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Cabletron Systems IRM-2 Installation Manual

Intelligent repeater module
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INTELLIGENT REPEATER MODULE
(IRM-2)
INSTALLATION GUIDE
CABLETRON SYSTEMS, P.O. Box 5005, Rochester, NH 03867-5005

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Summary of Contents for Cabletron Systems IRM-2

  • Page 1 INTELLIGENT REPEATER MODULE (IRM-2) INSTALLATION GUIDE CABLETRON SYSTEMS, P.O. Box 5005, Rochester, NH 03867-5005...
  • Page 3 P.O. Box 6257, E. Rochester, NH 03867-6257 All Rights Reserved Printed in the United States of America Order number: 9030316-01 June 91 Remote LANVIEW/Windows, SPECTRUM, LANVIEW, IRM-2, IRM2/LM, MMAC-8, MMAC-8FNB, MMAC-5FNB, MMAC-3, MMAC-3FNB, PSM, PSM-R, MMAC-5PSM and LAN-MD are trademarks of Cabletron Systems Inc.

  • Page 4: Fcc Notice

    FCC NOTICE This device complies with Part 15 of 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. WARNING: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of FCC Rules.

  • Page 5: Table Of Contents

    Installing the IRM-2... 3-3 Selecting the Repeater Port ... 3-5 Connecting the IRM-2 to the Network ... 3-5 3.5.1 Connecting to the Network Via the AUI Port ... 3-5 3.5.2 Connecting to the Network Via the Fiber Optic Port... 3-8 CHAPTER 4 TESTING AND LANVIEW Installation Check-Out ...
  • Page 6 CONTENTS...

  • Page 7: Chapter 1 Introduction

    Welcome to the Cabletron Systems Intelligent Repeater Module (IRM-2™) Installation Guide. We have designed this manual to serve as a simple installation and reference guide for the IRM-2, and to explain the capabilities and special features of the IRM-2. The IRM-2 provides a high performance IEEE 802.3 Repeater with sophisticated network...

  • Page 8: Getting Help

    Ethernet coaxial cable via an external transceiver. Either one of these ports can act as the repeater port to the external network. When the IRM-2 is first powered up, the AUI port acts as the repeater port and the fiber ports are off. Using the IRM-2...

  • Page 9: Aui Port

    9 Pin RS232 Port 15 Pin DB-15 AUI Port Figure 1-1 Intelligent Repeater Module (IRM-2) IRM-2 MMAC LANVIEW LEDs RCV1 POK1 Front Panel Switches Reset Switch RESET Fiber Optic Ports LANVIEW LEDs Fiber Optic Ports ETHERNET INTRODUCTION...

  • Page 10: Repeater Functionality

    fiber port act as the repeater port and have the AUI port off. This configuration allows you to connect the IRM-2 to a fiber optic link segment directly without the need for an external fiber optic transceiver.

  • Page 11: Related Manuals

    Third Party SNMP compliant Network Management Packages. The IRM-2’s network management capabilities provide the necessary management tools for the IRM-2 to operate at its full capacity. Your ability to set up parameters within the network management capabilities ensures optimal performance of the IRM-2, and, hence, the network.

  • Page 12: Chapter 2 Network Requirements/Specifications 2.1 Network Requirements

    Also, refer to the operating specifications and environmental requirements that are listed. All conditions, guidelines, specifications, and requirements included in this chapter must be met to ensure satisfactory performance of the IRM-2. Failure to follow these guidelines will result in unsatisfactory network performance.

  • Page 13: Operating Specifications

    Length - The maximum allowable fiber optic cable length is 3 Km. However, IEEE 802.3 specifications allow for a maximum of 1 Km. OPERATING SPECIFICATIONS The operating specifications for Cabletron Systems’ IRM-2 are included in this section. Cabletron Systems reserves the right to change these specifications at any time without notice.
  • Page 14 When lit, this LED indicates that a problem has been detected with the IRM-2 (red indicator). When lit, this LED indicates that the IRM-2 is receiving power from the MMAC (green indicator). When lit, this LED indicates the IRM-2 is repeating a data packet...
  • Page 15 When lit, this LED indicates that the Network Interface Chip asso- ciated with the IRM-2’s fiber op- tic and AUI ports on the IRM-2 has passed an internal Loop Back Test and is ready for trans- mission (green indicator).
  • Page 16 CONSOLE PORT Type: Standard 9 pin RS232 Port Pin 1 Not Used Pin AUI PORT Type: 15 position D type receptacle Pin 1 Logic Ref. Connector Shell: FIBER OPTIC INTERFACE Internal Transceiver: Type: NETWORK REQUIREMENTS/SPECIFICATIONS 2 Transmit (TXD) 3 Receive (RXD) 4 Not Used 2 Collision + 3 Transmit +...

  • Page 17: Environmental Requirements

    TUV, VDE class A Meets FCC part 15, Class A limits. WARNING: It is the responsibility of the person who sells the system of which the IRM-2 will be a part to ensure that the total system meets allowed limits of conducted and radiated emissions.
  • Page 18 Service MTBF (MHBK-217): MTTR Physical Properties Dimensions: Weight: Unit: Shipping: NETWORK REQUIREMENTS/SPECIFICATIONS >35,543 hrs. projected <0.5 hrs. 34.07D x 29.21H x 2.54W cm. (13.4D x 11.5H x 1.0 W inches) 0.85 kg (1.95 lbs) 1.34 kg (2.95 lbs)
  • Page 19 NETWORK REQUIREMENTS/SPECIFICATIONS...

  • Page 20: Chapter 3 Installing The Irm-2

    Cabletron Systems’ Technical Support immediately. SETTING THE IRM-2 JUMPERS There are eight jumpers on the IRM-2. See Figure 3-1. Three of the jumpers, H1, H6, and JP1 can be changed. The remaining jumpers are for Cabletron Systems use only and should not be changed from their default positions.

  • Page 21: Installing The Irm

    To set the Battery Enable/Disable Jumper: • To enable the Battery Backed-up RAM, place the jumper over Pins 1 and 2. This is the position in which the IRM-2 is shipped. • To disable the Battery Backed-up RAM, place the jumper over Pins 2 and 3.

  • Page 22: Setting The Cts External/Internal Jumper (H6)

    To set the CTS External/Internal Jumper: • If RTS or DTR is generated by your device to the IRM-2, place the jumper over Pins 1 and 2. This is the position in which the IRM-2 is shipped. • If RTS or DTR must be generated internally by the IRM-2, place the jumper over Pins 2 and 3.
  • Page 23 Install the IRM-2 into the MMAC as follows: 1. Power off the MMAC. 2. Slide the IRM-2 (2, Fig. 3-2) into Slot 0 (4) of the MMAC’s (1) card cage. Be sure that the card is in the top and bottom slot guides.

  • Page 24: Selecting The Repeater Port

    SELECTING THE REPEATER PORT When the IRM-2 is first powered up, the AUI port acts as the repeater port and the Fiber ports are redundant. This configuration can be altered using IRM-2’s network management capabilities so that the Fiber ports act as...

  • Page 25: Lanview Leds

    INSTALLING THE IRM-2 IRM-2 RCV1 POK1 RESET ETHERNET Figure 3-3 LANVIEW LEDs MMAC LANVIEW LEDs Fiber Optic Ports LANVIEW LEDs...
  • Page 26 3. Attach the male connector on the AUI cable (3, Fig. 3-4) to the AUI port (2) on the IRM-2. 4. Move the slide latch (1) on the AUI Port to secure it to the lock post on the AUI connector.

  • Page 27: Connecting To The Network Via The Fiber Optic Port

    If the ends become contaminated, clean them with de-natured alcohol using a soft, clean, lint free cloth. To connect a fiber optic link segment to an IRM-2's FOIRL Fiber Optic Ports: 1. Remove the protective plastic covers from the fiber optic ports and from the ends of the connectors on each fiber strand.
  • Page 28 5. Attach the fiber labeled 2 to the receive port. 6. Check that the LNK LED for the fiber port on the IRM-2 is lit (Fig. 3-3). If the LED is not lit, perform each of the following steps until it is: a.
  • Page 29 INSTALLING THE IRM-2 3-10...

  • Page 30: Chapter 4 Testing And Lanview

    Before you begin, test each Ethernet segment connected to the IRM-2 to ensure that the segments meet IEEE 802.3 specification limits. 1. If you are testing a fiber optic link segment connected to the IRM-2’s fiber optic ports, connect a LAN-MD to the device end of the link segment, using a transceiver and an AUI cable.

  • Page 31: Using Lanview

    When this red LED is lit, the CPU has detected a problem with the IRM-2. POWER (PWR) LED When this green LED is lit, the IRM-2 is receiving power from the MMAC. RECEIVE (RCV) LED When this yellow LED is flashing, the IRM-2 is repeating a data packet received from one of the segments connected to the MMAC.
  • Page 32 IRM-2 RCV1 POK1 RESET ETHERNET Figure 4-1 LANVIEW LEDs TESTING AND LANVIEW MMAC LANVIEW LEDs Fiber Optic Ports LANVIEW LED...

  • Page 33: Using The Reset Switch

    IRM-2’s external repeater port has passed an internal Loop Back Test and is ready for transmission. RECEIVE 1 (RCV1) LED When this yellow LED is flashing, the IRM-2 is repeating a data packet received from the segment connected to the IRM-2’s AUI or Fiber Optic Port.

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