Western Telematic Switch PLS 345 User Manual

WTI Part No. 13236  
Rev. A  
PLS-345  
Physical Layer Switch  
User's Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Warnings and Cautions:  
No Serviceable Parts Inside;  
Authorized Service Personnel Only  
Do not attempt to repair or service this device yourself. Internal  
components must be serviced by authorized personnel only.  
Shock Hazard - Do Not Enter  
Nameplate Power Warning  
This device should only be operated with the type of power  
source indicated on the instrument nameplate. If you are not  
sure of the type of power service available, consult your local  
power company.  
Connect unit only to a properly measured supply. Use  
only three wire cord which is provided with the unit.  
Reliable earthing of this equipment must be maintained.  
Particular attention should be given to supply  
connections when connecting to power strips, rather than  
direct connections to the branch circuit.  
Rack Mount Installation  
When installing this device in an instrument rack, the following  
factors must be accounted for:  
1. Enclosed Racks: Enclosed racks must provide adequate  
ventilation. Make certain that the rack is not overly  
crowded and note that each unit in the rack generates its  
own heat. An enclosed rack should have louvered sides  
and a fan to circulate cooling air.  
When mounting the unit in an enclosed rack with a  
ventilation fan at the top of the rack, note that excessive  
heat generated by devices at the bottom of the rack can be  
drawn upward and into the ventilation slots of units located  
at the top. Make certain to provide adequate ventilation for  
equipment installed at the bottom of the rack.  
i
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
Rack Mount Installation (Continued)  
1. Enclosed Racks (Continued):  
The ambient within the rack may be greater than room  
ambient. Installation should be such that the amount of air  
flow required for safe operation is not compromised. The  
maximum temperature for the equipment in this  
environment is 45°C. Consideration should be given to the  
maximum rated ambient.  
Installation should be such that a hazardous stability  
condition is not achieved due to uneven loading.  
2. Open Racks: Make certain that the rack frame does not  
block the ventilation slots on the instrument cover. If the  
device is installed on sliders, check the unit when seated  
all the way into the rack to make certain that ventilation  
slots are not blocked.  
Ventilation  
Slots in the instrument cover are provided to allow ventilation  
for heat dissipation. To ensure safe, reliable operation, these  
openings must not be covered or blocked.  
Disconnect Power  
If any of the following events are noted, immediately disconnect  
the unit from the outlet and contact qualified service personnel:  
1. If the power cord becomes frayed or damaged.  
2. If liquid has been spilled into the device or if the device  
has been exposed to rain or water.  
ii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Table of Contents  
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1  
2. Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
2.1. Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
2.2. Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
3. Quick Start / System Overview . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
4. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
4.1. Power Supply Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
4.2. Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
4.3. Connecting Common and A/B Lines . . . . . . . . . . . . . . . . . . . . . . 4-2  
4.4. Connecting the Network Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
4.5. Connecting an External Modem . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
4.6. Connecting a PC to the Console Port . . . . . . . . . . . . . . . . . . . . . 4-2  
5. SetUp and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1  
5.1. System Mode and User Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1  
5.2. Communicating with the PLS-345 . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
5.3. PLS Command/Menu Conventions . . . . . . . . . . . . . . . . . . . . . . . 5-4  
5.4. Defining General Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5  
5.5. Circuit Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8  
5.6. Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9  
5.6.1. Implementing IP Security . . . . . . . . . . . . . . . . . . . . . . 5-11  
5.7. The Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13  
5.7.1.  
5.7.2.  
Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . 5-13  
Selecting Monitor Mode Parameters . . . . . . . . . . . . . 5-13  
5.8. Save Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 5-16  
6. The Status Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1  
6.1. The Circuit Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1  
6.2. The Network Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3  
7. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1  
7.1. Manual A/B Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1  
7.2. Code Activated A/B Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2  
7.2.1. The /A Command and the /B Command . . . . . . . . . . . 7-2  
7.2.2. The /D Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3  
7.3. The Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4  
8. Saving and Restoring Configuration Parameters . . . . . . . . 8-1  
8.1. Sending Parameters to a File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1  
8.2. Restoring Saved Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2  
iii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
9. Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1  
9.1. Monitoring Signal Drop and/or Power Loss. . . . . . . . . . . . . . . . 9-1  
9.2. Monitoring a Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3  
10. Command Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1  
10.1. Display Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1  
10.2. Configuration Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2  
10.3. Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4  
Appendices  
A. Interface Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apx-1  
A.1. Console Port Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apx-1  
A.2. Modem Port Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apx-1  
A.3. Common Ports and A/B Ports . . . . . . . . . . . . . . . . . . . . . . . . . Apx-2  
B. Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apx-3  
C. Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apx-4  
List of Figures  
2.1. Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
2.2. Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
3.1. The Circuit Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3  
3.2. The Command Help Screen (System Mode). . . . . . . . . . . . . . . . . . . . 3-4  
5.1. The Circuit Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3  
5.2. The General Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5  
5.3. The Circuit Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8  
5.4. The Network Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10  
5.5. The IP Security Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11  
5.6. The Monitor Mode Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . 5-14  
6.1. The Circuit Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1  
6.2. The Network Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3  
9.1. Monitoring Signal Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1  
9.2. AUX Port Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2  
9.3. Monitoring a Switch or Relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3  
9.4. AUX Port Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4  
A.1. Console Port Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apx-1  
A.2. Modem Port Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apx-1  
A.3. Common Ports and A/B Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Apx-2  
iv  
Download from Www.Somanuals.com. All Manuals Search And Download.  
1. Introduction  
The PLS-345 Physical Layer Switch is a versatile A/B switching  
system, which can be controlled over any TCP/IP network using  
standard Telnet, or out-of-band using an external modem and  
basic VT100 type terminal emulation. Each of the three A/B  
circuits can be switched via code command, or locally via  
manual switches on the instrument front panel. Other intelligent  
features include password protected access to command mode  
functions, site I.D. Message, connector labels, status displays  
and more.  
The PLS-345 is designed for applications that require automatic  
routing of Cat5 10/100Base-T signals between a common jack  
and an A and B jack. The PLS is also ideal for switching  
RS-232, DSL, RS-422/485, or telephone lines.  
Monitor Mode  
The Monitor Mode allows the PLS-345 to monitor an external  
RS-232 line or contact closure input and automatically switch  
selected A/B paths. Easily definable parameters allow the user  
to select the monitor signal trigger duration, circuits to switch,  
and the option to return circuits to their original A/B position.  
Security Features  
Address-specific IP security masks prevent unauthorized sources  
from accessing the PLS-345 menu through the network. The  
PLS-345 provides two levels of operational passwords; the  
system administrator level, which allows access to all  
configuration and switching functions, and the user level, which  
only allows switching of the circuits.  
Easy to Configure, Easy to Use  
The PLS-345 can be configured over the network, via modem, or  
from a local PC or terminal connected to the unit's Console Port.  
Easy to use commands let you assign a location name, set system  
parameters, and view circuit status. Circuits can be switched  
using numbers or names.  
1-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
Applications  
· Controlled A/B Switching of Cat5 Connections.  
· A/B Routing of 10/100Base-T Ethernet, ISDN, DSL, Telco,  
or RS-232 Lines.  
· Remote Switching to "Out-of-Service" or "Off-Line"  
Conditions.  
· Switch to Backup Firewall or VPN.  
· Disaster Recovery Switching.  
Features  
· Three Individually Controlled RJ-45 Circuits.  
· IP and Password Security Features.  
· Signal Monitoring for Automatic Switching.  
· Retains Selected Position with Power Off.  
· Independent 10Base-T Ethernet Control Port.  
· Independent RS-232 Console Port.  
· Independent Modem Port for Out-of-Band Management.  
Typographic Conventions  
Throughout this manual, typefaces and characters have been used  
to denote the following:  
COURIER FONT Indicates characters typed on the keyboard.  
For example, ]S or ]P 02.  
[Bold Font]  
Text set in bold face and enclosed in  
square brackets, indicates a specific key.  
For example, [Enter] or [Esc].  
1-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
2. Unit Description  
2.1. Front Panel  
As shown in Figure 2.1, the PLS-345 Front Panel includes the  
following components:  
Figure 2.1: Front Panel  
Circuit 1: Status indicator lights and manual controls for  
Circuit 1. Includes the following:  
À
A) Line "A" Selector Button and Status LED: Press  
the "A" button to switch the common line for Circuit 1  
to the "A" connector. The LED adjacent to the  
Selector Button will light when Line "A" is selected.  
B) Line "B" Selector Button and Status LED: Press  
the "B" button to switch the common line for Circuit 1  
to the "B" connector. The LED adjacent to the  
Selector Button will light when Line "B" is selected.  
Note: Each circuit can either be manually switched  
using the corresponding selector button, manually  
switched using the Master A/B Switch, switched in  
response to the /A and /B commands, or switched  
automatically by the Monitor feature.  
Circuit 2: Same as item 1 above, except these  
components control switching of common line 2.  
Á
Â
Ã
Circuit 3: Same as item 1 above, except these  
components control switching of common line 3.  
ON: Lights when AC Power is applied to the PLS-345.  
2-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
RDY: Flashes when the PLS-345 is ready to receive  
commands.  
Ä
RXD: Flashes when the PLS-345 receives commands.  
Å
Æ
Master A/B Switch: Used to manually switch all three  
circuits. When the "A" or "B" button is pressed, all three  
circuits will be switched to the corresponding "A" or "B"  
line, and the appropriate status LED on each circuit  
will light.  
2.2. Back Panel  
Figure 2.2: Back Panel  
Circuit 1 Connectors and Indicators: RJ45 connectors  
and LED status indicators for the Circuit 1 common line  
and "A" and "B" lines.  
À
A) "A" Connector and Status LED: The status LED  
will light when line "A" is selected.  
B) "B" Connector and Status LED: The status LED  
will light when line "A" is selected.  
C) Common Connector: For connection to Common  
Line 1.  
Circuit 2 Connectors and Indicators: Same as item 1  
above, except these components are used for connection to  
the Circuit 2 "A", "B", and Common lines.  
Á
Â
Circuit 3 Connectors and Indicators: Same as item 1  
above, except these components are used for connection to  
the Circuit 3 "A", "B", and Common lines.  
2-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 2: Unit Description  
Network Port and Activity Indicator: An RJ45 Ethernet  
port, for connection to your TCP/IP network. To  
communicate via Network, please access the PLS-345 as  
described in Section 5.2.  
Ã
Note: The PLS-345 features a 10Base-T network  
interface. When connecting the PLS-345 to a  
100Base-T interface, most router switches will  
autosense to determine if the device is 100Base-T or  
10Base-T, and then configure the network interface  
accordingly. If your router switch does not  
autosense, the network interface port must be  
manually set to 10Base-T.  
Modem Port: A male, RS-232, DB9 connector, DTE  
configuration. For connection to an external modem.  
Ä
Å
Æ
Console Port: A male, RS-232, DB9 connector, DTE  
configuration. For connection to a Local PC.  
Monitor Selector Switch: A slide switch that is used to  
set the PLS-345 to monitor either an RS-232 line or a  
contact. When properly configured, the PLS-345 can  
perform A/B switching based on the signal level at either  
an RS-232 Line or a contact connected to the Monitor  
Input Connector. For more information on the Monitor  
feature, please refer to Section 5.7.  
Monitor Input Connector: A two pin connector, which is  
used to attach the ground and input lines for an RS-232  
line or contact circuit that you wish to monitor. When  
properly configured, the PLS-345 can perform A/B  
switching based on the signal level at the Monitor Input  
Connector. For more information on the Monitor feature,  
please refer to Section 5.7.  
Ç
Power Components: A Master Power Switch and an AC  
power cable receptacle. For more information on power  
ratings, please refer to the specifications printed adjacent  
to the power cable receptacle. Prior to connecting the  
PLS-345 to your power source, please refer to the  
warnings and cautions listed at the beginning of this User's  
Guide and in Section 4.1.  
È
2-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
2-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
3. Quick Start / System  
Overview  
This section provides a brief overview of basic PLS capabilities,  
and describes a simple test that can be performed to verify that  
you are able to communicate with the unit.  
The Quick Start procedure is included primarily to provide a  
quick demonstration of PLS capabilities. In order to take full  
advantage of the complete range of features provided by this  
unit, it is strongly recommended that you should complete the  
entire Installation and Configuration sections after completing  
the Quick Start procedure.  
1. Apply Power: Connect the PLS to an appropriate power  
source. Prior to connecting the unit to your power supply,  
make certain to review the safety precautions listed at the  
beginning of this User's Guide, and in Section 4.1.  
2. Connect Network Cable, External Modem or PC: In  
order to configure and control the PLS, you must first  
decide how you will communicate with the unit; via  
network, modem, or local PC.  
a) Network: Connect your 10Base-T or 100Base-T  
network interface to the PLS Network Port. For more  
information, please refer to Section 4.4.  
Note: The PLS features a 10Base-T Interface. When  
connecting to a 100Base-T interface, most router  
switches will autosense to determine if the device is  
100Base-T or 10Base-T, and then configure the  
network interface accordingly. If your router switch  
does not autosense, the network interface port must be  
manually set to 10Base-T.  
b) Modem: Use a standard serial modem cable to  
connect your external modem to PLS's Modem Port.  
For more information, please refer to Section 4.5.  
c) Local PC: Attach a standard null modem cable from  
your PC COM port to the Console Port connector on  
the PLS back panel. For a description of the port  
interface, please refer to Appendix A.  
3-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
3. Access the Command Mode: In order to invoke  
commands and display status screens, you must first access  
the PLS command mode via Network, modem, or Console  
Port (local PC.) For more information, on command mode  
access, please refer to Section 5.2.  
Notes:  
Network Access: The PLS includes a default IP  
Address and Subnet Mask. This allows initial  
contact with the unit via network without first  
defining an IP address (providing you are  
contacting the PLS from another node on the same  
subnet.) When installing the PLS in a working  
network environment, it is recommended to define  
network parameters as described in Section 5.6.  
Modem & Console Port Access: Factory set PLS  
parameters are as follows: 9600 bps, 8 Data Bits,  
One Stop Bit, No Parity. Although PLS parameters  
can be easily redefined, for this Quick Start  
procedure only, it is recommended that you  
configure your communications program to accept  
the default parameters.  
a) Network Access: Start your Telnet program, then  
Telnet to the default PLS IP Address  
(192.168.168.168.) For example, on a UNIX system,  
the telnet command would be invoked as shown below.  
$ telnet 192.168.168.168 [Enter]  
After the telnet command is invoked, the PLS Circuit  
Status Screen (Figure 3.1) should be displayed,  
followed by the PLS> command prompt.  
If you wish to contact the PLS from a node that is not  
on the same subnet you can either change your PC's IP  
address to an address that is on the same subnet as the  
PLS (e.g., 192.168.168.xxx), or access the PLS  
command mode via modem or Console Port, and define  
Network Parameters as described in Section 5.6.  
3-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 3: Quick Start / System Overview  
Physical Layer Switch v1.00  
Site ID: PLS-345_TEST_IRVINE_CALIFORNIA  
CKT#  
|
From  
|
To  
|
POS  
|
MON  
|
Default  
|
-----+------------------+------------------+-----+-----+---------|  
1
2
3
|
|
|
PORT_11111111111  
PORT_22222222222  
PORT_33333333333  
|
|
|
PORT_BBBBBBBBBBB  
PORT_AAAAAAAAAAA  
PORT_AAAAAAAAAAA  
|
|
|
B
A
A
|
|
|
|
|
|
A
A
A
|
|
|
*
*
-----+------------------+------------------+-----+-----+---------|  
Command Echo:  
On  
Inactivity Timeout:  
Command Confirmation:  
Automated Mode:  
30 Min  
On  
Off  
On  
Monitor Mode:  
Monitor Input Level:  
1
-
High  
"/H" for help.  
PLS>  
Figure 3.1: The Circuit Status Screen  
b) Modem Access: Start your communications program,  
and dial the number for the external modem. The PLS  
Circuit Status Screen (Figure 3.1) should be displayed,  
followed by the PLS> command prompt.  
c) Console Port Access (Local PC): Start your  
communication program, make certain the  
communications program is set for the PC COM port  
that is attached to the PLS, and then press [Enter]. The  
PLS Circuit Status Screen (Figure 3.1) should be  
displayed, followed by the PLS> command prompt.  
5. Review Help Menu: At the PLS> command prompt, Type  
/H and press [Enter] to display a help menu (Figure 3.2),  
which provides a basic listing of PLS commands.  
3-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
Physical Layer Switch v1.00  
Display  
Site ID: PLS-345_TEST_IRVINE_CALIFORNIA  
/H  
Display Help Screen  
/S  
/SN  
Display Circuit Status  
Display Network Status  
Configuration  
/G  
View/Set General Parameters  
/P [n] View/Set Circuit Parameters  
/N  
/M  
/DL  
View/Set Network Parameters  
View/Set Monitor Parameters  
Download Configuration to File  
Control  
+-------------------------------------------+  
/A <n> Switch Circuit  
/B <n> Switch Circuit  
n
n
to  
to  
A
B
|
|
|
|
|
|
[n]  
<n>  
n+n or  
n:n  
*
,y  
=
=
optional ckt. common name or number  
required ckt. common name or number  
|
|
|
|
|
|
/D  
/T  
/X  
Set Circuits to Default  
Reset Network Interface  
Exit/Disconnect  
n
n
=
n
ckt.  
through ckt.  
n
and ckt.  
n
=
=
=
ckt.  
n
all ckts.  
bypass "Sure? (y/n)"  
+-------------------------------------------+  
PLS>  
Figure 3.2: The Command Help Screen (System Mode)  
6. Test A/B Switching: You may test both manual and  
command driven A/B switching as follows:  
a) Manual: Press one of the "A" or "B" Selector Buttons  
on the PLS Front Panel, the corresponding LED  
indicator should light.  
b) Command Driven: From the PLS> command prompt,  
type /B 1 and press [Enter]. After the command is  
execute, the Circuit Status Screen should appear.  
Check the Circuit Status Screen to make certain that  
Circuit 1 has been switched to the "B" position.  
7. Exit Command Mode: When you have finished testing  
the PLS unit, type /X and press [Enter] to exit from the  
PLS Command Mode. Note that it is recommended to  
always disconnect using the /X command. If the /X  
command is not invoked at the end of a command session,  
then the PLS will not exit from command mode until the  
No Activity Timeout feature closes the session. In this  
case, further access to the PLS command mode will not be  
allowed until the current session times out.  
This completes the introductory overview of the PLS. Please  
proceed to Sections 4 and 5 for complete installation and  
configuration procedures.  
3-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
4. Installation  
4.1. Power Supply Connection  
Connect the PLS-345 to an appropriate power supply.  
CAUTIONS:  
This device should only be operated with the  
type of power source indicated on the  
instrument nameplate. If you are not sure of  
the type of power service available, please  
contact your local power company.  
Reliable earthing (grounding) of this unit must  
be maintained. Particular attention should be  
given to supply connections when connecting to  
power strips, rather than directly to the branch  
circuit.  
Check nameplate ratings to ensure that there is  
no overloading of supply circuits that could  
have an effect on overcurrent protection and  
supply wiring.  
4.2. Initialization  
If you are reinstalling a PLS-345 unit that has been previously  
installed, or if you wish to ensure that the PLS-345 is starting out  
with all parameters set in the default status, the PLS can be  
initialized to default values as described below.  
Note: This initialization procedure will set all  
parameters to defaults, and will clear all user defined  
values such as network settings, and plug names.  
1. Make certain that the PLS-345 Power Switch is set in the  
"Off" position.  
2. Locate the Master A/B Switches on the unit's front panel.  
Press and hold the "A" button, and then press the Power  
Switch to the "On" position.  
3. The Circuit Status Indicator LEDs will flash briefly,  
indicating that the unit has been reset to defaults. Release  
the "A" button.  
4-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
4.3. Connecting Common and A/B Lines  
Connect your Cat5 cables to the appropriate A, B, and common  
line connectors on the PLS back panel. For a description of port  
interfaces, please refer to Appendix A.  
4.4. Connecting the Network Cable  
The PLS Network Port is an RJ45, 10Base-T Ethernet Jack, for  
connection to a TCP/IP network. Connect your network interface  
to the PLS Network Port.  
The PLS features a default IP Address (192.168.168.168.)  
Providing that you are communicating with the unit from a node  
on the same subnet, this allows you to initially contact the PLS  
without first accessing the PLS command mode to define an IP  
address. Note however, that when installing the PLS in a  
working network environment, it is strongly recommended to  
assign the IP Address, Gateway Address, and Subnet Mask as  
described in Section 5.6.  
Note: The PLS features a 10Base-T Interface.  
When connecting the PLS to a 100Base-T interface,  
note that most router switches will autosense to  
determine if the device is 100Base-T or 10Base-T,  
and then configure the network interface accordingly.  
If your router switch does not autosense, the network  
interface port must be manually set to 10Base-T.  
4.5. Connecting an External Modem  
Use an appropriate DB9 cable to connect your external modem to  
the Modem port on the PLS back panel. Use a standard serial  
modem cable. For a description of the Modem Port interface,  
please refer to Appendix A. Note that the PLS General  
Parameters Menu allows you to define a Modem Initialization  
string and Modem Disconnect string as described in Section 5.4.  
4.6. Connecting a PC to the Console Port  
Use an appropriate DB9 cable to connect the PLS Console Port  
to a free COM port on your PC or terminal. Use a standard null  
modem cable. For a description of the Console Port Interface,  
please refer to Appendix A.  
4-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
5. SetUp and Configuration  
5.1. System Mode and User Mode  
In order to restrict access to sensitive command functions, the  
PLS-345 features two separate operating modes; System Mode  
and User Mode.  
The System Mode allows access to all configuration menus, A/B  
switching functions and status screens, and the User Mode allows  
access only to A/B switching functions and the status screens;  
when the User Mode is active, you are not allowed to access the  
configuration menus or reset the PLS Network Port.  
When the System Password has been defined, the PLS-345 will  
display a password prompt whenever the unit is contacted via the  
Console Port, Modem Port, or Network Port. The password  
entered at this prompt determines whether the unit will start-up  
in System Mode or User Mode. If the System Password is  
entered, the System Mode will be active. If the User Password is  
entered, the User Mode will be active. Both the System  
Password and User Password are defined via the PLS's General  
Parameters menu.  
Note: If the System Password is not defined as  
described in Section 5.4, the PLS will not display the  
password prompt, and will always start-up in System  
Mode; allowing all users to access the configuration  
menus without entering a password. Therefore, it is  
recommended to always define the System Password  
in order to restrict access to sensitive command  
functions.  
5-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
5.2. Communicating with the PLS-345  
In order to configure the unit or invoke command functions, you  
must first connect to the PLS-345 and access the command mode.  
1. Start your communications program (e.g. Hyperterminal.)  
Make certain that the PLS and your communications  
program are set for the same parameters (e.g. COM port,  
baud rate, etc.)  
2. Access the Command Mode:  
a) Local Access (Console Port): To access the command  
mode from a local PC connected directly to the PLS  
via the Console Port, press [Enter].  
i. If you have already hit other keys, press [Enter]  
twice. There must be no other characters  
preceding [Enter].  
ii. If the System Password has been defined, the  
password prompt will be displayed. Key in your  
System Password or User Password and press  
[Enter]. The PLS-345 will display the Status  
Screen (Figure 5.1), followed by the "PLS>"  
command prompt.  
Note: In order to change PLS configuration  
parameters, the unit must be operating in System  
Mode.  
b) Modem Access: To access the command mode via  
modem, proceed as follows (Note that an external  
modem must be installed at the PLS Modem Port):  
i. Dial the number for the external modem connected  
to the PLS Modem Port.  
ii. If you have already defined the System Password,  
a prompt will be displayed. Key in your System  
Password or User Password and press [Enter]. If  
the System Password has not been defined, then  
just press [Enter]. The PLS will display the  
Status Screen (Figure 5.1), followed by the "PLS"  
command prompt.  
5-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 5: SetUp and Configuration  
Physical Layer Switch v1.00  
Site ID: PLS-345_TEST_IRVINE_CALIFORNIA  
CKT#  
|
From  
|
To  
|
POS  
|
MON  
|
Default  
|
-----+------------------+------------------+-----+-----+---------|  
1
2
3
|
|
|
PORT_1  
PORT_2  
PORT_3  
|
|
|
PORT_B  
PORT_A  
PORT_A  
|
|
|
B
A
A
|
|
|
|
|
|
A
A
A
|
|
|
*
*
-----+------------------+------------------+-----+-----+---------|  
Command Echo:  
On  
Inactivity Timeout:  
Command Confirmation:  
Automated Mode:  
30 Min  
On  
Off  
On  
Monitor Mode:  
Monitor Input Level:  
1
-
High  
"/H" for help.  
PLS>  
Figure 5.1: The Circuit Status Screen  
c) Network Access: The PLS includes a default IP  
address (192.168.168.168), which allows you to  
contact the unit from any network node on the same  
subnet. When the PLS is installed in a working  
network environment, it is recommended that you  
redefined the IP Address, Subnet Mask, and Gateway  
Address as described in Section 5.6. To contact the  
PLS via network, proceed as follows:  
i. Telnet to the PLS's IP address. For example, if the  
IP address is "192.168.168.168", then on a UNIX  
system, the Telnet command would be invoked as  
follows:  
$ telnet 192.168.168.168 [Enter]  
ii. Note that if the Telnet connection is refused, this  
may mean that either the IP Security feature (see  
Section 5.6.1), has denied the connection, or the  
unit is operating on a 100BaseT network that does  
not autosense for 10BaseT devices (see  
Section 4.4.)  
iii. If the System Password has been defined, the  
password prompt will be displayed. Key in your  
System Password or User Password and then press  
[Enter]. The PLS will display the Status Screen  
(Figure 5.1), followed by the "PLS>" command  
prompt.  
5-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
5.3. PLS Command/Menu Conventions  
When invoking PLS commands or selecting items from  
configuration menus, note the following:  
· All PLS commands can be invoked at the PLS> command  
prompt, or from the General Parameters Menu, Circuit  
Parameters Menus, Monitor Parameters Menu, or Network  
Parameters Menu.  
· PLS commands are not case sensitive.  
· All PLS commands are invoked by pressing [Enter].  
· To select an item from a PLS menu, key in the number for  
the item and press [Enter]. To exit from a menu, press  
[Esc] at any time. Parameters defined up to that point will  
be saved.  
· To display the Help Screen, type /H [Enter].  
· The ",y" option can temporarily suppress the "Sure"  
(confirmation) prompt. The ",y" option is entered at the  
end of the command line, immediately following the  
command or argument. For example, to reset the network  
port without displaying the "Sure" prompt, type /T,y and  
then press [Enter].  
· If you are configuring the PLS via network, network  
communication parameters will not be changed until your  
telnet connection to the PLS has been terminated  
5-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 5: SetUp and Configuration  
GENERAL PARAMETERS:  
1. System Password:  
2. User Password:  
3. Site ID:  
(defined)  
(defined)  
PLS-345_TEST_IRVINE_CALIFORNIA  
4. Modem Init. String:  
5. Modem Disc. String:  
6. Baud Rate:  
ATE0M0Q1&C1&D2S0=1  
(undefined)  
38400,N,8,1  
On  
7. Command Echo:  
8. Inactivity Timeout:  
30 Min  
9. Command Confirmation: On  
10. Automated Mode:  
Off  
A. Default Parameters  
Enter Selection or <ESC> to Exit ...  
Figure 5.2: The General Parameters Menu  
5.4. Defining General Parameters  
When the "PLS>" prompt appears, type /G [Enter] to display  
the General Parameters menu (Figure 5.2). Note that this menu  
is only available in System Mode; if you have accessed the PLS  
Command Mode with the User Password, you must log out and  
then log back in using the System Password. The General  
Parameters Menu offers the following options:  
1. System Password: When the System Password is defined,  
the PLS will display a prompt before allowing access to  
command mode. If the System Password is entered, the  
PLS will start-up in System Mode. To define the System  
Password, type 1, press [Enter] and follow the  
instructions in the submenu. (Up to 16 characters, case-  
sensitive; Default = undefined.)  
Notes:  
If the System Password is not defined, the  
password prompt will not be displayed, and the  
PLS will always start-up in System Mode.  
The PLS General Parameters Menu will not display  
the System Password. When the System Password  
has been defined, this field will read "(defined)".  
5-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
2. User Password: The User Password allows access to A/B  
switching commands and status screens, but does not allow  
access to the PLS configuration menus. To define the User  
Password, type 2, press [Enter] and follow the  
instructions in the submenu. (Up to 16 characters, case-  
sensitive; Default = undefined.)  
Note: The PLS General Parameters Menu will not  
display the User Password. When the User Password  
has been defined, this field will read "(defined)".  
3. Site ID: Defines a text string that can be used to denote  
the installation site or other unit-specific information. To  
define the Site ID message, type 3, press [Enter] and  
follow the instructions in the submenu. (Up to 32  
characters; Default = undefined.)  
4. Modem Initialization String: To define the Modem  
Initialization String, type 4, press [Enter], and follow the  
instructions in the submenu. For more information on the  
initialization string, please refer to the user's guide for  
your external modem. Make certain that the external  
modem is set to auto-answer in one ring. (Up to 32  
characters; Default = ATE0M0Q1&C1&D2S0=1.)  
5. Modem Disconnect String: To define the disconnect  
string, type 5, press [Enter] and follow the instructions in  
the submenu. For more information, please refer to the  
user's guide for your external modem. (Up to 32  
characters; Default = undefined.)  
6. Baud Rate: To select the baud rate for the Modem Port  
and Console Port, type 6, press [Enter], and follow the  
instructions in the submenu. Make certain to select a rate  
that is compatible with the external modem, and/or the  
device connected to the Console Port. (Default = 9600  
bps, no parity, 8 data bits, and one stop bit.)  
Notes:  
When this setting is changed, the new baud rate  
will not be applied until the user exits and then re-  
enters the PLS command mode.  
Only the baud rate can be redefined. Bits and  
parity settings are always 8 data bits, 1 stop bit,  
no parity.  
5-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 5: SetUp and Configuration  
7. Command Echo: Enables/disables command echo. When  
enabled, commands sent to the PLS will be echoed back to  
your PC, allowing keystrokes to be displayed. To enable  
or disable the command echo, type 7, press [Enter], and  
follow the instructions in the submenu. (Default = Off.)  
8. Inactivity Timeout: Determines how long the PLS will  
wait for additional commands. Type 8, press [Enter], and  
follow the instructions in the submenu. (Default = 2 Min.)  
9. Command Confirmation: When enabled, the PLS will  
display a "Sure?" prompt before completing the /A, /B, /D,  
/T, and /X commands. When confirmation is "On", the  
PLS will also display the status screen after commands are  
successfully completed. When disabled, the "Sure?"  
prompt is suppressed, and the status screen is not sent  
when commands are completed. To enable/disable this  
feature, type 9, press [Enter], and follow the instructions  
in the submenu. (Default = "On".)  
10. Automated Mode: When enabled, the PLS will execute  
the /A, /B, /D, /T, and /X commands without displaying the  
confirmation prompt, status screen or confirmation  
messages. When Automated Mode is enabled, the  
password prompt will also be suppressed, and the unit will  
always start up in System Mode. This allows the PLS to  
be controlled by a device which generates commands to  
control A/B switching without human interaction. To  
enable/disable this feature, type 10, press [Enter], and  
follow the instructions in the submenu. (Default = Off.)  
A. Default Parameters: Resets the PLS to default values. In  
addition, all menu selected parameters, including circuit  
names and passwords will be lost. Note that if Command  
Confirmation is disabled, the "Sure" prompt will not be  
sent before this command is executed.  
Note: If the Default Parameters function is invoked  
via the Network Port, the IP Address is not reset. If  
this function is invoked via the Console Port or  
Modem Port, the IP Address and other network  
parameters will be reset.  
After defining General Parameters, press [Esc] to exit from the  
General Parameters menu.  
5-7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
CIRCUIT #1 PARAMETERS:  
1. Common Name (From): PORT_11111111111  
2. "A" Name (To):  
3. "B" Name (To):  
4. Default Position:  
PORT_AAAAAAAAAAA  
PORT_BBBBBBBBBBB  
A
Enter Selection or <ESC> to Exit ...  
Figure 5.3: The Circuit Parameters Menu  
5.5. Circuit Parameters  
The Circuit Parameters menus are used to assign names and  
select default A/B positions for each of the switched A/B  
circuits. There is a separate Circuit Parameters menu for each  
A/B circuit. Note that the Circuit Parameters menus are not  
available in User Mode.  
To access the Circuit Parameters menus from the PLS> command  
prompt, type /P n [Enter]; where n is the number or common  
name of the desired A/B circuit. The Circuit Parameters Menu  
(Figure 5.3) offers the following options:  
1. Common Name (From): Assigns a name to the common  
line (C) for this A/B circuit. When circuit names are  
assigned, A/B switching commands can be invoked using  
the number or common name of the desired A/B circuit.  
To assign a Common Name, type 1, press [Enter], and  
follow the instructions in the submenu. (Up to 16  
characters; Default = undefined.)  
2. "A" Name (To): Assigns a name to the "A" line for this  
A/B circuit. When a name is assigned to the "A" line, and  
the circuit is in the "A" position, this name will appear in  
the "To" column on the PLS Circuit Status Screen. To  
assign a name to the "A" line, type 2, press [Enter], and  
follow the instructions in the submenu. (Up to 16  
characters; Default = undefined.)  
5-8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 5: SetUp and Configuration  
3. "B" Name (To): Assigns a name to the "B" line for this  
A/B circuit. When a name is assigned to the "B" line, and  
the circuit is in the "B" position, this name will appear in  
the "To" column on the PLS Circuit Status Screen. To  
assign a name to the "B" line, type 3, press [Enter], and  
follow the instructions in the submenu. (Up to 16  
characters; Default = undefined.)  
4. Default Position: Determines how this A/B circuit will be  
set when the /D (default) command is invoked. When the  
/D command is invoked, each A/B circuit will be  
automatically set to the default A/B setting specified by  
the corresponding Circuit Parameters menu. To assign  
the default position for this circuit, type 4, press [Enter]  
and follow the instructions in the submenu. (Default = A.)  
After defining Circuit Parameters, press [Esc] to exit from the  
Circuit Parameters menu.  
5.6. Network Parameters  
In order to effectively communicate with the PLS via network,  
the IP Address, Subnet Mask, and Gateway Address should be  
defined using the Network Parameters Menu. Note that although  
the PLS features a default IP Address (which allows  
communication with the unit before the network interface is  
completely configured), it is recommended to use the Network  
Parameters Menu to select more appropriate parameters when  
installing the PLS in a working network environment.  
If desired, the PLS Network Parameters Menu also allows you to  
implement IP Security features, which can restrict network  
access based on the user's IP address as described in  
Section 5.6.1.  
Note that settings for these network parameters will depend on  
the configuration of your individual network Please contact your  
network administrator for appropriate settings, and then assign  
parameters as described in this section.  
To access the Network Parameters Menu (Figure 5.4), type /N  
and press [Enter]. Note that this menu is not available in User  
Mode. The following options are available:  
5-9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
NETWORK PARAMETERS:  
1. IP Address:  
65.106.93.114  
255.255.255.0  
65.106.93.97  
2. Subnet Mask:  
3. Gateway Address:  
4. IP Security  
MAC Address:  
52-54-40-22-48-7a  
Enter Selection or <ESC> to Exit ...  
Figure 5.4: The Network Parameters Menu  
Note: Although new network port parameters can  
be specified via a network connection, newly  
selected parameters will not be applied until your  
telnet connection to the PLS has been terminated.  
1. IP Address: Defines the IP Address for the PLS unit.  
Type 1, press [Enter] and follow the instructions in the  
submenu. (Default = 192.168.168.168.)  
2. Subnet Mask: Defines the Subnet Mask for the PLS unit.  
Type 2, press [Enter], and follow the instructions in the  
submenu. (Default = 255.255.255.0.)  
3. Gateway Address: Defines the Gateway Address for the  
PLS unit. Type 3, press [Enter] and follow the  
instructions in the submenu. (Default = undefined.)  
4. IP Security: Sets up the IP Security feature as described  
in Section 5.6.1. (Default = undefined.)  
5. MAC Address: Displays the unit's MAC address. Note  
that this item only displays the current address, and cannot  
be used to redefine the MAC address.  
5-10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 5: SetUp and Configuration  
IP SECURITY:  
1. Security Mask #1:  
2. Mask #1 Action:  
3. Security Mask #2:  
4. Mask #2 Action:  
5. Security Mask #3:  
6. Mask #3 Action:  
7. Security Mask #4:  
8. Mask #4 Action:  
9. Security Mask #5:  
10. Mask #5 Action:  
(undefined)  
Permit  
(undefined)  
Permit  
(undefined)  
Permit  
(undefined)  
Permit  
(undefined)  
Permit  
Enter Selection or <ESC> to Exit ...  
Figure 5.5: The IP Security Menu  
5.6.1. Implementing IP Security  
The PLS-345 can be configured to restrict unauthorized IP  
addresses from Telneting to the unit. This allows the user to  
grant Telnet access only to a specific group of IP Addresses, or  
block a particular IP address from gaining access. In the default  
state, the PLS accepts incoming IP connections from all hosts.  
To configure the IP Security feature, proceed as follows:  
1. Access the Network Parameters menu as described in  
Section 5.6. Note that the Network Parameters Menu and  
IP Security Menu are not available in User Mode.  
2. When the Network Parameters menu appears, type 4 and  
press [Enter] to access the IP Security menu (Figure 5.5).  
3. The IP Security menu lists five IP Security "masks" along  
with the selected permit/deny action for each mask.  
a) Each Security Mask prompt is used to define a specific  
IP address or range of IP addresses. Each Mask  
Action prompt is used to define the permit/deny action  
for the corresponding Mask.  
b) Masks are listed in order of ascending priority; Mask 1  
has the lowest priority, Mask 5 has the highest priority.  
c) Masks have a cumulative effect; high priority masks  
supersede the effect of lower priority masks.  
d) Each IP Address consists of a series of four eight bit  
numbers. The number 255 is used as a wild card.  
5-11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
Example 1: Deny access to all hosts except 192.1.1.5:  
Security Mask #1: 255.255.255.255  
Security Mask #2: 192.1.1.5  
Mask #1 Action: Deny  
Mask #2 Action: Permit  
Since 255 is a wild card, Mask #1 blocks all IP Addresses. Mask  
#2 then specifically grants access to 192.1.1.5 only.  
Example 2: Allow access only by addresses that begin with 192.  
Security Mask #1: 255.255.255.255  
Security Mask #2: 192.255.255.255  
Mask #1 Action: Deny  
Mask #2 Action: Permit  
Since 255 is a wild card, Mask 1 blocks all IP addresses. Mask 2  
then grants access to all addresses that begin with 192.  
Example 3: Allow access only by addresses that begin with 192,  
deny access to 192.1.1.5.  
Security Mask #1: 255.255.255.255  
Security Mask #2: 192.255.255.255  
Security Mask #3: 192.1.1.5  
Mask #1 Action: Deny  
Mask #2 Action: Permit  
Mask #3 Action: Deny  
Since 255 is a wild card, Mask 1 blocks all IP addresses. Mask 2  
then grants access to all addresses that begin with 192. Finally,  
Mask 3 specifically blocks access by 192.1.1.5.  
Note:  
Mask #5 has priority over the other four masks. If  
Mask #5 is set to deny access by  
"255.255.255.255" (all wild cards), all IP  
Addresses will be blocked, and you will not be able  
to access the PLS Command Mode via network.  
Access will only be allowed via the Console Port  
or Modem Port.  
When using the wild card address  
"255.255.255.255" to block access by all IP  
Addresses, make certain that at least one higher  
priority mask permits access by your IP address.  
5-12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 5: SetUp and Configuration  
5.7. The Monitor Mode  
The Monitor Mode allows the PLS-345 perform automatic A/B  
switching in response to signal changes at the monitor port on  
the instrument back panel. The Monitor Mode can be set to  
monitor a Contact or an RS-232 Line.  
5.7.1. Hardware Configuration  
In order to employ the Monitor Mode, you must first connect the  
monitored line to the PLS unit, and configure the Monitor  
Selector Switch as follows:  
1. Determine whether you will be monitoring a contact or an  
RS232 line. Locate the Monitor Selector Switch on the  
PLS back panel, and set the switch in the appropriate  
position.  
2. Connect the line that you wish to monitor to the Monitor  
Input Connector on the PLS back panel.  
a) RS232: Connect the appropriate RS232 pin to the  
Monitor Input Connector.  
b) Contact: Connect a line from the contact that you  
wish to monitor to the Monitor Input Connector.  
c) Ground Line: Connect an appropriate ground line to  
the Ground Connector on the PLS back panel.  
5.7.2. Selecting Monitor Mode Parameters  
After the monitored line is connected to the PLS, you must then  
use the Monitor Mode Parameters Menu to configure the Monitor  
Mode and determine which A/B circuits will be switched.  
From the PLS> command prompt, type /M and press [Enter].  
The Monitor Mode Parameters Menu will be displayed  
(Figure 5.6). Note that the Monitor Mode Parameters Menu is  
not available in User Mode. The Monitor Mode Parameters  
Menu offers the following options:  
Note: Do not enable the Monitor Mode (Item 1)  
until you have finished selecting the other Monitor  
Mode parameters. This will prevent the A/B  
circuit(s) from being accidentally switched when  
Monitor Mode parameters are changed.  
5-13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
MONITOR PARAMETERS:  
1. Monitor Mode:  
2. Switch If Level:  
3. Switch to Position:  
4. Delay Period:  
5. Return:  
On  
0
B
.5 Secs  
On  
-
Low  
6. Circuits to Switch: 2,  
3
Enter Selection or <ESC> to Exit ...  
Figure 5.6: The Monitor Mode Parameters Menu  
1. Monitor Mode: Enables/disables the Monitor Mode  
feature. Do not enable the Monitor Mode until you have  
finished selecting the other Monitor Mode parameters.  
(Default = Off.)  
2. Switch If Level: Determines which line condition will  
cause the selected A/B circuits to switch. This item can  
either be set to "0 - Low" or "1 - High". When this item is  
set at "0 - Low", the selected A/B circuit(s) will be  
switched when the line goes low. When this item is set at  
"1 - High", the selected A/B circuit(s) will be switched  
when the line goes high. (Default = "0 - Low".)  
3. Switch to Position: Determines which A/B line will be  
automatically selected when the line goes to the target  
level (Item 2.) For example, if Item 2 is set at "0 - Low"  
and Item 3 is set at "B", then the monitored line goes low,  
the selected A/B circuit(s) will be switched to Line B.  
(Default = B.)  
4. Delay Period: Determines how long the monitored line  
must remain at the target level (Item 2) in order to trigger  
automatic A/B switching. For example, if the target level  
is "1 - High" and the Delay Period is 1 minute, then the  
selected A/B circuits will be switched when the monitored  
line remains high for 1 minute. (Default = 5 Seconds.)  
Note: When Item 5 (Return) is enabled, the Delay  
Period also determines how long the line must return  
to (and remain at) the normal state in order for the  
A/B line to be switched back to it's original setting.  
5-14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 5: SetUp and Configuration  
5. Return: When enabled, the Monitor Mode will return the  
switched A/B circuit(s) to the original A/B position if the  
monitored signal also returns to its normal state.  
(Default = Off.)  
For example, assume the Monitor Mode is configured as  
follows:  
Switch if Level: 1 - High  
Switch to Position: B  
Return: On  
·
·
·
If the circuit starts in position "A", and the monitored line  
goes high, then the circuit will be switched to the "B"  
position. However, since the Return feature is enabled, if  
the line later returns to the "low" state, the circuit will also  
be switched back to the "A" state.  
Note: When Item 5 (Return) is enabled, the Delay  
Period also determines how long the line must return  
to (and remain at) the normal state in order for the  
A/B line to be switched back to it's original setting.  
6. Circuits to Switch: Determines which of the PLS's three  
switched A/B circuits will be controlled by the Monitor  
Mode. Note that when this item is used to enable the  
Monitor Mode at a given A/B circuit, then the Circuit  
Status Screen will display an asterisk in the "MON"  
column for that circuit. To choose the circuits that will be  
controlled by the Monitor Mode, proceed as follows:  
a) From the Monitor Mode Parameters Menu, type 6 and  
press [Enter]; the PLS will display a menu that lists  
all three available A/B Circuits.  
b) Key in the number for the desired circuit, and press  
[Enter]; the PLS will display another menu which  
allows you to include or exclude the circuit from the  
Monitor Mode.  
c) To assign the circuit to Monitor Mode, select "On", to  
remove the circuit from Monitor Mode, select "Off".  
After you have finished selecting parameters for the Monitor  
Mode, make certain to return to Item 1 in the Monitor Mode  
Parameters Menu and enable the Monitor Mode feature. The  
Monitor Mode will not function unless it has been enabled.  
5-15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
5.8. Save Configuration Parameters  
After the unit has been completely configured, it is recommended  
to save parameters to an ASCII file as described in Section 8.  
This allows quick recovery in the event that the unit is reset to  
default parameters, or if the configuration is accidentally deleted  
or altered.  
5-16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
6. The Status Screens  
The PLS Status Screens are used to display current conditions of  
the three switched A/B circuits and the network interface. There  
are two status screens; the Circuit Status Screen (/S), and the  
Network Status Screen (/SN).  
6.1. The Circuit Status Screen  
The Circuit Status Screen lists the current A/B settings for the  
PLS-345's three switched circuits, and also summarizes user-  
selected parameters, such as Command Echo, Inactivity Timeout,  
and Command Confirmation.  
As shown in Figure 6.1, the Circuit Status Screen lists the  
following items:  
1. Site ID Message: The currently defined Site ID message.  
Note that the site ID message is defined via the General  
Parameters Menu (/G).  
2. Ckt #: The circuit numbers for the PLS's three A/B  
circuits.  
Physical Layer Switch v1.00  
Site ID: PLS-345_TEST_IRVINE_CALIFORNIA  
CKT#  
|
From  
|
To  
|
POS  
|
MON  
|
Default  
|
-----+------------------+------------------+-----+-----+---------|  
1
2
3
|
|
|
COMMON_LINE_1  
COMMON_LINE_2  
COMMON_LINE_3  
|
|
|
LINE_B1  
LINE_A2  
LINE_A3  
|
|
|
B
A
A
|
|
|
|
|
|
A
A
A
|
|
|
*
*
-----+------------------+------------------+-----+-----+---------|  
Command Echo:  
On  
Inactivity Timeout:  
Command Confirmation:  
Automated Mode:  
30 Min  
On  
Off  
On  
Monitor Mode:  
Monitor Input Level:  
1
-
High  
"/H" for help.  
Figure 6.1: The Circuit Status Screen  
6-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
3. From: The user-defined name for the Common Line (C)  
for each of the three A/B circuits. Note that if the  
Common Line name has not been defined, this field will  
remain empty.  
4. To: The user defined name for the currently selected "A"  
or "B" line for each of the three A/B circuits. Note that if  
the A/B line names have not been defined, this field will  
remain empty.  
5. POS (Position): The currently selected "A" or "B" line  
for each of the three A/B circuits. This field will list  
either "A" or "B" to indicate which line is currently  
connected to the Common Line.  
6. MON (Monitor Mode): An asterisk will appear in this  
field for each circuit that has been configured for the  
Monitor Mode. An asterisk indicates that the circuit will  
be monitored if the Monitor Mode is enabled. Note that if  
the Monitor Mode has been configured at this circuit, but  
not actually enabled, an asterisk will still appear in this  
field.  
7. Default: The default A/B position that has been defined  
for this circuit using the Circuit Parameters Menu. This  
does not reflect the currently selected A/B Line, but  
indicates which A/B line will be selected if the PLS is  
reset to default settings.  
8. Other Parameters: The lower half of the status screen  
lists currently selected values for most of the parameters  
that are selected via the General Parameters Menu, plus the  
status of the Monitor Mode.  
6-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 6: The Status Screens  
Physical Layer Switch v1.00  
NETWORK STATUS:  
Site ID: PLS-345_TEST_IRVINE_CALIFORNIA  
52-54-40-22-48-7a  
TCB  
1
SRC PORT  
STATE  
Established  
SOURCE IP ADDR  
65.106.93.98  
16128  
PORT  
Telnet  
TCB  
1
STATE  
Connected  
PLS>  
Figure 6.2: The Network Status Screen  
6.2. The Network Status Screen  
The Network Status Screen lists the TCP port number, source  
port, source IP address and other Network related parameters.  
Note that the Network Status Screen is used primarily for  
diagnostic purposes, for a listing of current network parameters  
such as the IP Address and Subnet Mask, please refer to the  
Network Parameters Menu. As shown in Figure 6.2, the Network  
Status Screen includes the following information:  
1. Site ID: The currently defined Site ID message. Note that  
the site ID message is defined via the General Parameters  
Menu (/G).  
2. MAC Address: The MAC Address assigned to the PLS  
Network Interface card is listed in the second line of the  
Network Status Screen, adjacent to the text which reads  
"NETWORK STATUS."  
3. TCB: Transmission Control Block (Always 1.)  
a) SRC PORT (Source Port): The port number of the  
PC or terminal that has contacted the PLS via network.  
b) State: The current status of the TCB connection.  
c) Source IP Address: The IP Address of the network  
node that has currently accessed the PLS-345  
Command Mode.  
4. Port:  
a) TCB: Transmission Control Block (Always 1.)  
b) State: The current status of the Telnet Port.  
6-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
6-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
7. Operation  
The PLS-345 offers three different methods for switching  
A/B paths:  
1. Manual A/B Switching: The manual A/B Switches on the  
PLS front panel are used to initiate switching of one or  
more A/B Circuits.  
2. Code Activated A/B Switching: ASCII commands are  
sent to the PLS to initiate switching of one or more  
A/B Circuits.  
3. Automated A/B Switching (Monitor Mode): The PLS  
monitors a signal received via the Monitor Input Port, and  
switches one or more A/B Circuits according to  
user-defined parameters.  
These methods are discussed in the sections that follow.  
7.1. Manual A/B Switching  
The most basic method for switching A/B paths is accomplished  
using the manual A/B switches on the PLS front panel. When  
performing Manual A/B switching, note the following:  
· The Master A/B Switch (Labeled "All") can be used to  
switch all three A/B Circuits.  
· When an A/B Circuit is switched, the corresponding LED  
indicators on the instrument front panel and back panel will  
light.  
7-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
7.2. Code Activated A/B Switching  
The PLS offers three different commands for controlling A/B  
switching:  
· The /A command, which is used to switch one or more  
circuits to the "A" line.  
· The /B command, which is used to switch one or more  
circuits to the "B" line.  
· The /D command, which is used to switch all three circuits  
to their user-defined default A/B positions.  
All three of these commands are available in both System Mode  
and User Mode.  
7.2.1. The /A Command and the /B Command  
The /A command and the /B command can be used to control the  
"A" or "B" position of one or more of the A/B circuits. The /A  
command will switch one or more circuits to the "A" line, and  
the /B command will switch one or more circuits to the "B" line.  
Both the /A command and the /B command use the following  
format:  
/A <n> [Enter] or /B <n> [Enter]  
Where, n is one of the following:  
· Switch One Circuit: To switch one A/B circuit, enter the  
number or common name of the desired circuit. For  
example, to switch circuit 2 to the "A" position, type  
/A 2 [Enter].  
· Switch Two Circuits: To switch two circuits to the same  
A/B position, enter the numbers or common names of the  
desired circuits with a "plus" sign (+) between them (e.g.  
n+N). For example to switch circuits 1 and 3 to the "B"  
position, type /B 1+3 [Enter].  
· Switch All Circuits: To switch all three A/B circuits to the  
same A/B position, enter an asterisk (*) in place of the  
circuit number or name. For example, to switch all three  
circuits to the "A" position, type /A * [Enter].  
7-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 7: Operation  
The Command Confirmation Prompt:  
Normally, when the /A or /B commands are invoked, the PLS  
will prompt you for confirmation before actually implementing  
the command. If you wish to suppress this confirmation prompt,  
and execute commands without confirmation, you can employ  
one of the following methods:  
· Include the ",y" option in the command line (e.g. /A 1,y.)  
· Disable Command Confirmation as described in Section 5.4.  
· Enable the Automated Mode as described in Section 5.4.  
7.2.2. The /D Command  
The /D command can be used to switch all three PLS-345 circuits  
to their user-defined default A/B positions. Default A/B  
positions are defined via the Circuit Parameters Menus (/P n.)  
When the /D command is invoked, the PLS will set all three  
circuits to their default A/B positions, and then display the status  
screen, followed by the PLS> command prompt.  
The Command Confirmation Prompt:  
Normally, when the /D command is invoked, the PLS will prompt  
you for confirmation before actually implementing the command.  
If you wish to suppress this confirmation prompt, and execute  
commands without confirmation, you can employ one of the  
following methods:  
· Include the ",y" option in the command line (e.g. /D,y.)  
· Disable Command Confirmation as described in Section 5.4.  
· Enable the Automated Mode as described in Section 5.4.  
7-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
7.3. The Monitor Mode  
The Monitor Mode allows the PLS-345 perform automatic A/B  
switching in response to signal level changes at the monitor port  
on the instrument back panel. The Monitor Mode can be set to  
monitor a Contact or an RS-232 Line. For more information on  
the Monitor Mode, please refer to Section 5.7.  
7-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8. Saving and Restoring  
Configuration Parameters  
After the PLS has been properly configured, parameters can be  
downloaded and saved as an ASCII text file. Later, if the  
configuration is accidentally altered, the file with the saved  
parameters can be uploaded to automatically reconfigure the unit  
without the need to manually assign each parameter.  
Saved parameters can also be uploaded to other PLS units. This  
allows rapid set-up when several units will be configured with  
the same parameters.  
The “Save Parameters” procedure can be performed from any  
terminal emulation program (e.g. HyperTerminal, ProComm,  
etc.), that allows downloading of ASCII files.  
8.1. Sending Parameters to a File  
1. Start your terminal emulation program (e.g.  
HyperTerminal) and access the PLS Command Mode. If  
the password prompt is displayed, enter the System  
Password.  
2. When the PLS> command prompt appears, type /DL and  
press [Enter]. The PLS will prompt you to configure your  
terminal emulation program to receive an ASCII download.  
a) Set your terminal emulation program to receive an  
ASCII format download, and the specify a name for a  
file that will receive the saved parameters (e.g.  
PLS.PAR).  
b) Disable the Line Wrap function for your terminal  
emulation program. This will prevent command lines  
from being broken in two during transmission.  
3. When the terminal emulation program is ready to receive  
the file, return to the PLS Save Parameter File menu, and  
press [Enter] to proceed with the download. PLS  
parameters will be saved on your hard drive in the file  
specified in Step 2 above.  
8-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
4. The PLS will send a series of ASCII command lines which  
specify the currently selected PLS parameters. The last  
line of the file should end with a “/G-00” command.  
When the download is complete, press [Enter] to return to  
the "PLS>" command prompt.  
8.2. Restoring Saved Parameters  
This section describes the procedure for using your terminal  
emulation program to send stored parameters to the PLS.  
1. Start your terminal emulation program and access the PLS  
Command Mode; if the password prompt is displayed, enter  
the System Password.  
2. Configure your terminal emulation program to upload an  
ASCII text file.  
3. Upload the ASCII text file with the saved PLS parameters.  
If necessary, key in the file name and directory path.  
4. Your terminal emulation program will send the ASCII text  
file to the PLS. When the terminal program is finished  
with the upload, make certain to terminate the Upload  
mode.  
Notes:  
If the PLS detects an error in the parameters file, it  
will respond with the “Invalid Parameter” message.  
If an error message is received, carefully check the  
contents of the parameters file, correct the  
problem, and then repeat the Upload procedure.  
When the configuration file is sent to the PLS via  
Telnet, the IP Address, Subnet Mask, and Gateway  
Address will not be changed until all Telnet  
connections to the unit are terminated (including  
the connection that was used to send the saved  
parameters file.)  
5. If the parameter upload procedure is successful, the PLS  
will send a confirmation message, and then return to the  
"PLS>" command prompt. Type /S and press [Enter], the  
PLS Status Screen will be displayed. Check the Status  
Screen to make certain the unit has been configured with  
the saved parameters.  
8-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
9. Application Examples  
9.1. Monitoring Signal Drop  
and/or Power Loss  
In this application, the PLS-345 will monitor the DTR signal  
from a data device. If the signal drops or the data device loses  
power for more than one minute, the unit will automatically  
switch circuits 2 and 3 to the "B" line.  
Figure 9.1: Monitoring Signal Drop  
1. Connect Line from Data Device: Connect a line from the  
Data Device to the Monitor Input Connector as shown in  
Figure 9.1.  
2. Set Monitor Selector Switch: Locate the Monitor  
Selector Switch on the PLS back panel. Slide the switch to  
the "RS232" position.  
9-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
Figure 9.2: AUX Port Connection  
3. Configure Monitor Mode: Access the PLS command  
mode as described in Section 5.2. At the PLS> command  
prompt, type /M [Enter] to display the Monitor Mode  
Parameters Menu. Note that the Monitor Mode Parameters  
Menu is not available in User Mode. Set Monitor Mode  
Parameters as follows:  
a) Item 1 - Monitor Mode: On.  
Note: Do not enable the Monitor Mode until you  
have finished defining the other Monitor Mode  
parameters.  
b) Item 2 - Switch if Level: 0 - Low.  
c) Item 3 - Switch to Position: B.  
d) Item 4 - Delay Period: 1 Minute.  
e) Item 5 - Return: Off (Note that if you wanted the  
A/B circuits to return to their original positions if the  
monitored line goes high again, then this item would  
be enabled.)  
f) Item 6 - Circuits to Switch: Enable the Monitor  
Mode at circuits 2 and 3.  
4. Set Circuit Parameters: From the PLS command prompt,  
type /P 2 [Enter] to display the Circuit 2 Parameters  
Menu. Use item 4 (Default Position) in the Circuit  
Parameters Menu to set the default state for Circuit 2 to  
"A". Repeat this procedure for Circuit 3 (use the /P 3  
command to access the Circuit 3 Parameters Menu.)  
5. Operation: When the DTR signal is present (high),  
Circuits 2 and 3 will remain in the default (A) position. If  
the DTR drops for more than one minute, PLS A/B  
Circuits 2 and 3 will be switched to the "B" position.  
9-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 9: Application Examples  
Figure 9.3: Monitoring a Switch or Relay  
9.2. Monitoring a Contact  
In this application, the PLS will monitor a switch or contact.  
When the contact closes (signal goes low) for more than one  
minute, the PLS will automatically switch module 1 to the "B"  
position. Later, if the contact returns to the open position, the  
PLS will return circuit 1 to the "A" position.  
Note: This example could also be used to monitor a  
contact or switch that is normally closed. To  
automatically switch A/B circuits when a contact is  
opened, use item 3 (Switch if Level) in the Monitor  
Mode Parameters Menu (Section 5.7.2) to select the  
"1 - High" option.  
1. Connect Line from Data Device: Connect a line from the  
contact to the Monitor Input Connector as shown in  
Figure 9.3.  
2. Set Monitor Selector Switch: Locate the Monitor  
Selector Switch on the PLS back panel. Slide the switch to  
the "CONTACT" position.  
9-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
Figure 9.4: AUX Port Connection  
3. Configure Monitor Mode: Access the PLS command  
mode as described in Section 5.2. At the PLS> command  
prompt, type /M [Enter] to display the Monitor Mode  
Parameters Menu. Note that the Monitor Mode Parameters  
Menu is not available in User Mode. Set Monitor Mode  
Parameters as follows:  
a) Item 1 - Monitor Mode: On.  
Note: Do not enable the Monitor Mode until you  
have finished defining the other Monitor Mode  
parameters.  
b) Item 2 - Switch if Level: 0 - Low.  
c) Item 3 - Switch to Position: B.  
d) Item 4 - Delay Period: 1 Minute.  
e) Item 5 - Return: On (This will instruct the PLS to  
switch Circuit 1 back to the "A" position if the signal  
goes high again, and remains high for one minute.)  
f) Item 6 - Circuits to Switch: Enable the Monitor  
Mode at circuit 1.  
4. Set Circuit Parameters: From the PLS command prompt,  
type /P 1 [Enter] to display the Circuit 1 Parameters  
Menu. Use item 4 (Default Position) in the Circuit  
Parameters Menu to set the default state for Circuit 2 to  
"A".  
5. Operation: When the switch is open, the input level will  
remain high, and Circuit 1 will remain in the "A" position.  
If the switch closes for more than one minute, the input  
level will drop, and Circuit 1 will be automatically  
switched to the "B" position. If the switch returns to the  
open position, and remains open for one minute, then  
Circuit 1 will return to the "A" position.  
9-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10. Command Summary  
All PLS-345 commands conform to the following standards:  
· All commands normally begin with the "/" (foreword slash)  
character. If you wish to temporarily suppress command  
echo, use the "\" (backward slash) character instead of a  
forward slash.  
· All command lines are invoked by pressing the [Enter] key.  
· Both the System Level Password and User Level Password  
are case sensitive.  
10.1. Display Commands  
These commands are used to display the help screen, circuit  
status and network status.  
/H Display Help Screen  
Displays a Help Screen (Figure 3.2), which lists all available  
commands, along with a brief description of each command.  
Command Format: /H [Enter]  
Response: Displays Command Help Screen, followed by the  
PLS> command prompt.  
Command Availability: System and User.  
/S  
Display Circuit Status  
Displays a status screen (Figure 3.1), which lists the currently  
selected A/B line for each of the three circuits, and the selected  
values for features such as the Command Echo and Inactivity  
Timeout.  
Command Format: /S [Enter]  
Response: Displays Circuit Status Screen, followed by the PLS>  
command prompt.  
Command Availability: System and User.  
10-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
/SN Display Network Status  
Displays a status screen (Figure 6.2), which lists current network  
parameters, such as the TCB port, Telnet port, and network  
status.  
Command Format: /SN [Enter]  
Response: Displays Network Status Screen, followed by the  
PLS> command prompt.  
Command Availability: System and User.  
10.2. Configuration Commands  
These commands are used to access the configuration menus,  
which are used to select operating parameters for the PLS-345.  
/G  
View/Set General Parameters  
Displays the General Parameters Menu (Figure 5.2), which is  
used to define parameters such as the System and User  
Passwords, Site ID, Modem command strings, and other features.  
The General Parameters menu also includes an option which  
allows the user to set all parameters to their default values. For  
more information on the General Parameters Menu, please refer  
to Section 5.4.  
Command Format: /G [Enter]  
Response: Displays General Parameters Menu.  
Command Availability: System Only.  
/P [n]  
View/Set Circuit Parameters  
Displays the Circuit Parameters Menus (Figure 5.3), which are  
used to select operating parameters for each of the PLS-345's  
three switched circuits. For more information on the Circuit  
Parameters Menus, please refer to Section 5.5.  
Command Format: /P [n] [Enter]  
Where "n" is the common name or number of the circuit. For  
example, to configure Circuit 2, type /P 2 [Enter], or to  
configure a circuit named "vpn", type /P vpn [Enter]  
Response: Displays the Circuit Parameters Menus.  
Command Availability: System Only.  
10-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 10: Command Summary  
/N View/Set Network Parameters  
Displays the Network Parameters Menu (Figure 5.4), which is  
used to define the IP Address, Subnet Mask, Gateway Address  
and access the IP Security Menu. For more information on the  
Network Parameters Menu, please refer to Section 5.6.  
Command Format: /N [Enter]  
Response: Displays Network Parameters Menu.  
Command Availability: System Only.  
/M View/Set Monitor Mode Parameters  
Displays the Monitor Mode Parameters Menu (Figure 5.6), which  
is used to enable and configure the Monitor Mode feature. The  
Monitor Mode allows the PLS to perform automatic A/B  
switching, based on the signal level of an RS-2323 line or  
contact connected to the Monitor Input Port. For more  
information on the Monitor Mode, please refer to Section 5.7.  
Command Format: /M [Enter]  
Response: Displays Monitor Mode Parameters Menu.  
Command Availability: System Only.  
/DL Download Configuration to File  
Saves currently defined PLS configuration parameters to an  
ASCII file on your PC. This allows you to either "back-up"  
parameters as a safety measure, or download the parameters to  
another PLS-345 if several units will be configured with the  
same parameters. For more information on saving configuration  
parameters, please refer to Section 8.  
Command Format: /DL [Enter]  
Response: Prompts the user to configure terminal application to  
receive parameter file, waits for confirmation, and then  
downloads configuration parameters to an ASCII file on your  
hard drive when confirmation is given.  
Command Availability: System Only.  
10-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
10.3. Control Commands  
These commands are used to switch A/B lines at each circuit, set  
circuits to default status, and reset the network interface.  
/A <n> Switch Circuit "n" to Line "A"  
Switches the target circuit(s) to Line "A". Note that this  
command can be used to switch one circuit, a combination of  
circuits or all circuits to the "A" state. For more information,  
please refer to Section 7.2.1.  
Command Format: /A <n> [Enter]  
Where n is the number or common name of the target circuit,  
and can either indicate a single circuit, a combination of  
circuits, or all circuits as described in Section 7.2.1.  
Command Arguments:  
,y Suppress Confirmation (Sure) Prompt. For example,  
"/A 1,y" switches circuit 1 to Line "A" without  
displaying the confirmation prompt.  
Response: Displays message indicating circuit(s) to be  
switched, waits for user confirmation (unless suppressed),  
switches target circuit(s) to "A", then displays Status Screen.  
Command Availability: System and User.  
/B <n> Switch Circuit "n" to Line "B"  
Switches the target circuit(s) to Line "B". Note that this  
command can be used to switch one circuit, a combination of  
circuits or all circuits to the "B" state. For more information,  
please refer to Section 7.2.1.  
Command Format: /B <n> [Enter]  
Where n is the number or common name of the target circuit,  
and can either indicate a single circuit, a combination of  
circuits, or all circuits as described in Section 7.2.1.  
Command Arguments:  
,y Suppress Confirmation (Sure) Prompt. For example,  
"/B 1,y" switches circuit 1 to Line "B" without  
displaying the confirmation prompt.  
Response: Displays message indicating circuit(s) to be  
switched, waits for user confirmation (unless suppressed),  
switches target circuit(s) to "B", then displays Status Screen.  
Command Availability: System and User.  
10-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Section 10: Command Summary  
/D Set Circuits to Default  
Switches all PLS-345 circuits to their default A/B state. Note  
that the default A/B state is set using the Circuit Parameters  
Menu, as described in Section 7.2.2.  
Command Format: /D [Enter]  
Command Arguments:  
,y Suppress Confirmation (Sure) Prompt. For example,  
"/D,y" switches all circuits to their default states  
without displaying the confirmation prompt.  
Response: Displays message indicating that circuits will be set  
to defaults, waits for user confirmation (unless suppressed),  
switches all circuits to user-defined default positions, and then  
displays Status Screen.  
Command Availability: System and User.  
/T  
Reset Network Interface  
Terminates the Telnet connection and then resets the network  
interface.  
Note: In order to prevent remote users from being  
"locked out" of command mode, the /T command  
cannot be invoked via the Network Port. The  
Network Port is not allowed to reset itself.  
Command Format: /T [Enter]  
Command Arguments:  
,y Suppress Confirmation (Sure) Prompt. For example,  
"/T,y" resets the Network Port without displaying the  
confirmation prompt.  
Response: Displays message indicating that network port will  
be reset, waits for user confirmation (unless suppressed) and  
then resets network port.  
Command Availability: System and User  
10-5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
/X  
Exit/Disconnect  
Exits from command mode. When you have contacted the PLS  
via network, the unit will exit command mode and the network  
connection will be terminated. When you have contacted the  
PLS via modem, the unit will exit command mode and the  
modem will hang up. When you have contacted the PLS via a  
local PC connected to the PLS Console Port, the unit will exit  
command mode.  
Note: When communicating with the PLS, it is  
recommended to always disconnect using the /X  
command. If the /X command is not invoked at the  
end of a command session, then PLS will not exit  
from command mode until the No Activity Timeout  
feature closes the session. In this case, further  
access the PLS command mode will not be allowed  
until the current session times out.  
Command Format: /X [Enter]  
Command Arguments:  
,y Suppress Confirmation (Sure) Prompt. For example,  
"/X,y" will cause the PLS to exit the current command  
mode session without displaying the confirmation  
prompt.  
Response: Displays message indicating that you are about to  
exit command mode, waits for user confirmation (unless  
suppressed) and then exits from command mode.  
Command Availability: System and User.  
10-6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
A. Interface Descriptions  
A.1 Console Port Interface  
Figure A.1: Console Port Interface  
A.2 Modem Port Interface  
Figure A.2: Modem Port Interface  
Apx-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
A.3 Common Ports and A/B Ports  
Figure A.3: Common Ports and A/B Ports  
Apx-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendices  
B. Specifications  
Interface: RJ-45, three jacks, Cat5 compliant, capable of  
switching 10/100Base-T with minimum dB loss, 8 pins  
switched, Common Jack to "A" or "B" Jack.  
Contacts: High reliability, mechanical relays, break-before-  
make contacts with 1 amp @ 30 VDC rating, 100 million cycle  
life.  
Switching:  
Manual: Individual or ALL from front panel controls.  
Code: By circuit number or name.  
Network Port: 10BaseT Ethernet, RJ45.  
Console Port: RS-232, DB-9M, DTE pinout.  
Coding: Serial ASCII, 8 bits, no parity.  
Data Rate: 2400, 9600, 19.2K, 38.4K bps.  
Modem Port: RS-232, DB-9M, DTE pinout. Sends auto-setup  
command strings (user definable.)  
Memory: Non-volatile parameter storage.  
Size:  
Height: 1.75" (4.4 cm), 1 Rack Unit.  
Width: 19.00" (48.3 cm) with rack mounting.  
Depth: 6.75" (17.2 cm)  
Shipping Weight: 6.0 Lbs. (2.7 kg.)  
Power: IEC-320 inlet, 100/240 VAC, 50/60 Hz, 5 Watts.  
Operating Temperature: 32°F to 122°F (0°C to 50°C.)  
Humidity: 10 to 90% RH.  
Apx-3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
C. Customer Service  
Customer Service hours are from 8:00 AM to 5:00 PM, PST,  
Monday through Friday. When calling, please be prepared to  
give the name and make of the unit, its serial number and a  
description of its symptoms. If the unit should need to be  
returned for factory repair it must be accompanied by a Return  
Authorization number from Customer Service.  
WTI Customer Service  
5 Sterling  
Irvine, California 92618  
Local Phone: (949) 586-9950  
Toll Free Customer Service Line: 1-888-280-7227  
Customer Service Fax: (949) 457-8138  
Trademark and Copyright Information  
WTI and Western Telematic are trademarks of Western Telematic  
Inc.. All other product names mentioned in this publication are  
trademarks or registered trademarks of their respective  
companies.  
Information and descriptions contained herein are the property of  
Western Telematic Inc.. Such information and descriptions may  
not be copied, disseminated, or distributed without the express  
written consent of Western Telematic Inc..  
© Copyright Western Telematic Inc. 2002.  
Printed in the United States of America.  
June 2002  
Part Number: 13236 Revision: A  
Apx-4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Index  
#
D
Default A/B Position  
Default Command  
Default Parameters  
Default Position  
Delay Period  
Deny Access  
Disconnect  
Disconnect String  
Display Commands  
Download Parameters 8-1 to 8-2, 10-3  
100BaseT Networks  
2-3, 4-2  
6-2  
7-3, 10-5  
5-7  
A
A Name (To)  
A/B Lines  
A/B Settings  
A/B Switching  
Code Activated  
Manual  
5-8  
4-2  
5-9  
5-14  
5-11  
10-6  
6-1 to 6-2  
7-1 to 7-4, 10-4  
7-2  
7-1  
9-1  
Apx-2  
2-1  
5-6  
10-1 to 10-2  
Monitor Mode  
A/C/B Circuits  
A/C/B Indicators  
Application Examples  
Automated Mode  
E
9-1 to 9-4  
5-7  
Echo  
5-7  
9-1 to 9-4  
10-6  
Examples  
Exit  
External Modem  
Automatic A/B Switching 5-13 to 5-15  
4-2  
B
B Name (To)  
Back Panel  
Baud Rate  
5-9  
2-2 to 2-3  
5-6  
F
From  
Front Panel  
6-2  
2-1  
C
G
Circuit Default  
Circuit Indicators  
Circuit Name  
5-9  
2-1  
5-8  
6-1  
Gateway Address  
General Parameters Menu  
5-10  
5-5 to 5-7,  
10-2  
Circuit Number  
Circuit Parameters Menus  
Ground Line  
5-13  
5-8 to 5-9,  
10-2  
6-1 to 6-2, 10-1  
5-15  
H
Hardware  
Help Screen  
4-1 to 4-2  
10-1  
Circuit Status Screen  
Circuits to Switch  
I
Inactivity Timeout  
Indicator Lights  
Initialization  
Initialization String  
Installation  
Interface Descriptions  
IP Address  
Source  
Code Activated A/B Switching  
Command Confirmation  
Command Conventions  
Command Echo  
7-2  
5-7, 7-3  
5-4  
5-7  
2-1  
4-1  
5-6  
5-7  
Command Mode  
Local Access  
Modem Access  
Network Access  
Command Summary  
Common Line  
Common Name (From)  
Configuration  
Restore  
5-2 to 5-3  
5-2  
5-2  
5-3  
10-1 to 10-6  
4-1 to 4-2  
Apx-1  
4-2, 5-3, 5-10  
6-3  
5-10 to 5-12  
IP Security  
4-2  
5-8  
L
LED Indicators  
Local Access  
5-1 to 5-16  
8-2  
8-1  
2-1  
5-2  
4-2  
Save  
Local PC  
Configuration Commands 10-2 to 10-3  
Connectors  
Console Port  
Contact  
2-2  
2-3, 4-2, 5-2, Apx-1  
9-3  
Control Commands  
Customer Service  
10-4 to 10-6  
Apx-4  
Index-1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PLS-345 - Physical Layer Switch; User's Guide  
M
R
MAC Address  
Manual A/B Switching  
Manual Switch  
Master A/B Switch  
Menu Conventions  
Modem Access  
5-10, 6-3  
7-1  
2-2  
RDY Indicator  
Reset  
2-2  
4-1  
10-5  
5-15  
2-2  
Reset Network Interface  
Return  
RXD Indicator  
2-2  
5-4  
5-2  
S
Saving Parameters  
Security  
Modem Port 2-3, 4-2, 5-2, Apx-1  
Disconnect String 5-6  
8-1, 10-3  
5-5 to 5-6  
5-11 to 5-12  
5-1 to 5-16  
5-6, 6-1, 6-3  
6-3  
6-3  
Apx-3  
3-1 to 3-4  
6-3  
2-1, 2-2  
Initialization String  
Monitor Input  
Monitor Input Connector  
5-6  
5-13  
2-3  
Security Mask  
Set Up  
Site ID Message  
Source IP Address  
Source Port  
Specifications  
Start Up  
State  
Monitor Mode  
2-3, 5-13 to 5-15,  
6-2, 7-4, 9-1 to 9-4  
Contact  
Examples  
9-3  
9-2  
5-13  
5-13  
Hardware Configuration  
Parameters Menu  
Monitor Selector Switch  
Status LEDs  
2-3, 5-13,  
9-1  
9-1 to 9-2  
Status Screens 6-1 to 6-3, 10-1 to 10-2  
Subnet Mask  
Support  
Sure Prompt  
Switch  
5-10  
Apx-4  
5-7, 7-3  
9-3  
Monitoring Signal Drop  
N
Network Access  
5-3  
Network Parameters Menu 5-9 to 5-12,  
10-3  
Switch if Level  
Switch To Position  
Switching Commands  
System Mode  
System Overview  
System Parameters  
System Password  
5-14  
5-14  
7-2  
5-1  
Network Port  
Configuration  
Parameters  
2-3, 4-2, 5-3  
5-9  
5-12  
3-1 to 3-4  
5-5 to 5-7  
5-1, 5-5  
Reset  
10-5  
Network Status Screen  
Normally Closed  
Normally Open  
6-3, 10-2  
5-14, 9-3  
5-14, 9-3  
T
TCB  
6-3  
Apx-4  
5-3  
Technical Support  
Telnet Access  
Timeout  
O
ON Indicator  
Operation  
2-1  
7-1 to 7-4  
3-1 to 3-4  
5-7  
6-2  
Overview  
To  
P
Parameters  
Restore  
U
Upload Parameters  
User Mode  
5-1 to 5-16  
8-2  
8-1  
8-1 to 8-2  
5-1  
5-1, 5-6  
Save  
User Password  
Passwords  
System  
User  
5-1  
5-5  
5-6  
Permit Access  
Position  
Power Components  
5-11  
6-2  
2-3  
Q
Quick Start  
3-1 to 3-4  
Index-2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
5 Sterling  
(949) 586-9950  
Fax: (949) 583-9514  
·
Irvine  
Toll Free: 1-800-854-7226  
·
California 92618  
·
·
Download from Www.Somanuals.com. All Manuals Search And Download.  

Weed Eater Trimmer 530163408 User Manual
Weil McLain Boiler BCP 8S User Manual
West Bend Toaster Egg and Muffin Toaster User Manual
Western Telematic Switch APS 16M User Manual
Westinghouse Toaster WST3013ZE User Manual
Whirlpool Freezer EV130C User Manual
Whirlpool Range W10394387A User Manual
White Rodgers Smoke Alarm 3098 134 User Manual
Yamaha Electronic Keyboard CVP 501 User Manual
Zanussi Washer Accessories 641141 User Manual