USER
MANUA L
MODEL IM 1/I
Ethernet Bridge Module
Part# 07MIM1I-D
Doc# 090101UD
Revised 7/29/99
SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
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2.0 GENERAL INFORMATION
2.3 TYPICAL APPLICATION
Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is
warranted for One Year parts and labor. If any questions or problems
arise during installation or use of this product, please do not hesitate to
The Model IM1/I QuickConnect™ is designed to plug directly into
the rear of a Patton Electronics baseband modem (i.e. Model 1090 or
1092). The Model IM1/I is designed to be used as one of a pair of
units. Figure 1 (below) illustrates a typical Model IM1/I installation.
Ethernet WAN Bridge
QuikConnect™ Module
Corporate Headquarters
2.1 FEATURES
• Installs in Patton’s baseband modem, CSU/DSU, 64k/G.703
converter and fiber modem base units
DDS Network
PCM Network
(Model 2530)
(Model 2073)
768k Leased Line (Model 1094)
512k Leased Line (Model 1093)
128k Leased Line (Model 1092)
64k Leased Line (Model 1090)
128k Single Fiber (Model 1184)
256k Single Fiber (Model 1185)
LAN
• Provides MAC level connection between two peered Ethernet
LANs
• Operates transparently to higher level protocols such as TCP/IP,
DECnet, NETBIOS and IPX
Ethernet WAN Bridge
QuikConnect™ Module
Remote/Satellite Office
• No configuration necessary
• Automatically discovers, loads and deletes MAC addresses
• 512 KB on-board RAM
LAN
• Modular 10Base-T connection (RJ-45)
• Two LED indicators: status & link integrity
2.2 DESCRIPTION
Figure 1. Typical Model IM1/I application
The Patton IM1/I QuikConnect™ Ethernet WAN bridge module
installs in Patton’s copper and fiber base units to provide seamless
Ethernet LAN extension. The Patton IM1/I performs the bridging
function between two physically separate Ethernet LANs at the MAC
level. Operation of the Patton IM1/I is transparent to higher network
level protocols such as TCP/IP, DECnet, NETBIOS and IPX.
Once installed in the local Patton base unit, the Patton IM1/I works
in a “plug and play” manner to forward LAN broadcasts, multicasts and
frames destined for the peered Ethernet LAN at the remote end (the
Patton base unit at the remote end must also be equipped with an IM1/I
module). Using the Patton IM1/I, peered Ethernet LANs can be linked
over leased 2-wire/4-wire, DDS, PCM and campus fiber circuits.
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3.0 CONFIGURATION
4.0 INSTALLATION
The Model IM1/I is completely plug and play. This section tells you
how to make the connections.
The Model IM1/I module plugs into Patton’s fiber and copper
baseband modems to provide Ethernet LAN extension. The IM1/I has
no switches or jumpers and does not need to be configured. However,
factors such as ty type of medium, throughput across the link and
clocking mode must be determined by the settings of the baseband
modems. Please refer to your baseband modem (i.e. 1092A, 1093,
1095, 1185, etc) to make the following settings.
4.1 INSTALLING THE QUICKCONNECT™ MODULE
Each Quick Connect Module™ has a 50-pin card edge connector
on one side and an ethernet interface on the other. The instructions
below describe how to remove the existing QuickConnect™ Module
and how to install the new IM1/I module. If your base unit does not
have an existing QuickConnect™ already installed, please skip to
section 3.2.2.
1) Bit Rate: The DTE rate setting of your base unit corresponds
to the throughput of your IM1/I bridge module. Use higher
speeds to allow maximum throughput to your extended LAN.
4.1.1 Removing the Existing QuickConnect™ Module
NOTE: The IM1/I only supports synchronous speeds.
1) Turn the power switch off. Leave the power cord plugged into a
grounded outlet to keep the unit grounded.
2) Clocking Mode: Set the clocking modes on the base units so
that one unit is configured for Internal clocking mode and the
other unit is set for Receive Recover clocking mode.
2) Loosen the two thumbscrews on the module by turning them
counterclockwise.
3) Grasp the two thumbscrews and gently pull the module from the
unit. Apply equal force to the thumbscrews to keep the module
straight during the removal process
BASE UNIT CLOCK MODES
Unit “A”
Unit “B”
Internal Clock Setting
Receive Recover Clock Setting
NOTE: Unit “A” and Unit “B” are arbitrarily chosen. It does not matter which
unit is “A”, and which is “B”.
3) All other base unit settings depend upon your application and
on the application medium (twisted pair or coaxial cable)
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3.1.2 Installing the New QuickConnect™ Module
4.2 CONNECTING TO THE 10BASE-T ETHERNET PORT
1) Make sure the power switch on the base unit is off. Leave the
power cord plugged into a grounded outlet to keep the unit
grounded.
The RJ-45 Ethernet port on Model IM1/I is designed to connect
directly to a 10BaseT network. Figure 3, below, shows the 10BaseT
RJ-45 port pin description. You may make connections up to 330 feet
using Type 4 or 5 cable.
2) Hold the module with the faceplate toward you and align the
module with the guide slots in the rear panel of the base unit.
1 TD+ (data output from IM1/I)
2 TD- (data output from IM1/I)
3 RD+ (data input to IM1/I)
4 (no connection)
5 (no connection)
6 RD- (data input to IM1/I)
7 (no connection)
3) While keeping the module’s faceplate parallel with the base unit
rear panel, slide the module straight in–so that the card edge
contacts line up with the socket inside the chassis. Figure 2
(below) shows how a Quick Connect Module plugs into the rear
of the base unit.
1
2
3
4
5
6
7
8
8 (no connection)
Figure 3. Model IM1/I RJ-45 Connector Pinout
4.2.1 Connecting the 10Base-T Ethernet Port to a Hub
e
The Model IM1/I 10Base-T interface is configured as DTE (Data
Terminal Equipment), just like a 10Base-T network interface card in a
PC. Therefore, it “expects” to connect to a 10Base-T Hub using a
straight-through RJ-45 cable. Use the diagram below to construct a
cable to connect the IM1/I to a 10Base-T Hub.
Interface Port
1 ON
0 OFF
IM1/I
RJ-45 Pin No.
1 (TX+)
10Base-T Hub
RJ-45 Pin No.
1 (RX+)
Figure 2. Installation of Model IM 1/I Plug-in Serial Interface Module
2 (TX-)
2 (RX-)
3 (RX+)
6 (RX-)
3 (TX+)
6 (TX-)
NOTE: The card edge connector should meet the socket when
it is almost all the way into the chassis. If you encounter a lot of
resistance, remove the module and repeat steps 2 & 3.
4.2.2 Connecting the 10Base-T Ethernet Port to a PC (DTE)
4) With the card edge contacts aligned with the socket, firmly seat
the module by using your thumbs to apply pressure directly to
the right and left edges of the module faceplate. Applying
moderate and even pressure should be sufficient to seat the
module. You should hear it “click” into place.
The Model IM1/I 10Base-T interface is configured as DTE (Data
Terminal Equipment). If you wish to connect the IM1/I to another DTE
device such as a 10Base-T network interface card in a PC, you must
construct a 10Base-T crossover cable as shown in the diagram below.
IM1/I
10Base-T DTE
RJ-45 Pin No.
RJ-45 Pin No.
5) To secure the module in place, push the thumbscrews into the
chassis and turn the screws clockwise to tighten.
1 (TX+)
2 (TX-)
1 (TX+)
2 (TX-)
3 (RX+)
6 (RX-)
3 (RX+)
6 (RX-)
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5.0 OPERATION
4.3 CONNECTION TO THE LINE INTERFACE MEDIA
Once the Model IM1/1 is installed, it should operate transparently.
This sections describes power-up, general operating instructions, and
the LED status monitors.
Instructions for connecting the line interface media (twisted pair , or
fiber optic cable) are contained within the base unit user manual.
Please refer to the base unit manual for connection details.
5.1 OPERATING INSTRUCTIONS
Notice! Any terminal cable connected to the Model IM1/I
must be shielded cable, and the outer shield must be 360
degree bonded–at both ends–to a metal or metalized backshell.
In order to operate, the Model IM1/I must be installed in the base
unit. It also requires a 10Base-T connection. After power is applied,
the IM1/I automatically starts performing the bridging function without
further user intervention. MAC addresses discovered are automatically
loaded into the MAC address table. They are automatically deleted
from the MAC address table if they experience an inactivity of 8
minutes.
4.4 CONNECTING TO AC OR DC POWER
Instructions for connecting the power supply Universal Interface
AC Power Supply and DC Power Supply option) are contained within
the base unit user manual. Please refer to the base unit manual for
connection details.
5.2 POWER-UP
Before applying power to the IM1/I, please be sure it is properly
installed in the base unit. Then make sure that unit is connected to the
appropriate power source (Universal Interface AC Power Supply or
DC Power Supply). Then power-up the base unit using the rear power
switch .
WARNING! The Model IM1/I interface card has been
specifically designed to work with UI and DC versions of
Patton Electronics base units. Use with 120/230VAC
versions could result in damage to the unit. If you are
unsure of your base unit power supply, please contact
Patton Electronics technical support at (301)975-1000 or at
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APPENDIX A
5.3 LED STATUS MONITORS
PATTON MODEL IM1/I SPECIFICATIONS
The Model IM1/I features two LEDs that monitor general operating
status and the 10Base-T twisted pair link integrity. Figure 4 (below)
shows the LEDs located directly beneath the RJ-45 jack. Following
Figure 4 is a description of each LEDs function.
LAN Connection:
RJ-45, 10Base-T, 802.3 Ethernet
4096 entries
MAC Address Table Size:
MAC Address Aging:
Quik-Connect Interface Module
MAC addresses deleted after 8 minutes
inactivity
On-board Memory:
Frame Latency:
Interface:
512 KB RAM; 128 KB FLASH
1 frame
Link LED
Status LED
Interface Port
card-edge connection to
QuikConnect™ port on Patton base
unit
Figure 4. Model IM1/I Panel
LED Indicators:
Power Supply:
(1) general status; (1) link integrity
Status
Blinks yellow from one to eleven times to indicate
system status. Each pulse pattern is separated by a
2 second “off” period. Greater pulse patterns have
higher priority (buffer saturation has greater priority
than an empty MAC table). Valid system statuses
are:
+5 Volts @ 510 mA supplied to module
by connection to Patton QuikConnect
interface
Temperature Range:
Dimensions:
Weight:
32 to 122ºF (0 to 50º C)
2.9" x 3.2" (7.4 cm x 8.1 cm)
0.25 lb (0.11 kg)
1 pulse = system status is okay
2 pulses = no MAC entries in the MAC Address Table
3 pulses = Clear to Send (CTS) or Carrier Detect
(DCD) from base unit are not asserted
4 pulses = IM1/I buffer is saturated
5 pulses = WAN receive frame(s) too large
6 pulses = WAN receive frame(s) not octet aligned
7 pulses = WAN receive frame(s) aborted
8 pulses = Detected WAN receive frame(s) with CRC
9 pulses = Detected LAN receive frame(s) too large
10 pulses = Detected LAN receive frame(s) not octet
aligned
11 pulses = Detected LAN receive frame(s) with bad
CRC
Link
Glows green to indicate good link integrity on the
10Base-T twisted pair line.
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Dear Valued Customer,
Thank you for purchasing Patton Electronics products! We do
APPENDIX B
IM1/I INTERFACE PIN ASSIGNMENT
appreciate your business. I trust that you find this user manual helpful.
10BASE-T Interface Pin Description
(RJ-45 Female Connector)
(DTE Configuration)
We manufacture one of the widest selections of data
communications products in the world including CSU/DSU's, network
termination units, powered and self-powered short range modems, fiber optic
modems, interface converters, baluns, electronic data switches, data-line surge
protectors, multiplexers, transceivers, hubs, print servers and much more. We
produce these products at our Gaithersburg, MD, USA, facility, and can
custom manufacture products for your unique needs.
Pin #
Signal
1
2
3
4
5
6
7
8
TD + (data output from IM1/I)
TD - (data output from IM1/I)
RD +(data input to IM1/I)
no connection
no connection
RD - (data input to IM1/I)
no connection
We would like to hear from you. Please contact us in any of the
following ways to tell us how you like this product and how we can meet your
product needs today and in the future.
Web:
(301) 975-1000
(301) 975-1007
(301) 869-9293
no connection
Sales E-mail:
Support E-mail:
Phone - Sales
Phone - Support
Fax:
Mail:
Patton Electronics Company
7622 Rickenbacker Drive
Gaithersburg, MD 20879 USA
We are committed to a quality product at a quality price. Patton
Electronics is BABT and ISO 9001 certified. We meet and exceed the highest
standards in the industry (CE, UL, etc.).
It is our business to serve you. If you are not satisfied with any
aspect of this product or the service provided from Patton Electronics or its
distributors, please let me know.
Thank you.
Burton A.Patton
Executive Vice President
P.S. Please tell us where you purchased this product.
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© Copyright 1998
Patton Electronics Company
All Rights Reserved
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