Kingston Technology Switch KNE8TX WG User Manual

KINGSTON TECHNOLOGY  
EtheRx 4-PORT AND 8-PORT WORKGROUP  
100BASE-TX FAST ETHERNET HUBS  
USER’S GUIDE  
MODELS: KNE4TX/WG  
KNE8TX/WG  
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i
Kingston Technology’s  
EtheRx Workgroup  
4-Port and 8-Port  
100BASE-TX  
Fast Ethernet Hubs  
User’s Guide  
Part No. 4460057-001.A00  
Kingston Technology Company  
17600 Newhope  
Fountain Valley, CA 92708  
(714) 435-2600  
KNExTX/WG User’s Guide - Rev. A00  
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ii  
TABLE OF CONTENTS  
Introduction......................................................................................1  
Model Types......................................................................1  
Special Features ...............................................................2  
Package Contents.............................................................2  
Design Features..............................................................................3  
Repeater Functions...........................................................3  
Receive Jabber Protection ................................................3  
Collision-Handling .............................................................3  
Error-Handling...................................................................3  
Automatic Port Partitioning/Reconnection.........................3  
Hardware Installation.......................................................................4  
Front Panel........................................................................4  
Power LED..........................................................4  
Utilization LEDs...................................................5  
Collision LED ......................................................5  
4 or 8 UTP Port LEDs.........................................5  
Cascade Switch ..................................................6  
Rear Panel ........................................................................8  
4 or 8 UTP Ports.................................................8  
DC Power Connector..........................................8  
Appendices......................................................................................9  
Appendix A Pin Assignments .......................................10  
UTP Pin Assignments.......................................10  
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Appendix B Cabling Guidelines....................................11  
UTP Cable Wiring .............................................11  
Cable Wiring Standards ....................................11  
Rating Codes ....................................................13  
Appendix C Specifications............................................14  
Appendix D Commonly Asked Questions.....................16  
Appendix E Mounting Templates..................................17  
Appendix F Warranties and Notices.............................19  
Limited Warranty Statement..............................19  
Duration of Warranty.........................................19  
Free Technical Support.....................................20  
Disclaimers .......................................................20  
F.C.C. Certification............................................21  
CE Notice..........................................................21  
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Introduction  
1
Introduction  
Intended Audience: This manual assumes that the user has a general working  
knowledge of networking principles and architecture and is familiar with  
network systems in general.  
Congratulations on the purchase of your Kingston EtheRx WorkGroup (WG)  
series 100BASE-TX Fast Ethernet hubs. There are two models available in this  
series: KNE4TX/WG, which is the 4-Port model, and KNE8TX/WG, which is  
II  
the 8-Port model. The EtheRx Workgroup series hubs are Class  
repeaters  
that conform to IEEE 802.3u 100BASE-TX standards. Please refer to  
II  
Appendix D for further information on Class  
repeaters.  
The EtheRx Workgroup hubs support up to four (4) or eight (8) UTP  
(Unshielded Twisted-Pair) ports for 100BASE-TX network connections. Both  
models include a cascade switch on the last UTP port (Port 4 or Port 8) which  
supports both straight-through and crossover cable types. The UTP ports use  
dual-color LEDs to show three states of operation: link, activity and  
partition/error. The EtheRx hubs also include a collision LED for collision  
detection and five (5) utilization LEDs to display the level of network traffic in  
percentages of the total available bandwidth.  
For the remainder of this manual, the KNE4TX/WG (4-port model) and the  
KNE8TX/WG (8-port model) hubs will be referred to as the EtheRx hubs.  
KNE4TX/WG  
KNE8TX/WG  
4-Port 100BASE-TX Hub  
8-Port 100BASE-TX Hub  
Model Types  
I00BASE-TX Class  
UTIL  
Repeater  
EtheRx Workgroup  
PARTITION  
%
LINK  
/
ACTIVITY  
2
/
PWR  
COLL  
1
3
4
CASCADE  
1
1
2
2
5
5
0
6
0
KNE4TX/WG  
I00BASE-TX Class  
UTIL  
Repeater  
LINK  
EtheRx Workgroup  
%
/
ACTIVITY  
4
/
PARTITION  
PWR  
COLL  
1
2
3
5
6
7
8
CASCADE  
1
1
2
2
5
5
0
6
0
KNE8TX/WG  
Fig. 1-1 – KNE4TX/WG & KNE8TX/WG  
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2
Introduction  
Special Features  
II  
100BASE-TX Class  
compliant repeater  
Conforms to IEEE802.3u 100BASE-TX standard  
4 or 8 UTP ports for 100BASE-TX connections  
4 or 8 Link, Activity, and Partition/Error status LEDs for easy  
troubleshooting  
Utilization LEDs for displaying network traffic rates in percentages  
Power LED and Collision LED for collision detection  
Automatic Port Partitioning/Reconnection  
Uplink port that supports both crossover and straight-through cable wiring  
External auto-sensing power supply operating at 100-240VAC (50/60Hz)  
Desktop and Wall-mountable  
Package Contents  
EtheRx Workgroup hubs should contain the following items:  
EtheRx KNE4TX/WG or KNE8TX/WG Fast Ethernet hub  
(4) Rubber Feet  
External DC power supply  
Power cord  
User’s Guide  
If any of the items are missing or damaged, please contact your Kingston  
dealer for a replacement. Be sure the items you receive are genuine Kingston  
Technology products. If the Kingston name and logo are not on the front panel  
of the unit, it’s not a genuine Kingston product.  
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Design Features  
3
Design Features  
The EtheRx hub complies with the full set of repeater basic functions as  
defined by IEEE 802.3u. These functions include all Repeater Functions,  
Signal Regeneration, Receive Jabber Protection, Collision-Handling, Error-  
Handling, and Auto Partitioning/Reconnection.  
Repeater Functions  
If any single port senses the start of a valid packet on its receiving line, the  
EtheRx hub will re-transmit the received data to all other ports on the network.  
The re-transmission of packets complies with the IEEE 802.3u specification in  
terms of preamble structure, voltage amplitude, and timing characteristics.  
These timing regenerations prevent cumulative signal loss, jitters, and  
distortion caused by network cabling, thus allowing the EtheRx hubs to be  
II  
cascaded to other 100BASE-TX Class  
repeaters.  
Receive Jabber Protection  
The EtheRx hub provides a Receive Jabber Protection scheme to ensure that  
the network is not disabled due to reception of excessively long data packets.  
This protection scheme will automatically interrupt the receiver if the EtheRx  
hub has been continuously receiving for more than 65,536-bit times.  
Collision-Handling  
The EtheRx hub will detect and respond to collision conditions as outlined in  
the IEEE 802.3u specifications.  
Error-Handling  
The 100BASE-TX standard uses an improved method of error-handling called  
block coding. With 100BASE-TX Fast Ethernet, the new error-handling  
feature prevents substandard links from generating streams of false carrier and  
interfering with other links.  
Automatic Port Partitioning/Reconnection  
If any of the ports on the EtheRx hub experience excessive collisions, or faulty  
conditions, that particular port can be partitioned. Once partitioned, the hub  
will continue to monitor that port. If the error conditions have been corrected  
or a good data packet is received without a collision, the hub will automatically  
reconnect that port to the network.  
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Front Panel  
Hardware Installation  
Before you begin installing network cables, please take a few moments to  
familiarize yourself with the EtheRx hubs. The front and rear panels of the  
Fast Ethernet Workgroup hubs are illustrated below.  
Front Panel  
Utilization LEDs  
UTP Port LEDs  
I00BASE-TX Class  
UTIL %  
Repeater  
EtheRx Workgroup  
LINK / ACTIVITY / PARTITION  
PWR  
1
2
3
4
COLL  
CASCADE  
1
12  
25  
50  
60  
KNE4TX/WG  
Power LED  
Collision LED  
Cascade Switch  
Fig. 1-2 KNE4TX/WG Front Panel  
Utilization LEDs  
UTP Port LEDs  
I00BASE-TX Class  
UTIL %  
Repeater  
EtheRx Workgroup  
LINK / ACTIVITY / PARTITION  
PWR  
COLL  
1
2
3
4
5
6
7
8
CASCADE  
1
12  
25  
50  
60  
KNE8TX/WG  
Power LED  
Collision LED  
Cascade Switch  
Fig. 1-3 KNE8TX/WG Front Panel  
Power LED  
The green LED indicates the power status. The LED will light up when the unit  
is properly connected to the accompanying DC power supply. For further  
details, please refer to Figure 1-8 on page 8.  
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Front Panel  
5
Utilization LEDs  
The five Utilization LEDs display the rate of network traffic in percentages of  
the total available bandwidth. The amount of data traffic is measured in frames  
per second (FPS), then calculated into percentage values: 1%, 12%, 25%, 50%,  
and > 60%. The appropriate LED will light up based on network activity.  
Collision LED  
If a collision is detected on the network, the Collision LED will flash amber. A  
collision occurs when the hub receives data from two or more nodes  
simultaneously.  
4 or 8 UTP Port LEDs  
The LINK/ACTIVITY/PARTITION LEDs use two colors to display three  
states of operation for the 4 or 8 UTP ports. If a good link is established on any  
given port, the LED will light up steady green, indicating a valid network  
connection between the network node and the hub. If the LED does not  
display solid green indicating a good link, check the following:  
1.  
2.  
Make sure the power is turned on for both the PC and EtheRx  
hub.  
Verify the network adapter has loaded its drivers from the PC.  
Some network adapters require the drivers to be loaded to  
establish a proper link.  
3.  
4.  
Make sure the correct cable type is selected.  
Make sure the cable is wired properly and connected on both  
ends.  
5.  
If steps 1 thru 4 are correct, the cable may be defective or not  
wired correctly.  
Please refer to Appendix A for pin  
assignments and Appendix B for cabling guidelines.  
A flashing green light indicates when data is being received. A flashing amber  
light indicates one of the following occurences:  
1.  
2.  
A port has been partitioned due to an excessive number of  
collisions or  
A port has encountered errors due to invalid packets or jabber  
conditions.  
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Front Panel  
Cascade Switch  
The Cascade Switch provides cable wiring flexibility on the last UTP Port (i.e.,  
Port 4 or Port 8) for connecting to a workstation or cascading to another hub.  
By default, the last UTP port is set to “Crossover” (left side) as a standard,  
internally-crossed port, or MDI-X port. Depending on the wiring of your UTP  
cable (normally “Straight-Through”), the port is used to connect a workstation.  
II  
For cascading to another Class  
repeater using a straight-through cable,  
move the Cable Switch to “Straight-Through” (right side). If a crossover UTP  
II  
cable is used to cascade to another Class  
, leave the Cable Switch in  
repeater  
the “Crossover” position. See Figure 1-4 for a diagram showing the cascade  
switch settings. To verify the pin wiring of your UTP cable, refer to  
“Appendix B Cabling Guidelines” on page 11.  
Using a Straight-Through Cable  
Leave the cascade switch  
in the default crossover  
(MDI-X) position when  
connecting the last UTP  
port (port 4 or port 8) on  
the EtheRx Hub to a  
network card or router (or  
other MDI-configured  
device.)  
Move the cascade switch  
to the straight-through  
position when connecting  
the last UTP port (port 4  
or port 8) on the EtheRx  
Rx Workgroup  
Rx Workgroup  
II  
CASCADE  
Hub to another Class  
CASCADE  
repeater (or other MDI-X  
configured device.)  
Using a Crossover Cable  
Move the cascade switch  
to the straight-through  
position when  
connecting the last UTP  
port (port 4 or port 8) on  
the EtheRx Hub to a  
network card or router  
(or other MDI-configured  
device.)  
Leave the cascade switch  
in the default crossover  
(MDI-X) position when  
connecting the last UTP  
port (port 4 or port 8) on  
the EtheRx Hub to another  
Rx Workgroup  
Rx Workgroup  
CASCADE  
CASCADE  
II  
Class  
repeater (or other  
MDI-X configured device.)  
Fig. 1-4 Cascade Switch functions  
Notes on MDI and MDI-X Ports  
MDI (Media Dependent Interface) is the IEEE 802.3 standard for the interface  
to the UTP cable. For two 100BASE-TX devices to communicate with each  
other, the transmitter of one device must be connected to the receiver of the  
other device. This can be achieved by using a crossover cable, or by using one  
MDI-X port that implements the cross-over internally.  
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Front Panel  
7
Port 1 through Port 3 (or 7) respectively, like all normal hub ports, are  
configured MDI-X, whereas the last UTP ports, Port 4 or Port 8, support both  
port configurations, MDI and MDI-X. All NICs (Network Interface Cards) and  
Router ports are usually by default configured MDI. A simple illustration  
shows the relationship of cable types to port types:  
Switch  
Port  
For Connection to  
For Connection to a  
Position  
Config  
another Hub Port (MDI-X)  
Network Adapter (MDI)  
MDI-X  
MDI  
Use Crossover cable  
Use Straight-through cable  
Use Crossover cable  
Use Straight-through cable  
Table 1-1 Cascade Switch functions  
Maximum cable length between two  
II  
(2) cascaded Class  
repeaters  
5m (16.4ft)  
I
0
1
0
B
A
S
E
-
T
X
C
l
a
s
s
Repeater  
LINK  
EtheRx Workgroup  
I
0
1
0
B
A
S
E
-
T
X
C
l
a
s
s
Repeater  
LINK  
EtheRx Workgroup  
/
ACTIVITY  
4
/
PARTITION  
UTIL  
%
/
ACTIVITY  
4
/
PARTITION  
PWR  
UTIL  
%
PWR  
COLL  
1
2
3
5
6
7
8
CASCADE  
COLL  
1
2
3
5
6
7
8
CASCADE  
1
2
2
5
5
0
6
0
1
2
2
5
5
0
6
0
KNE8TX/WG  
KNE8TX/WG  
II  
II  
Class  
repeater  
Class  
repeater  
~
~
~
~
Maximum cable  
length from hub  
to node.  
Maximum cable  
length from hub  
to node.  
100m  
100m  
Node  
Node  
II  
Fig. 1-5 - Typical Class  
Repeater Cascade Configuration  
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Rear Panel  
Rear Panel  
5V 2A  
3
2
1
4
Fig. 1-6 KNE4TX/WG Rear Panel  
5V 2A  
8
7
6
5
3
2
1
4
Fig. 1-7 KNE8TX/WG Rear Panel  
4 or 8 UTP Ports  
The UTP ports are numbered 1 through 4 or 1 through 8 for 100BASE-TX  
connections. Since crossover function is implemented on all UTP MDI-X  
ports, a straight-through UTP cable should be used. (Note: Port 4 and Port 8  
support both cable types using the cascade switch. Refer to Appendix A & B  
for details on RJ-45 pin assignments and cable guidelines.  
DC Power Connector  
The EtheRx hub gets its power from the auto-sensing power supply. Insert the  
power jack into the DC power connector located to the far right. For safety  
purposes, ONLY use the included power supply for proper operation. The  
wrong type of power supply may cause damage to both the EtheRx hub and the  
power supply. (NOTE: The power supply output voltage is 5VDC/2.0A.  
Polarity on the power jack and DC power connector is negative (-) on the  
outside and positive (+) on the inside.)  
Rear Panel View  
5V 2A  
DC Power Jack  
DC Power Connector  
Fig. 1-8 DC Power Connector  
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Appendices  
9
Appendices  
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Appendix A Pin Assignments  
Appendix A Pin Assignments  
UTP Pin Assignments  
UTP Ports use RJ-45 Unshielded Twisted Pair (UTP) cabling. Cable Pin  
Numbers and Pin Wiring Assignments are listed below in Figure A-1 and Table  
A-2, respectively. Twisted-Pair cables can be wired with either Straight-  
Through or Crossover pin assignments. Both wiring schemes are mentioned in  
"Appendix B Cabling Guidelines" for reference in creating a twisted-pair cable.  
5V 2A  
3
2
1
1
2
3
4
5
6
7
8
Fig. A-1 RJ-45 Connector Pin Numbers  
Pin Number  
Function  
Transmit Data +  
Transmit Data -  
Receive Data +  
Not Used  
1
2
3
4,5  
6
Receive Data -  
Not Used  
7,8  
Table A-1 UTP Pin Assignments  
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Appendix B Cabling Guidelines  
11  
Appendix B Cabling Guidelines  
UTP Cable Wiring  
100BASE-TX unshielded twisted-pair cables can be wired as "Straight-  
Through" or, in some cases, "Crossover" depending on the application. For  
workstations connected to a hub, use "Straight-Through' wiring illustrated in  
Table B-1. In some instances, you may want to use "Crossover" wiring  
illustrated below in Table B-2.  
"Straight-Through"  
Cable Wiring  
Crossover”  
Cable Wiring  
Pin Number  
Pin Number  
Pin Number  
Pin Number  
1 (TRX +)  
2 (TRX -)  
3 (RCV +)  
6 (RCV -)  
4, 5, 7, 8  
1 (TRX +)  
2 (TRX -)  
3 (RCV +)  
6 (RCV -)  
Not Used  
1 (TRX +)  
2 (TRX -)  
3 (RCV +)  
6 (RCV -)  
4, 5, 7, 8  
3 (RCV +)  
6 (RCV -)  
1 (TRX +)  
2 (TRX -)  
Not Used  
Table B-1. Straight-Through Wiring  
Table B-2. Crossover Wiring  
Cable Wiring Standards  
There are two governmental agencies: the Electronic Industry Association  
(EIA) and the Telecommunications Industry Association (TIA), which set the  
standard for all cable wiring requirements for commercial buildings. For  
100BASE-TX networks, Category (CAT) 5 should be used.  
With the advent of 100Mbit network products, it is best to use higher quality  
CAT 5 cables like Belden or Helix as well as CAT 5-compliant patch panels  
and connectors while following the EIA/TIA wiring standards. 100 Ohm  
UTP/STP CAT 3, 4 & 5 type cables use 4-pair UTP wiring.  
Refer to the illustrations on page 12 for standard 100BASE-TX wiring and 4-  
pair 100Mbit wiring using either T568A (Table B-3) or T568B (Table B-4)  
wiring standards. Both T568A and T568B wiring configurations are  
compatible with 10BASE-T and 100BASE-TX and require no special hardware  
configurations. However, it is highly recommended that only one wiring  
scheme be used in premise wiring to avoid potential problems.  
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Appendix B Cabling Guidelines  
Pair 2  
Pair 3  
Pair 2 Pair 1 Pair 4  
Pair 3 Pair 1 Pair 4  
1 2 3 4 5 6 7 8  
1 2 3 4 5 6 7 8  
T568B  
T568A  
Fig. B-2 4-Pair T568B Wiring  
Fig. B-1 4-Pair T568A Wiring  
T568A  
Pin 1  
Pairs  
Pair 3  
Pair 3  
Strand  
Blue  
Solid  
T568B  
Pin 1  
Pairs  
Pair 2  
Pair 2  
Strand  
Black  
Solid  
White/Green  
Green/White  
White/Orange  
Orange/White  
Pin 2  
Orange  
Pin 2  
Yellow  
Pin 3  
Pin 4  
Pin 5  
Pin 6  
Pin 7  
Pin 8  
Pair 2  
Pair 1  
Pair 1  
Pair 2  
Pair 4  
Pair 4  
Black  
Red  
White/Orange  
Blue/White  
Pin 3  
Pin 4  
Pin 5  
Pin 6  
Pin 7  
Pin 8  
Pair 3  
Pair 1  
Pair 1  
Pair 3  
Pair 4  
Pair 4  
Blue  
Red  
White/Green  
Blue/White  
Green  
Yellow  
Brown  
White  
White/Blue  
Green  
Orange  
Brown  
White  
White/Blue  
Orange/White  
White/Brown  
Brown/White  
Green/White  
White/Brown  
Brown/White  
Table B-3 4-Pair T568A Wiring  
Table B-4 4-Pair T568B Wiring  
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Appendix B Cabling Guidelines  
13  
Rating Codes  
UTP cables meet different UL-NEC requirements based on cable-jacket  
quality. Below is an explanation of the rating codes for each cable type.  
UL – The National Electrical Code (NEC), published by the National Fire  
Protection Association (NFPA), details advisory safety considerations for  
electrical wiring. NEC Article 800 Communications Cables are manufactured  
to meet these different cable types.  
1. CMP – Cables meeting type CMP requirements are suitable for  
installation in ducts and plenums without the use of conduit. These cables  
are designed for fire resistance and low-smoke producing characteristics.  
2. CMR – Riser type cables are engineered to prevent the spread of fire from  
floor to floor and are suitable for vertical shaft applications.  
3. CM – Cables for general building wiring. CM cables are used in areas  
other than plenums and risers. These cables are resistant to the spread of  
fire and pass the UL 1581Vertical Tray Flame Test.  
4. MP, MPR & MPP – Within Article 800, the Multi-purpose Cables  
Category, allows conditional substitutions between different cable types &  
are restricted by number, AWG size and stranding of the cable  
conductors.  
Terms You Should Be Familiar With  
1. BACKBONE WIRING  
The physical/electrical interconnections  
between telecommunications closets and equipment rooms.  
2. COMPLIANCE – A wiring device that meets all characteristics of a  
standard is said to be in compliance with that standard.  
3. TWISTED PAIR (UTP) – Two insulated copper wires twisted around  
each other to reduce interference from one wire to the other. The twists  
are varied in length to reduce the potential for signal interference between  
pairs. Several sets of twisted pair wires may be enclosed in a single cable.  
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14  
Appendix B Cabling Guidelines  
4. NEAR-END CROSSTALK (NEXT) – In wires packed together within a  
cable, the signals generated at one end of the link can flush out the weaker  
signals coming back from the recipient.  
Appendix C Specifications  
EtheRx 4- and 8-Port Fast Ethernt Workgroup Hubs  
IEEE 802.3u 100BASE-TX Standard  
Compliance:  
Media Interface:  
KNE4TX/WG  
KNE8TX/WG  
Diagnostic LEDs:  
4 UTP ports for 100Mbps connections  
8 UTP ports for 100Mbps connections  
1 LED for Power Indicator (steady green)  
5 LEDs for Utilization status (steady green)  
1 LED for Collision Detection (flashing amber)  
1 LED for each port  
Link (steady green)  
Activity (flashing green)  
Partition / Error (flashing amber)  
RJ-45, Female  
Connection Type:  
Cable Type:  
Category 5 UTP 26 to 22 AWG  
Maximum Cable Length:  
II  
Cascading 2 Class  
5m (16.4ft)  
100m (328ft)  
repeaters (2 max.):  
Repeater to node  
Environmental:  
Operating Temp.  
Storage Temp.  
:
0°C to 45°C (32°F to 113°F)  
-20°C to 60°C (-4°F to 140°F)  
10% to 90% non-condensing  
Relative Humidity  
Electrical:  
Input Voltage:  
100VAC-240VAC, 50/60Hz  
Auto-sensing  
Output Voltage:  
Power Polarity:  
5VDC, 2A  
Power Consumption:  
KNE4TX/WG  
KNE8TX/WG  
Physical:  
4.5W  
8.5W  
Dimension (HxWxD):  
Weight:  
1.1” (28mm) x 6.5” (165mm) x 6.1” (155mm)  
1.9 lbs (0.86 kg)  
Certification:  
Kingston Technology Company  
KNExTX/WG User’s Guide - Rev. A00  
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Appendix D Commonly Asked Questions  
15  
EMI Standards:  
FCC Class A, CE CISPR A  
EMC Standards:  
Low Voltage Directive:  
EN55022, IEC801-2, IEC801-3, IEC801-4  
EN60950  
KNExTX/WG User’s Guide - Rev. A00  
Kingston Technology Company  
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16  
Appendix D Commonly Asked Questions  
Appendix D Commonly Asked Questions  
I
II  
100BASE-TX Fast Ethernet Repeaters  
Class  
vs. Class  
There are currently two classes of Fast Ethernet repeaters, defined as Class  
and Class II  
I
.
Class  
I
: in a maximum length segment topology, only one Class  
I
repeater may exist between any two nodes within a single  
collision domain.  
Class II : in a maximum length segment topology, two Class II  
repeaters may exist between any two nodes within a single collision  
domain.  
Will 100BASE-TX run on Category 3 cable?  
No! Category 3 (CAT 3) cabling even in short lengths generates too much near  
end crosstalk for 100BASE-TX networks. The IEEE 802.3u 100BASE-TX Fast  
Ethernet standard requires Category 5 100 UTP or 150 STP which  
complies with ISO/IEC 11801:1995.  
What is Category 5?  
Category 5 (CAT 5) is a further extension of the EIA/TIA-568 cabling system  
to 100 MHz. Category 5 components (i.e., UTP trunk and patch cables,  
modular plug, and patch panel, etc.) are defined by EIA/TIA-568, but with the  
characterizations extended to 100 MHz by TSB-36 and TSB-40. The cable  
grades are categorized as follows:  
Category 3: up to 16 MHz  
Category 4: up to 20 MHz.  
Category 5: up to 100 MHz.  
Kingston Technology Company  
KNExTX/WG User’s Guide - Rev. A00  
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Appendix D Commonly Asked Questions  
17  
Category 5 Compliance vs. Category 5 Performance?  
Having CAT 5 components in your network installation does not necessarily  
achieve full Category performance. To achieve any category-rated  
5
performance, make sure all cabling components are at least of the minimum  
category required.  
To achieve full CAT 5 performance, all components must be CAT 5 compliant  
and terminated properly according to EIA/TIA-568 TSB-36 and TSB-40  
guidelines.  
What are the Guidelines for Proper Termination?  
It is important to maintain the twists of the cable as close to the termination on  
the outlet as possible, to avoid NEXT (Near End Cross Talk) and to maintain  
the transmissions characteristics of the Category. Category specifications  
require that pair twisting be maintained to within the following distances from  
the outlet termination:  
Category 3 maximum allowed untwisting: 3 inches  
Category 4 maximum allowed untwisting: 1 inch  
Category 5 maximum allowed untwisting: 1/2 inch  
Can I mix CAT 3 and CAT 5 cabling in the same building?  
Yes, but keep in mind, you will not have CAT 5 performance. It is a good idea  
to keep the lines separated when installing any new lines. Use CAT 5 UTP  
cabling only.  
Can a Four-Pair CAT 5 cable support two 100BASE-TX  
devices?  
Although only two pairs are used in the standard four-pair CAT 5 UTP cable, it  
is not recommended because it exceeds the specifications outlined by IEEE  
802.3u.  
Appendix E Mounting Templates  
KNExTX/WG User’s Guide - Rev. A00  
Kingston Technology Company  
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18  
Appendix D Mounting Templates  
The EtheRx WorkGroup hubs can be stationed on a flat surface using the four  
rubber feet provided, or mounted vertically by using the mounting holes on the  
bottom side of the unit. The illustrations below detail the measurements and  
mounting holes and rubber feet locations. They are drawn to scale, although  
not actual size.  
Front Panel  
Rubber Feet  
1.08"  
Wall Mount Holes  
4.28"  
Rubber Feet  
Rear Panel  
6.44"  
Front Panel  
Rubber Feet  
This device complies with Part 15 of the FCC rules.  
Operation is subject to the following two conditions.  
Models:  
(1) This device may not cause harmful interference, and  
KNE4TX/WG  
(2) This device must accept any interference received;  
KNE8TX/WG  
including interference that may cause undesired  
operation.  
Operation  
&
Configuration Instructions  
UTP PORT STATUS LEDs (3-State)  
SOLID GREEN  
FLASH GREEN  
FLASH AMBER  
Good link is established  
Data is being received  
1. Port is partitioned due to excessive collisions, or  
2. Port has encountered errors due to invalid packets or  
jabber condition  
COLLISION STATUS LED  
FLASH AMBER  
Collision is detected  
UTILIZATION STATUS LEDs  
SOLID GREEN  
Network traffic rate is displayed in percentage  
PORT-4 OR PORT-8 CABLE-SELECTION SWITCH  
SWITCH  
POSITION  
PORT  
CONFIG.  
FOR CONNECTION TO  
ANOTHER MDI-X HUB PORT  
FOR CONNECTION TO  
A
NETWORK ADAPTER OR ROUTER  
MDI-X  
MDI  
Use cross-over cable  
Use straight-through cable  
Use straight-through cable  
Use cross-over cable  
For more detailed information, please refer to the User's Guide provided.  
P
/
N
:
5
5
5
0
1
4
7
-
0
0
1
.
A
0
0
Rubber Feet  
Rear Panel  
6.44"  
Fig. E-1 Mounting Template specifications  
Kingston Technology Company  
KNExTX/WG User’s Guide - Rev. A00  
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Appendix F Warranties and Notices  
19  
Appendix F Warranties and Notices  
Limited Warranty Statement  
KINGSTON TECHNOLOGY COMPANY ("Kingston") warrants that this product is free  
from defects in material and workmanship. Subject to the conditions and limitations set  
forth below, Kingston will, at its option, either repair or replace any part of this product  
which proves defective by reason of improper workmanship or materials. Repair parts or  
replacement products will be provided by Kingston on an exchange basis, and will be  
either new or refurbished to be functionally equivalent to new.  
This warranty does not cover any damage to this product which results from accident,  
abuse, misuse, natural or personal disaster, or any unauthorized disassembly, repair or  
modification.  
Duration of Warranty  
Lifetime Warranty: The following Kingston products are covered by this warranty for  
life: solid state memory (e.g., memory modules and boards), networking adapters,  
networking hubs without cooling fans (excluding the power supply), solid state PC Card  
(PCMCIA) adapters, and microprocessor upgrade products.  
Seven Year Warranty: The following Kingston products are covered by this warranty for  
a period of seven years from the date of original retail purchase: storage enclosures  
(including the power supply), cables, terminators, and accessories.  
Five Year Warranty: The following Kingston products are covered by this warranty for  
a period of five years from the date of original retail purchase: the power supply in  
networking hubs without cooling fans; and all other Kingston products (other than those  
products covered by a three-year, two-year, or one-year warranty, as provided below).  
Three Year Warranty: The following Kingston products are covered by this warranty for  
a period of three years from the date of original retail purchase: networking hubs with  
cooling fans (including the power supply).  
Two Year Warranty: The following Kingston products are covered by this warranty for a  
period of two years from the date of original retail purchase: Solid State Floppy Disk  
Cards (SSFDC), and Winchester hard disk drives in a 2.5 inch, 3.5 inch or 5.25 inch form  
factor.  
One Year Warranty: The following Kingston products are covered by this warranty for a  
period of one year from the date of original retail purchase: Winchester hard disk drives  
in a 1.8 inch form factor, optical storage products, and magnetic tape storage products.  
KNExTX/WG User’s Guide - Rev. A00  
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20  
Appendix F Warranties and Notices  
Warranty Claim Requirements  
To obtain warranty service, return the defective product, freight prepaid and insured, to  
your local authorized Kingston dealer or distributor, or to the Kingston factory service  
center located at 17600 Newhope Street, Fountain Valley, California 92708, U.S.A. You  
must include the product serial number (if applicable) and a detailed description of the  
problem you are experiencing. You must also include proof of the date of original retail  
purchase as evidence that the product is within the applicable warranty period. If you  
return the product directly to the Kingston factory, you must first obtain a Return  
Material Authorization ("RMA") number by calling Kingston Customer Service at  
(714) 438-1810, and include the RMA number prominently displayed on the outside of  
your package. Products must be properly packaged to prevent damage in transit.  
Free Technical Support  
Kingston provides free technical support. If you experience any difficulty during the  
installation or subsequent use of a Kingston product, please contact Kingston’s Technical  
Support department prior to servicing your system.  
Kingston Technical Support can be reached in the U.S. at (714) 435-2639 or toll-free at  
(800) 435-0640 (U.S. and Canada only). Kingston European Technical Support can be  
reached from within the U.K. at 01932 738858. Kingston provides other service numbers  
when calling from Germany 0130 115 639 or fax 0130 860 599, from Austria 0660 5569  
or fax 06 607 434, from Switzerland 0800 557 748 or fax 0800 552 182, from France  
0800 905 701 or fax 0800 900 910, or from Belgium (in English) 0800 72763.  
This warranty covers only repair or replacement of defective Kingston products, as  
provided above. Kingston is not liable for, and does not cover under warranty, any costs  
associated with servicing and/or the installation of Kingston products.  
Disclaimers  
The foregoing is the complete warranty for Kingston products and supersedes all  
other warranties and representations, whether oral or written. Except as expressly  
set forth above, no other warranties are made with respect to Kingston products and  
Kingston expressly disclaims all warranties not stated herein, including, to the  
extent permitted by applicable law, any implied warranty of merchantability or  
fitness for a particular purpose. In no event will Kingston be liable to the  
purchaser, or to any user of the Kingston product, for any damages, expenses, lost  
revenues, lost savings, lost profits, or any other incidental or consequential damages  
arising from the purchase, use or inability to use the Kingston product, even if  
Kingston has been advised of the possibility of such damages.  
Rev. 10/97  
Copyright © 1997 Kingston Technology Company. All rights reserved. Printed in the U.S.A. Kingston Technology  
and the Kingston logo are trademarks of Kingston Technology Company.  
Kingston Technology Company  
KNExTX/WG User’s Guide - Rev. A00  
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Appendix F Warranties and Notices  
19  
F.C.C. Certification  
This device has been tested and found to comply with limits for Class A digital  
device, pursuant to Part 15 of the FCC Rules. Operation is subject to the  
following two conditions:  
(1) This device may not cause harmful interference, and  
(2) This device must accept any interference received;  
including interference that may cause undesired  
operation.  
CE Notice  
The official CE symbol indicates compliance of this Kingston Technology  
product to the EMC directive of the European Community. The CE symbol  
found here or elsewhere indicates that this Kingston product meets or exceeds  
the following standards:  
EN50081-1  
“Electromagnetic Compatibility-generic emissions  
standard”  
EN55022: “Limits and methods of measurement of radio  
interference characteristics.”  
EN50082-1  
“Electromagnetic Compatibility-generic immunity  
standard”  
IEC 801-2: “Electrostatic discharge requirements”  
IEC 801-3: “Radiated immunity requirements”  
IEC 801-4: “Electrical fast transient requirements”  
EN60950  
“Low Voltage Directive (LVD)”  
Declaration of CE Conformity in accordance with the above standards  
has been made and is on file at Kingston Technology.  
KNExTX/WG User’s Guide - Rev. A00  
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