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Cabletron Systems CXRMIM Installation Manual

Repeater media interface modules
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REPEATER MEDIA INTERFACE MODULES

(TPRMIM/FORMIM/CXRMIM)
INSTALLATION GUIDE
CABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03866-5005

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Summary of Contents for Cabletron Systems CXRMIM

  • Page 1: Repeater Media Interface Modules

    REPEATER MEDIA INTERFACE MODULES (TPRMIM/FORMIM/CXRMIM) INSTALLATION GUIDE CABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03866-5005...
  • Page 3 Remote LANVIEW, LANVIEW, Multi Media Access Center and SPECTRUM are registered trademarks of Cabletron Systems, Inc. EMME, EMM-E6, RMIM, CXRMIM, TPRMIM, FORMIM, EPIM-A, EPIM-X, EPIM-F, EPIM-T, MMAC-3FNB, MMAC-5FNB, MMAC-8FNB, MMAC-M8FNB, IRM, IRM2, IRM3, and IRBM are trademarks of Cabletron Systems, Inc.

  • Page 4: Fcc Notice

    Notice FCC NOTICE This device complies with 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. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
  • Page 5 CABLETRON SOFTWARE PROGRAM LICENSE LICENSE. You have the right to use only the one (1) copy of the Program provided in this package subject to the terms and conditions of this License Agreement. You may not copy, reproduce or transmit any part of the Program except as permitted by the Copyright Act of the United States or as authorized in writing by Cabletron.

  • Page 6: United States Government Restricted Rights

    7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867. SAFETY It is the responsibility of the person who sells the system to which the TPRMIM, FORMIM, CXRMIM or EPIMs will be a part to WARNING ensure that the total system meets allowed limits of conducted and radiated emissions.

  • Page 7: Table Of Contents

    Installing the RMIM into the MMAC ... 3-5 3.3.1 Installing an EPIM ... 3-7 Connecting the RMIM/EPIM to the Network... 3-9 3.4.1 Attaching Thin-Net Segments to the CXRMIM ... 3-9 3.4.2 Connecting a Thin-Net Segment to an EPIM-C ... 3-10 Installation Guide CONTENTS...
  • Page 8 Contents 3.4.3 Attaching a Twisted Pair Segment to the TPRMIM-20/22 ...3-12 3.4.4 Attaching a Twisted Pair Segment to the TPRMIM-33/36 ...3-13 3.4.5 Connecting a Twisted Pair Segment to an EPIM-T ...3-14 3.4.6 Connecting a Fiber Optic Link Segment to a FORMIM, EPIM-F1, EPIM-F2, or EPIM-F3 ...3-16 3.4.7 Connecting an AUI Cable to an EPIM-A...

  • Page 9: Chapter 1 Introduction

    EPIM slot. The TPRMIM-36 has two 50-pin champ connectors providing twenty-four 10BASE-T twisted pair ports, one AUI connector, and one EPIM slot. • CXRMIM™ – The CXRMIM is equipped with twelve 10BASE-2 coaxial connectors and one EPIM slot. • FORMIM-22™ – The FORMIM-22 is equipped with twelve FOIRL/10BASE-FL ports with ST type connectors.

  • Page 10: Using This Manual

    Chapter 1: INTRODUCTION 1.1 USING THIS MANUAL Read this manual to gain a full understanding of the features and capabilities of the Cabletron Systems RMIMs. You should have a general working knowledge of Ethernet or IEEE 802.3 type data communications networks and their physical layer components before installing the RMIMs.

  • Page 11: Rmim Overview

    RMIMs also have a Fault Isolation feature that automatically segments problem ports from the network. When the problem port receives a good packet, the RMIM automatically reconnects the port to the network. FORMIM-22 CXRMIM ETHERNET ETHERNET FOIRL/10BASE-FL 10BASE-2...

  • Page 12: Rmim Features

    Chapter 1: INTRODUCTION 1.4 RMIM FEATURES Repeater Functionality The RMIM IEEE 802.3 compliant repeater provides the MMAC with the ability to achieve maximum length data paths on each Ethernet network. To attain these maximum length data paths, the RMIM retimes data packets and regenerates the preamble of each data packet that enters the MMAC.
  • Page 13 Remote Network Management Capabilities You can manage the RMIMs remotely by any SNMP network management system. Cabletron Systems offers the following remote management packages: • Cabletron Systems SPECTRUM • Cabletron Systems Remote LANVIEW • SPECTRUM Portable Management Applications Ethernet Port Interface Modules Cabletron Systems’...

  • Page 14: The Multimedia Access Centers With Fnb

    Chapter 1: INTRODUCTION 1.5 THE MULTI MEDIA ACCESS CENTERS WITH FNB Cabletron Systems Multi Media Access Center with Flexible Network Bus (MMAC/FNB) provides three separately repeated Ethernet segments: Ethernets A, B, and C. The Cabletron Systems non-repeating Media Interface Modules (MIMs) operate on Ethernet A, while the RMIMs are designed to operate on Ethernet segments B and C.
  • Page 15 Ethernet channels B and C transmit and receive packets over the Repeater Interface Controller (RIC) management bus on the FNB to Cabletron Systems RMIMs (TPRMIM, FORMIM, and CXRMIM). RMIMs can repeat packets autonomously without channeling them through the EMME. Two redundant AUI ports on the EMME’s front panel let you access Ethernet channel D.

  • Page 16: The Emm-E6

    Ethernet channels B and C transmit and receive packets over the Repeater Interface Controller (RIC) management bus on the FNB to Cabletron Systems RMIMs (TPRMIM, FORMIM, and CXRMIM). RMIMs can repeat packets autonomously without channeling them through the EMM-E6. The EMM-E6 provides two slots for optional EPIMs on the front panel. The EPIMs provide an Ethernet D channel for various transmission media connections (twisted pair, fiber optic, and thick or thin Ethernet coaxial cable).

  • Page 17: Related Manuals

    RELATED MANUALS 1.8 RELATED MANUALS The manuals listed below should be used to supplement the procedures and other technical data provided in this manual. The procedures in them will be referenced, where appropriate, but will not be repeated. Cabletron Systems’ Multi Media Access Center (MMAC-M8FNB, MMAC- 5FNB, MMAC-M3FNB) Overview and Set Up Guide Cabletron Systems’...
  • Page 18 Chapter 1: INTRODUCTION 1-10 Repeater MIM...
  • Page 19 The following sections describe cable requirements for each media type. 2.1.1 10BASE-2 Thin-Net Network Requirements When connecting a 10BASE-2 thin-net coaxial segment to the CXRMIM or EPIM-C, your network must meet the following requirements: Cable Type 50 ohm RG-58A/U type coaxial cable must be used when making up a thin-net cable segment.

  • Page 20: Chapter 2 Installation Requirements And Specifications

    The BNC ports of WARNING the CXRMIM are connected to earth ground, eliminating the need of grounding the segments connected to the BNC ports. The EPIM- C provides a switch to select either internal or external termination.

  • Page 21: Network Cable Requirements

    NETWORK CABLE REQUIREMENTS Shielded twisted pair cables, such as IBM Type 1 cable, can also be used. You should remember that the impedance of IBM Type 1 cable is typically 150 ohms. This increases the signal reflection caused by the cable, but since the cable is shielded, this signal reflection has little effect on the received signal’s quality due to the lack of crosstalk between the shielded cable pairs.

  • Page 22: Foirl/10Base-Fl Multimode Fiber Optic Network Requirements For The Formim

    Chapter 2: INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.1.3 FOIRL/10BASE-FL Multimode Fiber Optic Network Requirements for the FORMIM When connecting a multimode fiber optic segment to a FORMIM-22, EPIM-F1, or EPIM-F2, your network must meet the following requirements: Table 2-1. Multimode Fiber Optic Cable Specifications Cable Type 50/125 m 62.5/125 m...

  • Page 23: Foirl/10Base-Fl Single Mode Fiber Optic Network Requirements For The Formim

    2.1.4 FOIRL/10BASE-FL Single Mode Fiber Optic Network Requirements for the FORMIM When connecting a single mode fiber optic segment to an EPIM-F3, your network must meet the following requirements: Table 2-2. Single Mode Fiber Optic Cable Specifications Cable Type 8/125-12/125 m Attenuation You must test the fiber optic cable with a fiber optic attenuation test set adjusted for a 1300 nm wavelength.

  • Page 24: Transceiver/Aui Requirements For The Tprmim-36

    Chapter 2: INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.1.5 Transceiver/AUI Requirements for the TPRMIM-36 To connect external network segments to the EPIM-A, EPIM-X, or the AUI port on the TPRMIM-36, you need an AUI cable. The TPRMIM-36 and EPIM-A require a transceiver to connect to the segment. The EPIM-X has built-in dual transceivers and can be connected directly to the segment.

  • Page 25: Rmim Network Port Specifications

    2.2 RMIM NETWORK PORT SPECIFICATIONS The following sections provide port specifications for each RMIM. 2.2.1 TPRMIM-20/22 RJ45 Connector Specifications The TPRMIM-20 and the TPRMIM-22 provide RJ45 connectors to attach twisted pair segments to the network. Figure 2-1 shows the pinouts for the RJ45 connectors.
  • Page 26 Chapter 2: INSTALLATION REQUIREMENTS/SPECIFICATIONS Table 2-3. 50-Pin Champ Connector Pinouts Signal Wire Color RX 1- Blue/White TX 1- Orange/White RX 2- Green/White TX 2- Brown/White RX 3- Gray/White TX 3- Blue/Red RX 4- Orange/Red TX 4- Green/Red RX 5- Brown/Red TX 5- Gray/Red RX 6-...

  • Page 27: Cxrmim Coaxial Connector Specifications

    2.2.3 CXRMIM Coaxial Connector Specifications Connector Type The CXRMIM is equipped with BNC receptacles, with a gold center contact, for use with BNC type tee-connectors and RG-58 thin-net cable. Thick coaxial cable may be used with a thick to thin barrel connector.
  • Page 28 Chapter 2: INSTALLATION REQUIREMENTS/SPECIFICATIONS The transmitter power levels and receive sensitivity levels given in Figure 2-3 are Peak Power Levels after optical overshoot. You must NOTE use a Peak Power Meter to correctly compare the values given above to those measured on any particular port. If you measure power levels with an Average Power Meter, then 3 dBm must be added to the measurement to correctly compare those measured values to the values listed (i.e., -30.5 dBm peak = -33.5 dBm...

  • Page 29: Operating Specifications

    2.3 OPERATING SPECIFICATIONS The section provides operating specifications for the RMIMs. Cabletron Systems reserves the right to change these specifications at any time without notice. REPEATER FUNCTIONALITY Preamble Input: Output: JAM Output: Minimum Packet: FAULT Protection: Installation Guide OPERATING SPECIFICATIONS Minimum of 40 bits.
  • Page 30 TPRMIM-33 Twisted TPRMIM-36 Pair to TPRMIM-20 Twisted TPRMIM-22 Pair Twisted Pair to EPIM/AUI EPIM/AUI to Twisted Pair CXRMIM Coaxial to Coaxial Coaxial to EPIM EPIM to Coaxial FORMIM-22 Fiber Optic Fiber Optic 2-12 Start of Collision to Packet 1.02 s 1.26 s...
  • Page 31 OPERATING SPECIFICATIONS Table 2-6. LED Descriptions When lit, indicates that the RMIM is operating on either the Ethernet B or CXRMIM C channel on the FNB. If neither of FORMIM the LEDs are lit, the RMIM is in stand-alone mode.
  • Page 32 Chapter 2: INSTALLATION REQUIREMENTS/SPECIFICATIONS ENVIRONMENTAL REQUIREMENTS Operating temperature: Non-operating temperature: Operating humidity: PHYSICAL Dimensions: 2-14 +5 to +40 C (41 to 104 F) -30 to +80 C (-22 to 176 F) 5 to 95% (non-condensing) 34.04 D x 29.21 H x 5.08 W cm (13.4 D x 11.5 H x 2.0 W in) Repeater MIM...

  • Page 33: Chapter 3 Installing The Rmim

    This chapter explains how to set the RMIM jumpers and install RMIMs into the MMAC/FNB. It also provides instructions for connecting network segments to the RMIM ports and to the available Ethernet Port Interface Modules (EPIMs). Ensure that your network meets the guidelines and requirements listed in Chapter 2, Installation Requirements/Specifications, before installing the RMIMs.
  • Page 34 3.2 SETTING THE RMIM JUMPERS Each RMIM has two Ethernet jumpers and one Unmanaged Module Group (Subnet) jumper. Figure 3-1 shows the location and jumper number for each RMIM. Ethernet Jumpers JP1 (CXRMIM, FORMIM) JP6 (TPRMIM-20/22/33/36) ETH. B ETH. C ETHERNET JUMPER SETTINGS STND ALONE ETH.

  • Page 35: Setting The Ethernet Jumpers

    3.2.1 Setting the Ethernet Jumpers The Ethernet jumpers determine how your RMIM operates on the network. You can set the jumpers so that the RMIM operates on Ethernet B, Ethernet C, or in stand-alone mode. Refer to Figure 3-1 and configure the RMIM jumpers as follows: •...
  • Page 36 1. On only one RMIM, (even if more than one RMIM is to be in this group) place the subnet jumper (JP8 on the TPRMIMs or JP4 on the CXRMIM and FORMIM) in the ENABLE position as shown in Figure 3-1.

  • Page 37: Installing The Rmim Into The Mmac

    3.3 INSTALLING THE RMIM INTO THE MMAC The RMIM must be installed in an MMAC equipped with a Flexible Network Bus (either an MMAC-3FNB, MMAC-5FNB or an MMAC-8FNB). The FNB is a full-height, full-width backplane that links Cabletron Systems Ethernet, FDDI or Token Ring products. Upgrades kits for NOTE MMAC-3s and MMAC-8s (without an FNB) are currently available.
  • Page 38 Chapter 3: INSTALLING THE RMIM Cabletron has designed the RMIMs to be easily installed into the MMAC/FNB. When you install the module, the following guidelines must be followed: • You cannot install the RMIM into Slot 1 (first slot), which is reserved for the Ethernet Management Module (EMME or EMM-E6), the IRM, IRM2, IRM3, or IRBM.

  • Page 39: Installing An Epim

    3.3.1 Installing an EPIM The CXRMIM and the TPRMIMs provide a slot for one of Cabletron’s Ethernet Port Interface Modules (EPIMs). EPIMs allow you to connect a variety of media to your RMIM. This section explains how to install an EPIM into an RMIM.
  • Page 40 Chapter 3: INSTALLING THE RMIM Figure 3-4. Installing an EPIM Repeater MIM...

  • Page 41: Connecting The Rmim/Epim To The Network

    10BASE-5 coaxial segments. Connect the thin-net segment to the CXRMIM as follows: Attach the thin-net segment to each of the CXRMIM BNC ports as shown in Figure 3-5. Line up the slots with the pins, push the connector in, and turn clockwise to lock on.

  • Page 42: Connecting A Thin-Net Segment To An Epim-C

    Chapter 3: INSTALLING THE RMIM 3.4.2 Connecting a Thin-Net Segment to an EPIM-C To connect a thin-net segment to an EPIM-C: 1. Set the Internal Termination Switch (Fig. 3-6), located to the right of the port and labeled TERM, to: •...
  • Page 43 CONNECTING THE RMIM/EPIM TO THE NETWORK When internal termination switch is set to OFF: Connect BNC tee-connector to port. Attach a terminator or terminated thin-net segment to one female connector of tee-connector. Connect a terminated thin-net segment to other female connector of tee-connector.

  • Page 44: Attaching A Twisted Pair Segment To The Tprmim-20/22

    Chapter 3: INSTALLING THE RMIM 3.4.3 Attaching a Twisted Pair Segment to the TPRMIM-20/22 The TPRMIM-20 has nine RJ45 unshielded twisted pair ports (UTP) and the TPRMIM-22 has twenty-one RJ45 UTP ports. The TPRMIM-20 and TPRMIM-22 have a Polarity Correction and Detection feature which allows packets to pass even if the polarity of the twisted pairs segment’s receive link is reversed.

  • Page 45: Attaching A Twisted Pair Segment To The Tprmim-33/36

    CONNECTING THE RMIM/EPIM TO THE NETWORK 3.4.4 Attaching a Twisted Pair Segment to the TPRMIM-33/36 The TPRMIM-33 has a 50-pin Champ connector and the TPRMIM-36 has two 50- pin Champ connectors. This configuration of the TPRMIM allows you to run a 50- pin feeder cable from the TPRMIM to a Punch Down block.

  • Page 46: Connecting A Twisted Pair Segment To An Epim-T

    Chapter 3: INSTALLING THE RMIM To connect the TPRMIM-33/36 into an existing twisted pair wiring system: 1. Connect a 50-pin feeder cable to the Champ connector on the TPRMIM. See Figure 3-9. 2. Attach the feeder cable to the Punch Down Block, or patch panel. If using a TPRMIM-36, a second 50-pin feeder cable can be connected to the RMIM.
  • Page 47 CONNECTING THE RMIM/EPIM TO THE NETWORK Position X (crossed over) 1. RX+ 5. NC 2. RX- 6. TX- 3. TX+ 7. NC 4. NC 8. NC Figure 3-10. Connecting a Twisted Pair Segment to an EPIM-T To connect an EPIM-T to a Twisted Pair Segment: Connect the twisted pair segment (Fig.

  • Page 48: Connecting A Fiber Optic Link Segment To A Formim, Epim-F1, Epim-F2, Or Epim-F3

    Chapter 3: INSTALLING THE RMIM 3.4.6 Connecting a Fiber Optic Link Segment to a FORMIM, EPIM-F1, EPIM-F2, or EPIM-F3 When connecting a fiber optic link segment to a FORMIM, EPIM-F1 or an EPIM-F2, you must keep the following in mind: •...
  • Page 49 CONNECTING THE RMIM/EPIM TO THE NETWORK Do not touch the ends of the fiber optic strands, and do not let the ends come in contact with dust, dirt, or other contaminants. Contamination of the ends can cause problems in data CAUTION transmissions.
  • Page 50 Chapter 3: INSTALLING THE RMIM SMA 905 Connectors Figure 3-11. Connecting a Fiber Optic Link Segment to a FORMIM, EPIM-F1, EPIM-F2, or EPIM-F3 3-18 FORMIM-22 ST Fiber Optic Ports ST Connectors EPIM-F1/F2 With ST Fiber Optic Connectors ST Connectors EPIM-F1/F2 SMA 906 Connectors w/ Half Alignment Sleeves EPIM-F3...

  • Page 51: Connecting An Aui Cable To An Epim-A Or Epim-X

    CONNECTING THE RMIM/EPIM TO THE NETWORK 3.4.7 Connecting an AUI Cable to an EPIM-A or EPIM-X The EPIM-A allows you to connect the module to a variety of Ethernet transmission media via an external transceiver, including twisted pair, fiber optic, and/or thick or thin Ethernet coaxial cable.
  • Page 52 Chapter 3: INSTALLING THE RMIM 4. If using an EPIM-X, connect the female end of the cable to the EPIM-X and the male end to the AUI connector on the device. 5. Move the slide latch on the AUI Port to secure it to the lock post on the AUI connector.

  • Page 53: Chapter 4 Testing The Rmims

    (Fig. 4-1). Install the EMME or EMM-E6 and the RMIM (TPRMIM, FORMIM, or CXRMIM) into a stand-alone MMAC/FNB. Connect the first workstation to either the RMIM, using the appropriate cable and transceiver, or to the EMME/EMM-E6 via the active repeater port, using a transceiver and the appropriate cable.

  • Page 54: Installation Check-Out

    Chapter 4: TESTING THE RMIMS If using UNIX RMIM is operating properly. NOTE Figure 4-1. Pre-installation Test 4.2 INSTALLATION CHECK-OUT After the EMME/EMM-E6 is connected to the network, verify that packets can be passed between the two Ethernet network segments via the EMME/EMM-E6. Again you can use two workstations set up as file server and client.

  • Page 55: Installation Guide

    After the EMME/EMM-E6 and RMIM are installed in the MMAC, connect the server workstation to either the RMIM, using the appropriate cable and transceiver, to the EMME AUI port using a transceiver and an AUI cable, or to the EMM-E6 EPIM port using a transceiver and the appropriate cable. Going to each node connected to the MMAC, connect the client workstation and proceed to test the segment.
  • Page 56 TPRMIM-20/22 (Power) Table 4-1. LANVIEW LEDs When lit, indicates that the RMIM is operating on either the Ethernet B CXRMIM or C channel on the FNB. If neither FORMIM of the LEDs are lit, the RMIM is in stand-alone mode.
  • Page 57 FORMIM-22 ETHERNET Installation Guide CXRMIM TPRMIM-33 ETHERNET TPRMIM-20 TPRMIM-22 ETHERNET Figure 4-3. RMIM LEDs INSTALLATION CHECK-OUT TPRMIM-36 ETHERNET ETHERNET RCV POK RCV POK ETHERNET RCV POK...
  • Page 58 Chapter 4: TESTING THE RMIMS Figure 4-4. EPIM LEDs Repeater MIM...
  • Page 59 TWISTED PAIR WIRING TABLES This appendix contains twisted pair wiring tables which will assist you if you are using a Punch Down Block (see Figure A-1 on page A-9) to wire your twisted pair segments. The following tables are included in this appendix: •...
  • Page 60 Appendix A: Twisted Pair Wiring Tables Table A-1. Twisted Pair Wiring from a TPRMIM-33/36 to a Punch Down Block From Into and Out of 50-Pin TPRMIM Feeder Cable Port 12/24 48 Violet/Green 23 Green/Violet 49 Violet/Brown 24 Brown/Violet Port 11/23 46 Violet/Blue 21 Blue/Violet 47 Violet/Orange...
  • Page 61 from a TPRMIM-33/36 to a Punch Down Block (Continued) From Into and Out of 50-Pin TPRMIM Feeder Cable Port 8/20 40 Black/Gray 15 Gray/Black 41 Yellow/Blue 16 Blue/Yellow Port 7/19 38 Black/Green 13 Green/Black 39 Black/Brown 14 Brown/Black Port 6/18 36 Black/Blue 11 Blue/Black 37 Black/Orange...
  • Page 62 Appendix A: Twisted Pair Wiring Tables Table A-1. Twisted Pair Wiring from a TPRMIM-33/36 to a Punch Down Block (Continued) From Into and Out of 50-Pin TPRMIM Feeder Cable Port 4/16 32 Red/Orange 33 Red/Green Port 3/15 30 White/Gray 31 Red/Blue Port 2/14 28 White/Green 29 White/Brown...
  • Page 63 from a Punch Down Block to a 10Base-T Device From Punch Down Block Port 12/24 B45 Violet/Green B46 Green/Violet B47 Violet/Brown B48 Brown/Violet Port 11/23 B41 Violet/Blue B42 Blue/Violet B43 Violet/Orange B44 Orange/Violet Port 10/22 B37 Yellow/Brown B38 Brown/Yellow B39 Yellow/Gray B40 Gray/Yellow Port 9/21 B33 Yellow/Orange...
  • Page 64 Appendix A: Twisted Pair Wiring Tables Table A-2. Twisted Pair Wiring from a Punch Down Block to a 10Base-T Device (Continued) From Punch Down Block Port 7/19 B25 Black/Green B26 Green/Black B27 Black/Brown B28 Brown/Black Port 6/18 B21 Black/Blue B22 Blue/Black B23 Black/Orange B24 Orange/Black Port 5/17...
  • Page 65 from a Punch Down Block to a 10Base-T Device (Continued) From Punch Down Block Port 2/14 White/Green Green/White White/Brown Brown/White Port 1/13 White/Blue Blue/White White/Orange Orange/White Installation Guide Table A-2. Twisted Pair Wiring To RJ45 Wallplate 1 TX+ 2 TX- 3 RX+ 6 RX- 1 TX+...
  • Page 66 Appendix A: Twisted Pair Wiring Tables Table A-3. Twisted Pair Wiring Summary TPRMIM Punch Down Champ Block Port 12 48 RX+ A45 RX+ 23 RX- A46 RX- 25 Pin Feeder 49 TX+ A47 TX+ Cable 24 TX- A48 TX- Port 11 46 RX+ A41 RX+ 21 RX-...
  • Page 67 Twisted Pair Wiring Tables Figure A-1. Punch Down Block Installation Guide...
  • Page 68 Appendix A: Twisted Pair Wiring Tables A-10 Repeater MIM...
  • Page 69 The TPRMIM-20/22/33/36 and CXRMIM provide a port for Cabletron Systems’ EPIMs. EPIMs let you connect to the main network using different media types. Cabletron Systems offers a variety of EPIMs. The following sections explain specifications for each EPIM. EPIM-T The EPIM-T is an RJ45 connector supporting UTP cabling. It has an internal Cabletron Systems TPT-T™...
  • Page 70 Appendix B: EPIM Specifications EPIM-F1 and EPIM-F2 The EPIM-F1 and EPIM-F2 support Multimode Fiber Optic cabling. Each EPIM has an internal Cabletron Systems FOT-F™ Fiber Optic Transceiver. The EPIM- F1 is equipped with SMA Connectors and the EPIM-F2 is equipped with ST Connectors.
  • Page 71 The transmitter power levels and receive sensitivity levels listed are Peak Power Levels after optical overshoot. A Peak Power Meter NOTE must be used to correctly compare the values given above to those measured on any particular port. If Power Levels are being measured with an Average Power Meter, then 3 dBm must be added to the measurement to correctly compare those measured values to the values listed (i.e.

  • Page 72: Duty Cycle

    Appendix B: EPIM Specifications Receive Sensitivity Maximum Receive Input Power Transmitter Power* (At 25 C into 8.3/125 m fiber) Less Power * Transmit Power Typical Power Coefficient (See Note Below)-0.15dBm/ Parameter Transmitter Peak Wave Length Spectral Width Rise Time/ Fall Time Duty Cycle Bit Error Rate The transmitter power levels given above are Peak Power Levels...
  • Page 73 EPIM-C The EPIM-C supports thin-net coaxial cabling and is equipped with an internal Cabletron Systems TMS-3™ Transceiver. You can use the TERM switch on the front of the EPIM-C to set the internal 50-ohm terminator. This eliminates the need to connect the port to a tee-connector and terminator. Figure B-4 shows the setting for the terminator switch.
  • Page 74 Appendix B: EPIM Specifications EPIM-A and EPIM-X (AUI Port) The EPIM-A is a DB15 female connector used to attach segments to an external transceiver. The EPIM-X is equipped with dual internal transceivers. It has a DB15 male connector used to attach segments to an AUI cable. Figure B-5 shows both modules.
  • Page 75 EPIM-F3 3-16, 3-17, 3-18, B-3 EPIM-T B-1 Connecting a Twisted Pair Segment 3-14, 3-15 Ethernet Jumpers for the CXRMIM, FORMIM, TPRMIM 3-2, 3-3 Ethernet Port Interface Modules (EPIM) 1-5, 3-7, 3-8, B-1 FCC Notice ii Fiber Optic Link Segment 3-16...
  • Page 76 Installing an EPIM 3-7, 3-8 Installing the RMIM 3-1 Installing the RMIM into the MMAC 3-5 Installation Requirements 2-1 Jumper Settings for the CXRMIM, FORMIM, TPRMIM 3-2 LANVIEW LEDs 1-5, 4-4, 4-5 LED Indicators 2-13, 4-5 Manuals 1-9 MMAC 1-6, 3-4, 3-5...
  • Page 77 Overview 1-3 Remote Management 1-5 Stand-alone Capability 1-4, 3-2, 3-3 ST Connector Specifications 2-9, 3-18 Subnet Jumpers for the CXRMIM, FORMIM, TPRMIM 3-2, 3-3 Testing the RMIMs 4-1 Thin-Net Segment 3-9, 3-10, 3-11 TPRMIM-20/22 1-1 Attaching a Twisted Pair Segment 3-12...
  • Page 78 Index Index-4 Repeater MIM...

This manual is also suitable for:

Formim-22Tprmim-20Tprmim-22Tprmim-33Tprmim-36

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