USER MANUAL
Contents
1. from the MAC address table if they experience an inactivity of 8 minutes 6 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 12 6 3 LED STATUS MONITORS The Model IM1 l features two LEDs that monitor general operating status and the 10Base T twisted pair link integrity Figure 6 below shows the LEDs located directly beneath the RJ 45 jack Following Figure 6 is a description of each LEDs function Quik Connect Interface Module Cr LED Link LED V Interface Port Status Link Figure 6 Model IM1 l Panel 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 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 Detecte2. I trust that you find this user manual helpful 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 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 http www patton com Sales E mail sales patton com Support E mail support patton com Phone Sales 301 975 1000 Phone Support 301 975 1007 Fax 301 869 9293 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 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 16
3. Voltage Directive LVD of the Union European EU A Certificate of Compliance is available by contacting Patton Technical Support 1 3 SERVICE All warranty and nonwarranty repairs must be returned freight prepaid and insured to Patton Electronics All returns must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from Patton Electronics Technical Service at 301 975 1007 http www patton com support patton com NOTE Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Model IM 1 1 Technical Service hours 8AM to 5PM EST Monday through Friday WARNING 69 This device is not intended to be connected to the public telephone network 2 0 GENERAL INFORMATION 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 contact us at 301 975 1007 http www patton com support patton com 2 1 FEATURES e Installs in Patton s baseband modem CSU DSU 64k G 703 converter and fiber modem base units Provides MAC level connection between two peered Ethernet LANs PPP Point to Point Protocol RFC 166
4. that supports PPP bridging to function as a node on the remote Ethernet network The serial interface on the Cisco will have an IP address on the same Ethernet subnet as the bridge 5 Patton IM1 I Bridge Router E Internet 9 A A l Ethernet LAN Figure 2 Cisco router with serial interface configured as PPP Half Bridge For example the customer site is assigned the addresses 192 168 1 0 24 through 192 168 1 1 24 The address 192 168 1 1 24 is also the default gateway for the remote network The above settings remove any routing forwarding intelligence from the CPE The associated Cisco configuration will set serial interface SO to accommodate half bridging for the above example Authentication is optional under PPP In a point to point leased line link incoming customer facilities are usually fixed in nature therefore authentication is generally not required If the foreign device requires authentication via PAP or CHAP the PPP software will respond with default Peer ID consisting of the units Ethernet MAC address and a password which consists of the unit s Ethernet MAC address Some networking systems do not define network numbers in packets sent out over a network If a packet does not have a specific destination network number a router will assume that the packet is set up for the local segment and will not forward it to any other sub network However in cases where two devices need to communicate over the wid
5. 1 with Bridging Control Protocol RFC 1638 Operates transparently to higher level protocols such as TCP IP DECnet NETBIOS and IPX No configuration necessary Automatically discovers loads and deletes MAC addresses 512 KB on board RAM Modular 10Base T connection RJ 45 Two LED indicators status amp link integrity 2 2 DESCRIPTION The Patton IM1 1 QuikConnect Ethernet WAN bridge module installs in Patton s copper and fiber base units to provide seamless Ethernet LAN extension The Patton IM1 l performs the bridging function between two physically separate Ethernet LANs at the MAC level Operation of the Patton IM1 l is transparent to higher network level protocols such as TCP IP DECnet NETBIOS and IPX The Patton IM1 l is 802 3 compliant and supports PPP Point to point protocol with bridging control protocol RFC 1638 Once installed in the local Patton base unit the Patton IM1 l 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 l peered Ethernet LANs can be linked over leased 2 wire 4 wire DDS PCM and campus fiber circuits 2 3 TYPICAL APPLICATION The Model IM1 l QuickConnect is designed to plug directly into the rear of a Patton Electronics baseband modem i e Model 1090 or 1092 The Model IM1 l is design
6. USER MANUAL MODEL IM 1 1 Ethernet Bridge Module 5 Quik Connect Interface Module CJ Interface Port PE PATTON M ElecironicsTo ISO a ne SALES OFFICE MM i 301 975 1000 lilio Reken TECHNICAL SUPPORT 301 975 1007 An 180 9001 http www patton com Certified Company 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model IM1 1 components to be free from defects and will at our option repair or replace the product should it fail within one year from the first date of shipment This warranty is limited to defects in workmanship or materials and does not cover customer damage abuse or unauthorized modification If this product fails or does not perform as warranted your sole recourse shall be repair or replacement as described above Under no condition shall Patton Electronics be liable for any damages incurred by the use of this product These damages include but are not limited to the following lost profits lost savings and incidental or consequential damages arising from the use of or inability to use this product Patton Electronics specifically disclaims all other warranties expressed or implied and the installation or use of this product shall be deemed an acceptance of these terms by the user 1 1 RADIO AND TV INTERFERENCE The Model IM1 l generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the
7. d 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 Glows green to indicate good link integrity on the 10Base T twisted pair line 13 APPENDIX A PATTON MODEL IM1 l SPECIFICATIONS LAN Connection RJ 45 10Base T 802 3 Ethernet Protocol PPP RFC 1661 with Bridging Control Protocol RFC 1638 MAC Address Table Size 4096 entries MAC Address Aging MAC addresses deleted after 8 minutes inactivity On board Memory 512 KB RAM 128 KB FLASH Frame Latency 1 frame Interface card edge connection to QuikConnect port on Patton base unit LED Indicators 1 general status 1 link integrity Power Supply 5 Volts 510 mA supplied to module by connection to Patton QuikConnect interface Temperature Range 32 to 122 F 0 to 50 C Dimensions 2 9 x 3 2 7 4 cm x 8 1 cm Weight 0 25 Ib 0 11 kg 14 APPENDIX B IM1 1 INTERFACE PIN ASSIGNMENT 10BASE T Interface Pin Description ONOABRWN RJ 45 Female Connector DTE Configuration Signal TD data output from IM1 I TD data output from IM1 1 RD data input to IM1 1 no connection no connection RD data input to IM1 1 no connection no connection Copyright 2000 Patton Electronics Company All Rights Reserved 15 Dear Valued Customer Thank you for purchasing Patton Electronics products We do appreciate your business
8. e area bridging can be used to transport non routable protocols Figure 3 illustrates transparent bridging between two routers over a serial interface sO Bridging will occur between the two Ethernet Interfaces on Router A e0 and el Serial Interface Patton DSL Modem no ip routin wi p routing Router A Ethernet Interface interface EthernetO ip address 1 1 1 1 255 255 255 0 bridge group 1 Using Bridge Groups multiple S SP remote LANs can be bridged LI eT over the wide area interface Serial0 ip address 1 1 1 1 255 255 255 0 encapsulation PPP Router B Is bridge group 1 ME interface Serial1 T ip address 2 2 2 2 255 255 255 0 LAN LAN f f n bridge group 1 J lt 3 Serial Interface EVFE1 Link bridge 1 protocol ieee 6 4 0 CONFIGURATION The Model IM1 I module plugs into Patton s fiber and copper baseband modems to provide Ethernet LAN extension The IM1 l 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 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 NOTE The IM1 l only supp
9. ed to be used as one of a pair of units Figure 1 below illustrates a typical Model IM1 I installation Corporate Headquarters Ethernet WAN Bridge SS f QuikConnect Module 72 R Ed N gt gt a LAN DDS Network Model 2530 SS PCM Network Model 2073 L ah EI 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 E rn R ts at Ethernet WAN Bridge at QuikConnect Module Remote Satellite Office Figure 1 Typical Model IM1 I application 3 0 PPP OPERATIONAL BACKGROUND PPP is a protocol used for multi plexed transport over a point to point link PPP operates on all full duplex media and is a symmetric peer to peer protocol which can be broken into three main components 1 A standard method to encapsulate datagrams over serial links 2 A Link Control Protocol LCP to establish configure and test the data link connection 3 A family of Network Control Protocols NCPs to establish and configure different network layer protocols In order to establish communications over a point to point link each end of the PPP link must first announce its capabilities and agree on the parameters of the link s operation This exchange is facilitated through LCP Configure Request packets Once the link has been established and optional facilities have been negotiated PPP will attempt to establi
10. ght during the removal process 5 1 2 Installing the New QuickConnect Module 1 amp gt al 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 Hold the module with the faceplate toward you and align the module with the guide slots in the rear panel of the base unit 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 4 below shows how a Quick Connect Module plugs into the rear of the base unit Figure 4 Installation of Model IM 1 1 Plug in Serial Interface Module 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 4 3 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 To secure the module in place push the thumbscrews into the chassis and turn the screws clockwise to tighten 5 2 CONNECTING TO THE 10BASE T ETHERNET PORT The RJ 45 Ethernet port on Model IM1 l is designed to connect directly to a 10BaseT network Figure 5 below sh
11. manufacturer s instructions may cause interference to radio and television reception The Model IM1 l has been tested and complies with the limits for a Class A computing device in accordance with the specification in Subpart J of Part 15 of FCC rules that are designed to provide reasonable protection from such interference in a commercial installation However this is no guarantee that interference will not occur in a particular installation If the Model IM1 l does cause interference to radio or television reception which can be determined by disconnecting the unit the user is encouraged to try to correct the interference by one or more of the following measures moving the computing equipment away from the receiver reorienting the receiving antenna and or plugging the receiving equipment into a different AC outlet such that the computing equipment and receiver are on different branches In the event the user detects intermittent or continuous product malfunction due to nearby high power transmitting radio frequency equipment the user is strongly advised to use only a shielded twisted pair data cable that is bonded to metalized external outer shield plugs at both ends The use of a shielded cable satisfies compliance with the Electromagnetic Compatibility EMC directive 1 2 CE NOTICE The CE symbol on your Patton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility EMC directive and the Low
12. orts synchronous speeds 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 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 5 0 INSTALLATION The Model IM1 l is completely plug and play This section tells you how to make the connections 5 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 l module If your base unit does not have an existing QuickConnect already installed please skip to section 3 2 2 5 1 1 Removing the Existing QuickConnect Module 1 Turn the power switch off Leave the power cord plugged into a grounded outlet to keep the unit grounded 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 strai
13. ows the 10BaseT RJ 45 port pin description You may make connections up to 330 feet using Type 4 or 5 cable 1 TD data output from IM1 1 2 TD data output from IM1 1 ae RD data input to IM1 1 a no connection 8 5 no connection 7 6 RD data input to IM1 1 s m et no connection 8 no connection Figure 5 Model IM1 1 RJ 45 Connector Pinout 5 2 1 Connecting the 10Base T Ethernet Port to a Hub The Model IM1 l 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 IM1 I 10Base T Hub RJ 45 Pin No RJ 45 Pin No 1 TX 1 RX 2 TX 2 RX 3 RX 3 TX 6 RX 6 TX 5 2 2 Connecting the 10Base T Ethernet Port to a PC DTE The Model IM1 l 10Base T interface is configured as DTE Data Terminal Equipment If you wish to connect the IM1 l 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 1 TX 1 TX 2 TX 2 TX 3 RX 3 RX 6 RX 6 RX 10 5 3 CONNECTION TO THE LINE INTERFACE MEDIA Instructions for connecting the line interface media twisted pair or fiber o
14. ptic cable are contained within the base unit user manual Please refer to the base unit manual for connection details Notice Any terminal cable connected to the Model IM1 1 must be shielded cable and the outer shield must be 360 degree bonded at both ends to a metal or metalized backshell 5 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 WARNING The Model IM1 I interface card has been specifically designed to work with Ul 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 support patton com 11 6 0 OPERATION Once the Model IM1 1 is installed it should operate transparently This sections describes power up general operating instructions and the LED status monitors 6 1 OPERATING INSTRUCTIONS 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 l 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
15. sh a network protocol PPP will use Network Control Protocol NCP to choose and configure one or more network layer protocols Once each of the network layer protocols have been configured datagrams from the established network layer protocol can be sent over the link The link will remain configured for these communications until explicit LCP or NCP packets close the link down or until some external event occurs The PPP Bridging Control Protocol BCP defined in RFC 1638 configures and enables disables the bridge protocol on both ends of the point to point link BCP uses the same packet exchange mechanism as the Link Control Protocol LCP BCP is a Network Control Protocol of PPP bridge packets may not be exchanged until PPP has reached the network layer protocol phase 3 1 Applications In situations where a routed network requires connectivity to a remote Ethernet network the interface on a router can be configured as a PPP IP Half Bridge The serial line to the remote bridge functions as a Virtual Ethernet interface effectively extending the routers serial port connection to the remote network The bridge device sends bridge packets BPDU s to the router s serial interface The router will receive the layer three address information and will forward these packets based on its IP address Figure 2 shows a typical Cisco router with a serial interface configured as a PPP Half Bridge The router serial interface uses a remote device
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