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Cabletron Systems MicroMMAC-24E Installation Manual

10base-t intelligent stackable hub
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10BASE-T INTELLIGENT STACKABLE HUB
MicroMMAC-24E
10BASE-T HUB
CABLETRON
MicroMMAC-24
PWR
CPU
DISPLAY
RESET
CLN
COM 2
COM 1
MicroMMAC-34E
10BASE-T HUB
CABLETRON
MicroMMAC-34
PWR
CPU
RESET
DISPLAY
CLN
COM 2
COM 1
MicroMMAC

INSTALLATION GUIDE

LANVIEW
R
WITH
RCV
E
LNK
21 20
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16 15 14
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24 23
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18 17
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RCV
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LNK
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11 10
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1
LANVIEW
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WITH
RCV
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LNK
21 20
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18 17
16 15 14
13
24 23
22
2
RCV
E
LNK
12
11 10
9
8
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2
1
1
2 4 X
2 3X
2 2 X
2 1 X
2 0 X
19X
18X
12X
11X
10X
9X
8X
7X
6X
24X
12X
EPIM 2
17X
16 X 15 X
14 X 13 X
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3X
2X
1X
EPIM 1
EPIM 2
13X
1X
EPIM 1

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Summary of Contents for Cabletron Systems MicroMMAC-24E

  • Page 1: Installation Guide

    10BASE-T INTELLIGENT STACKABLE HUB INSTALLATION GUIDE MicroMMAC-24E 10BASE-T HUB LANVIEW WITH CABLETRON MicroMMAC-24 24 23 DISPLAY RESET COM 2 COM 1 11 10 MicroMMAC-34E 10BASE-T HUB LANVIEW WITH CABLETRON MicroMMAC-34 24 23 RESET DISPLAY COM 2 COM 1 11 10...
  • Page 2 NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software described in this manual is subject to change without notice. IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED TO LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR...

  • Page 3: 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 4 CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT IMPORTANT: Before utilizing this product, carefully read this License Agreement. This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron software program (the “Program”) contained in this package.
  • Page 5 Notice UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its suppliers.

  • Page 6: Declaration Of Conformity

    DECLARATION OF CONFORMITY Application of Council Directive(s): Manufacturer’s Address: European Representative Name: European Representative Address: Conformance to Directive(s)/Product Standards: Equipment Type/Environment: We the undersigned, hereby declare that the equipment packaged with this notice conforms to the above directives. Manufacturer Mr. Richard Michaud ___________________________________ Full Name Manager of Engineering Services...

  • Page 7: Table Of Contents

    CHAPTER 1 INTRODUCTION How to Use This Manual ... 1-1 Manual Organization ... 1-1 Document Conventions ... 1-2 MicroMMAC Overview... 1-3 MicroMMAC Features... 1-4 Stackable Capabilities ... 1-6 Remote Network Management Capabilities ... 1-7 Optional Features ... 1-8 Related Manuals... 1-9 1.10 Getting Help...
  • Page 8 Contents CHAPTER 4 CONNECTING TO THE NETWORK Connecting the MicroMMAC to the Network ...4-1 4.1.1 Connecting a 10BASE-T Segment to the MicroMMAC-22E and MicroMMAC-24E4-2 4.1.2 Connecting a 10BASE-T Segment to the MicroMMAC-32E and MicroMMAC-34E4-3 4.1.3 Connecting a 10BASE-T Segment to an EPIM-T...4-5 4.1.4 Connecting a 10BASE-F Segment to an EPIM-F1...4-6 4.1.5...
  • Page 9 C.1.3 Multimode Fiber Optic Cable...C-4 C.1.4 Single Mode Fiber Optic Cable ...C-5 C.1.5 10BASE2 Thin Coaxial Cable ...C-6 C.1.6 AUI Cable ...C-7 Network Port Specifications...C-7 C.2.1 MicroMMAC-22E and MicroMMAC-24E Network PortsC-8 C.2.2 MicroMMAC-32E and MicroMMAC-34E Network PortsC-8 COM Port Specifications ...C-10 Transceiver Requirements ...C-10...

  • Page 10: Chapter 1 Introduction

    MicroMMAC-22E, MicroMMAC-24E, MicroMMAC-32E, MicroMMAC-34E, MicroMMAC-22ES, MicroMMAC-24ES, MicroMMAC-32ES, and MicroMMAC-34ES. Unless it is noted differently in this guide, the term MicroMMAC NOTE refers to the MicroMMAC-22E, MicroMMAC-24E, MicroMMAC-32E, MicroMMAC-34E, MicroMMAC-22ES, MicroMMAC-24ES, MicroMMAC-32ES, and MicroMMAC-34ES. 1.1 HOW TO USE THIS MANUAL Read through this manual to gain an understanding of the features and capabilities of the MicroMMAC.

  • Page 11: Document Conventions

    Chapter 1: Introduction Chapter 5, Troubleshooting, describes how to use the LANVIEW LEDs to troubleshoot network problems. Appendix A, MicroMMAC Specifications, provides the physical properties, environmental operating requirements, agency approvals, and power requirements. Appendix B, EPIM Specifications, lists specifications for each of the optional EPIMs available for the MicroMMAC.

  • Page 12: Micrommac Overview

    • MicroMMAC-22E provides 12 RJ45 network ports, one EPIM port, and one BRIM port. • MicroMMAC-24E provides 24 RJ45 network ports, two EPIM ports, and one BRIM port. • MicroMMAC-32E provides one RJ21 connector (providing 12 twisted pair segments), one EPIM port, and one BRIM port.

  • Page 13: Micrommac Features

    Chapter 1: Introduction 1.5 MicroMMAC FEATURES Repeater Functionality The MicroMMAC fully conforms to the IEEE 802.3 Repeater, AUI, and 10BASE-T specifications, and provides the flexibility to connect networks using IEEE 802.3, Ethernet Version 1 or Version 2 equipment. The MicroMMAC transmits retimed data packets, regenerates the preamble, extends fragments, and arbitrates collisions.
  • Page 14 The MicroMMAC is equipped with an LCD that provides information about the MicroMMAC such as power up diagnostics, firmware revisions, MAC and IP addresses, and error alerts. Reset Button The Reset button lets you re-boot and initialize the processor. Intelligence The MicroMMAC is equipped with an advanced Intel i960 microprocessor to provide a scalable RISC-based architecture.

  • Page 15: Stackable Capabilities

    You can also add or remove hubs from the stack without having to power down. Stackable configurations let you maintain only one IEEE repeater hop while providing up to 130 Ethernet ports.

  • Page 16: Remote Network Management Capabilities

    MicroMMAC MANAGING 4 SEH NON-INTELLIGENT HUBS HubSTACK 10BASE-T LANVIEW® WITH SEH-24 SEH INTERCONNECT HubSTACK 10BASE-T LANVIEW® WITH SEH-24 SEH INTERCONNECT HubSTACK 10BASE-T LANVIEW® WITH SEH-24 SEH INTERCONNECT HubSTACK 10BASE-T LANVIEW® WITH SEH-24 SEH INTERCONNECT MicroMMAC-34E 10BASE-T WITH LINE: 100-125V - 4.0A 200-250V - 2.0A...

  • Page 17: Optional Features

    Chapter 1: Introduction 1.8 OPTIONAL FEATURES The following features are not included with the MicroMMAC, but can be purchased separately from Cabletron Systems. Bridging/Routing Capabilities Bridge Router Interface Modules (BRIMs) provide the MicroMMAC with bridging/routing capability. Cabletron Systems offers BRIMs that support the following technologies: •...

  • Page 18: Related Manuals

    10BASE-T Unshielded Twisted Pair EPIM-X Standard Transceiver HubSTACK Interconnect Cables HubSTACK Interconnect cables link the MicroMMAC to SEH hubs in the stack. Table 1-2 lists the part number and application for each cable. Table 1-2 HubSTACK Interconnect Cables Part Number...

  • Page 19: Getting Help

    Chapter 1: Introduction 1.10 GETTING HELP If you need additional support related to the MicroMMAC, or if you have any questions, comments, or suggestions concerning this manual, contact Cabletron Systems Technical Support: By phone By CompuServe By Internet mail By FTP Login Password Before calling Cabletron Systems Technical Support, have the following...

  • Page 20: Chapter 2 Controls And Indicators

    CONTROLS AND INDICATORS This chapter describes how to identify and use the controls and indicators of the MicroMMAC. 2.1 IDENTIFYING MicroMMAC COMPONENTS Figure 2-1 shows each of the MicroMMAC’s operational components. MicroMMAC-24E 10BASE-T HUB CABLETRON MicroMMAC-24 DISPLAY RESET COM 2...

  • Page 21: Turning The Micrommac On And Off

    Chapter 2: Controls and Indicators 2.2 TURNING THE MicroMMAC ON AND OFF The MicroMMAC is NOT equipped with a Power ON/OFF NOTE switch. To power-on the MicroMMAC, perform the following steps: 1. Plug the power cord into the power cord connector on the back panel of the MicroMMAC.

  • Page 22: Static System Messages

    2.3.1 Static System Messages Static System messages provide MicroMMAC configuration information. Table 2-1 lists each message. To view Static System messages, perform the following steps: 1. Press and immediately release the Display button to view the first Static System Message in the queue. 2.

  • Page 23: Saved Alarm Messages

    Chapter 2: Controls and Indicators 2.3.2 Saved Alarm Messages Saved Alarm messages describe events that occur within the MicroMMAC or on the network. Table 2-2 shows each Saved Alarm message. To view Saved Alarm messages, perform the following steps: 1. Press the Display button for five seconds and then release to view the first Saved Alarm message in the message queue.

  • Page 24: Unsaved Initialization Messages

    Table 2-2 Saved Alarm Messages (Continued) Displayed Messages Port xxxxxx Enabled Port xx Security Violation Cable Redundancy Port xxxxxx Failure Cable Redundancy Enable Port xxxxxx 2.3.3 Unsaved Initialization Messages Unsaved Initialization messages are power-up messages that appear as the event occurs, but are not saved in a buffer for future recall. Table 2-3 lists Unsaved Failure or Error messages and Table 2-4 lists normal Unsaved Initialization messages.

  • Page 25: Saved System Messages

    Chapter 2: Controls and Indicators Table 2-4 Normal Unsaved Initialization Messages Cabletron Hardware Init Cabletron BOOTP Discovery Cabletron TFTP Req. State Cabletron TFTP Complete Cabletron Programming Flash Cabletron Boot Complete 2.3.4 Saved System Messages Saved System messages are device related startup or boot strap messages, BOOTP/tftp host, or startup error messages.

  • Page 26: Using The Reset Button

    Table 2-5 Saved System Messages Displayed Messages BootP Host xxx.xxx.xxx.xxx TFTP Host xxx.xxx.xxx.xxx Last TFTP Host xxx.xxx.xxx.xxx TFTP File xxxxxxxxxxxxxxxx Last TFTP File xxx.xxx.xxx.xxx 2.4 USING THE RESET BUTTON Use the Reset button to initialize (reboot) the MicroMMAC processor. Pressing the Reset button causes the hub to clear all counters, run self-test diagnostics, and reload the firmware image into Local Dynamic Random Access Memory (LDRAM).

  • Page 27: Using The Nvram Switch

    Chapter 2: Controls and Indicators 2.5 USING THE NVRAM SWITCH It is not necessary to remove the chassis cover from the NOTE MicroMMAC to gain access to the NVRAM switch. To prevent the possibility of electrical shock, use only a non-metallic tool when operating the NVRAM switch.
  • Page 28 Using the NVRAM Switch REAR OF CHASSIS NVRAM SWITCH LOCATED BEHIND CIRCULATION VENT 149005 Figure 2-2 NVRAM Switch Location MicroMMAC Installation Guide Page 2-9...

  • Page 29: Chapter 3 Installation

    This chapter provides instructions for the following: • Unpacking the MicroMMAC • Removing the MicroMMAC chassis cover • Setting the mode switches • Adding/Replacing EPIMs • Testing the MicroMMAC Only qualified personnel should perform installation procedures. 3.1 UNPACKING THE MicroMMAC Unpack the MicroMMAC as follows: 1.

  • Page 30: Removing The Chassis Cover

    Chapter 3: Installation 3.2 REMOVING THE CHASSIS COVER This section describes how to remove the chassis cover of the MicroMMAC . The chassis cover must be removed to install BRIMs or SIMMs, and to set the mode switch bank. Refer to the applicable BRIM User’s Guide for installation instructions.
  • Page 31 2. Use a Phillips-head screwdriver to remove the seven screws that attach the chassis cover to the MicroMMAC. Place the screws aside. See Figure 3-1. 3. Remove the chassis cover from the MicroMMAC. See Figure 3-1. Figure 3-1 Removing the Chassis Cover Screws MicroMMAC Installation Guide Removing the Chassis Cover 090830...

  • Page 32: Setting The Mode Switches

    Chapter 3: Installation 3.3 SETTING THE MODE SWITCHES Figure 3-2 shows the location and factory default settings of the mode switches. Check these switches to ensure that they are in the correct position for normal MicroMMAC operation. MicroMMAC TOP VIEW FRONT PANEL Figure 3-2 The MicroMMAC Mode Switches and FLASH SIMM Location Switch definitions are as follows:...
  • Page 33 • Switch 6 - Forced Download. Changing the state of this switch (i.e., moving the switch from one position to another) clears download information from NVRAM and forces the MicroMMAC to download an image file from the station acting as the BOOTP/TFTP server of the MicroMMAC.

  • Page 34: Upgrading The Flash Simm

    Chapter 3: Installation 3.4 UPGRADING THE FLASH SIMM The MicroMMAC allows memory upgrades for the FLASH EEPROM. Figure 3-2 shows the location of the FLASH SIMM Slot. Before you can install the new FLASH SIMM, you need to remove the existing FLASH SIMM.
  • Page 35 To install the replacement FLASH SIMM, refer to Figure 3-4 and perform the following steps: 1. With the SIMM notch positioned as shown in Figure 3-4, gently insert the FLASH SIMM into the SIMM connector. 2. Carefully rock the FLASH SIMM back towards the connector clips until the clips snap into place and secure the FLASH SIMM.

  • Page 36: Adding/Replacing Epims

    Chapter 3: Installation 3.5 ADDING/REPLACING EPIMS This section explains how to add/replace an Ethernet Port Interface Module (EPIM) to upgrade or change the capabilities of the MicroMMAC. EPIMs are sensitive to static discharge. Be sure to use an antistatic wrist strap and observe all static precautions during CAUT ION this procedure.

  • Page 37: Adding/Replacing Brims

    3.6 ADDING/REPLACING BRIMS To add or replace a Bridge/Router Interface Module (BRIM) in the MicroMMAC, refer to the applicable BRIM user’s guide. 3.7 TESTING THE MicroMMAC Before installing the MicroMMAC in a live network, test the hub in a controlled situation to ensure that it is bridging packets. Perform this test with two workstations as shown in Figure 3-6.

  • Page 38: Installing The Micrommac

    The following sections provide instructions for stacking the MicroMMAC or installing it as a standalone device. Follow the instructions that are applicable to your installation needs. Page 3-10 10BASE-T HUB LANVIEW MicroMMAC-24E WITH CABLETRON MicroMMAC-24 24 23 21 20 18 17...

  • Page 39: Shelf Or Tabletop Installation

    21 inches wide, 18 inches deep and 6 inches high, as shown in Figure 3-7. 18 INCHES MicroMMAC-24E 6 INCHES Figure 3-7 Shelf or Tabletop Installation MicroMMAC Installation Guide...

  • Page 40: Attaching The Strain-Relief Bracket

    2. Attach the strain-relief bracket to the bottom of the MicroMMAC as shown in Figure 3-8. STRAIN-RELIEF BRACKET EPIM EPIM Figure 3-8 Attaching the Strain-Relief Bracket Page 3-12 SCREWS (4) LANVIEW 10BASE-T WITH MicroMMAC Installation Guide MicroMMAC-24E 090807...

  • Page 41: Rack Mounting The Micrommac

    2. Using the four cover screws removed in step 1, attach the rack mounting brackets to each end of the MicroMMAC. 10BASE-T HUB MicroMMAC-24E Figure 3-9 Installing the Rackmount Brackets 3. Ensure that the rack used to install the unit will support the unit and that the rack will remain stable with the unit installed in it.

  • Page 42: Stacking The Micrommac

    Figure 3-10 Installing the MicroMMAC in the Rack 3.8.4 Stacking the MicroMMAC The rear panel of the MicroMMAC has an Interconnect Bus Out Port (male connector) for stackable connections. To attach non-intelligent hubs to the MicroMMAC, use Cabletron Systems HubSTACK Interconnect cables. Table 3-1 describes each cable.
  • Page 43 To stack SEH non-intelligent hubs together, perform the following steps: 1. Attach the SEH HubSTACK Interconnect cable to the OUT port on the rear panel of the SEH as shown in Figure 3-11. 2. Attach the other end of the SEH HubSTACK Interconnect cable to the IN port on the rear panel of the SEH next in the stack.
  • Page 44 Chapter 3: Installation If you temporarily disconnect one end of a HubSTACK Interconnect cable and leave the other end attached to the hub, ensure that you disconnect the cable from the OUT port as shown in Figure 3-12. This ensures proper termination of the HubSTACK cable. DISCONNECT MicroMMAC AND SEH INTERCONNECT CABLES AT THE "OUT"...

  • Page 45: Connecting The Micrommac To The Network

    MicroMMAC: Connecting a 10BASE-T Segment to the MicroMMAC-22E and MicroMMAC-24E Connecting a 10BASE-T Segment to the MicroMMAC-32E and MicroMMAC-34E Connecting a 10BASE-T Segment to an EPIM-T...
  • Page 46 Chapter 4: Connecting to the Network 4.1.1 Connecting a 10BASE-T Segment to the MicroMMAC-22E and MicroMMAC-24E The MicroMMAC-22E and MicroMMAC-24E have RJ45 network ports that support unshielded twisted pair segments. Each RJ45 port on the MicroMMAC incorporates a Polarity Detection and Correction feature.

  • Page 47: Connecting A 10Base-T Segment To The Micrommac-32E And Micrommac-34E4-3

    c. Check that the twisted pair connection meets dB loss and cable specifications outlined in Appendix C, Network Planning and Configuration. If a link still has not been established, contact Cabletron Systems Technical Support. 4.1.2 Connecting a 10BASE-T Segment to the MicroMMAC-32E and MicroMMAC-34E The MicroMMAC-32E has one RJ71 connector and the MicroMMAC-34E has two RJ71 connectors.
  • Page 48 Chapter 4: Connecting to the Network 2. Attach wires of the 25-pair cable to a punch down block, or patch panel. 3. At the device end of a segment, attach the segment to a 10BASE-T compliant Ethernet device. 4. Check that the link LED on the 10BASE-T Ethernet device and the applicable LNK LEDs on the MicroMMAC are on.

  • Page 49: Connecting A 10Base-T Segment To An Epim-T

    4.1.3 Connecting a 10BASE-T Segment to an EPIM-T Before connecting a segment to the EPIM-T, check each end of the segment to determine the proper crossover. If the wires do not cross over, use the switch on the EPIM-T to internally cross over the RJ45 port. Refer to Figure 4-3 to properly set the EPIM-T crossover switch.

  • Page 50: Connecting A 10Base-F Segment To An Epim-F1

    Chapter 4: Connecting to the Network b. Verify that the RJ45 connector on the twisted pair segment has the proper pinouts. Refer to Figure 4-4. MicroMMAC RJ45 PORT PIN 1 Tx+ PIN 2 Tx- PIN 3 Rx- PIN 4 Rx+ RX+/RX- AND TX+/TX- MUST SHARE A COMMON PAIR.
  • Page 51 Cabletron Systems recommends labeling fiber optic cables to indicate receive and transmit ends. Many cables are prelabeled, providing matching labels or tapes at both ends of each strand of cable. 1. Remove the protective plastic covers from the fiber optic ports on the applicable port on the module, and from the ends of the connectors on each fiber strand.

  • Page 52: Connecting A 10Base-F Segment To An Epim-F2 Or

    Chapter 4: Connecting to the Network 4. At the other end of the fiber optic cable, attach the fiber pair to the transmit and receive ports of the device. If link indicators are present for the fiber optic connection, check that they are ON.
  • Page 53 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. CAUT ION Contamination of cable ends causes problems in data transmissions. If necessary, clean contaminated cable ends using alcohol and a soft, clean, lint-free cloth.

  • Page 54: Connecting A 10Base2 Segment To An Epim-C

    Chapter 4: Connecting to the Network • Verify that the fiber connection meets the dB loss specifications outlined in Appendix C, Network Planning and Configuration. If you are still unable to establish a link, attempt to make the connection between the devices with another fiber optic cable. If this is unsuccessful, contact Cabletron Systems Technical Support.

  • Page 55: Connecting An Aui Segment To An Epim-A

    2. Align the guide channels of the BNC (male) metal housing with the locking keys of the BNC barrel (female) connector on the EPIM. Slide the metal housing of the male connector straight over the metal housing of the female connector. 3.
  • Page 56 Chapter 4: Connecting to the Network To connect an EPIM-A to an external network segment, perform the following steps: 1. Attach an AUI cable, no longer than 50 meters in length, to the external transceiver. 2. Align the DB15 connector of the AUI cable with the AUI port of the EPIM as shown in Figure 4-8.

  • Page 57: Connecting An Aui Segment To An Epim-X

    4.1.8 Connecting an AUI Segment to an EPIM-X The Signal Quality Error (SQE) switch remains in the OFF position for most network connections. However, some Data CAUT ION Terminal Equipment (DTE) requires SQE. Refer to your DTE manual for SQE requirements. To connect an EPIM-X to a device not requiring SQE perform the following steps: 1.
  • Page 58 Chapter 4: Connecting to the Network If the SQE LED remains on, even though the SQE switch is in NOTE the OFF position, contact Cabletron Systems Technical Support. Page 4-14 MicroMMAC Installation Guide...

  • Page 59: Chapter 5 Troubleshooting

    Figure 5-1 shows the location and provides a brief definition of each LED. A detailed description of each LED follows Figure 5-1. MicroMMAC-24E DISPLAY RESET COM 2...
  • Page 60 Chapter 5: Troubleshooting The PWR LED indicates the power status of the MicroMMAC. A green LED indicates that the MicroMMAC is receiving power. If this LED is off, it indicates a loss of input power. Check the input power source (circuit breaker, fuse, etc.).

  • Page 61: Troubleshooting Checklist

    5.2 TROUBLESHOOTING CHECKLIST If your MicroMMAC is not operating properly, Table 5-1 describes some of the problems that may occur, possible causes for the problem, and suggestions for resolving the problem. Table 5-1 Troubleshooting Checklist Problem No LEDs on. Cannot contact the MicroMMAC from in-band management.

  • Page 62: Appendix A Micrommac Specifications

    MicroMMAC SPECIFICATIONS This appendix lists the operating specifications for the MicroMMAC. Cabletron Systems reserves the right to change these specifications at any time without notice. A.1 OPERATING SPECIFICATIONS System Specifications Shared Memory: Internal Processor: Ethernet Controller: Non-Volatile RAM: EPROM: FLASH Memory: CPU Memory: A.2 POWER SUPPLY REQUIREMENTS The MicroMMAC has a universal power supply.

  • Page 63: Environmental Requirements

    Appendix A: MicroMMAC Specifications Table A-2 Power Supply Output Specifications Output Minimum Load +5 Volts 1.00 Amps +12 Volts 0.15 Amps A.3 ENVIRONMENTAL REQUIREMENTS Operating Temperature: Storage Temperature: Operating Humidity: A.4 AGENCY APPROVALS This unit meets the safety requirements of UL 1950, CSA C22.2 No. 950, EN 60950, and IEC 950.

  • Page 64: Appendix Bepim Specifications

    EPIM SPECIFICATIONS EPIMs allow the MicroMMAC to attach to the main network using a variety of media types. Cabletron Systems offers a variety of EPIMs. The following sections provide specifications for each EPIM. B.1 EPIM-T The EPIM-T is an RJ45 connector that supports unshielded twisted pair cabling.

  • Page 65: Epim-F1 And Epim-F2

    Appendix B: EPIM Specifications B.2 EPIM-F1 AND EPIM-F2 The EPIM-F1 and EPIM-F2 shown in Figure B-2 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. Figure B-2 The EPIM-F1 and EPIM-F2 Table B-1 EPIM-F1 and EPIM-F2 Specifications Parameter...

  • Page 66: Epim-F3

    EPIM-F3 The transmitter power and receive sensitivity levels listed in Table B-1 represent Peak Power Levels after optical overshoot. You must use a Peak Power Meter to correctly compare the above values to those you measure on any particular port. If you measure Power Levels with an Average Power Meter, you must add 3 dBm to the measurement to correctly compare measured values to the values listed in Table B-1 (e.g., -29.5 dBm peak = -32.5 dBm average).
  • Page 67 Appendix B: EPIM Specifications Table B-2 EPIM-F3 Specifications Parameter Transmitter Peak Wave Length Spectral Width Rise Time Fall Time Duty Cycle Bit Error Rate The transmitter power levels and receive sensitivity levels listed in Table B-1 represent Peak Power Levels after optical overshoot. You must use a Peak Power Meter to correctly compare the above values to those you measure on any particular port.

  • Page 68: Epim-C

    B.4 EPIM-C The EPIM-C supports thin coaxial cabling and is equipped with an internal Cabletron Systems TMS-3 transceiver. 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 T-connector and terminator. Figure B-4 shows the settings for the terminator switch.

  • Page 69: Epim-A And Epim-X

    Appendix B: EPIM Specifications B.5 EPIM-A AND EPIM-X 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.

  • Page 70: Network Cable Requirements

    Chapter 1 for cable part numbers. The rear panel of the MicroMMAC has an Interconnect Bus Out port (male connector) to stack SEH non-intelligent hubs together. One MicroMMAC supports a stack of up to four SEH non-intelligent hubs. MicroMMAC Installation Guide APPENDIX C...

  • Page 71: 10Base-T Utp And Stp Cable

    Appendix C: Network Planning and Configuration C.1.2 10BASE-T UTP and STP Cable The devices and 10BASE-T twisted pair segments connected to the MicroMMAC and EPIM-T must meet the IEEE 802.3 specifications listed below: Length The IEEE 802.3 10BASE-T standard requires that 10BASE-T devices transmit over a 100 meter (328 foot) link using 22-24 AWG unshielded twisted pair wire.
  • Page 72 Network Cable Requirements Jitter Intersymbol interference and reflections can cause jitter in the bit cell timing, resulting in data errors. A 10BASE-T link must not generate more than 5.0 ns of jitter. If the cable meets the impedance requirements for a 10BASE-T link, jitter should not be a concern.

  • Page 73: Multimode Fiber Optic Cable

    Appendix C: Network Planning and Configuration C.1.3 Multimode Fiber Optic Cable Table C-1 shows Multimode Fiber Optic Cable specifications for the EPIM-F1 and EPIM-F2. Table C-1 Multimode Fiber Optic Cable Specifications Cable Type Attenuation 50/125 m 13.0 dB or less 62.5/125 m 16.0 dB or less 100/140 m...

  • Page 74: Single Mode Fiber Optic Cable

    C.1.4 Single Mode Fiber Optic Cable Table C-2 shows single mode fiber optic cable specifications for the EPIM-F3. Table C-2 Single Mode Fiber Optic Cable Specifications Cable Type 8/125-12/125 m Attenuation Test the fiber optic cable with a fiber optic attenuation test set adjusted for an 1300 nm wavelength.

  • Page 75: 10Base2 Thin Coaxial Cable

    Appendix C: Network Planning and Configuration C.1.5 10BASE2 Thin Coaxial Cable The following specifications show 10BASE2 thin coaxial cable requirements for the EPIM-C: Cable Type 50 ohm RG-58A/U type coaxial cable must be used when making up a 10BASE2 thin coaxial cable segment. Length The 10BASE2 thin coaxial cable segment must be no longer than 185 meters (203.5 yards).

  • Page 76: Aui Cable

    The connector shell of the EPIM-A and the EPIM-X are connected to ground. C.2 NETWORK PORT SPECIFICATIONS The MicroMMAC-22E and MicroMMAC-24E network ports use shielded RJ45 connectors that support both STP and UTP cabling. The MicroMMAC-32E and MicroMMAC-34E use RJ71 connectors for network connections.

  • Page 77: Micrommac-22E And Micrommac-24E

    Appendix C: Network Planning and Configuration C.2.1 MicroMMAC-22E and MicroMMAC-24E Network Ports The MicroMMAC-22E and MicroMMAC-24E provide RJ45 connections for network connections. Figure C-1 shows the RJ45 pinouts. 1 2 3 4 5 6 7 8 Figure C-1 RJ45 Network Ports C.2.2 MicroMMAC-32E and MicroMMAC-34E...
  • Page 78 Table C-3 RJ71 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- Blue/Black TX 6- Orange/Black...

  • Page 79: Com Port Specifications

    Appendix C: Network Planning and Configuration C.3 COM PORT SPECIFICATIONS The RJ45 COM ports supports an Uninterruptible Power Supply (UPS) or access to a Local Management console. For instructions about configuring a UPS or Local Management NOTE console to the MicroMMAC, refer to the MicroMMAC Local Management User’s Guide .
  • Page 80 Transceiver Requirements • The Signal Quality Error (SQE) test function on the transceiver must be disabled if you connect it to a repeater or to an Ethernet Version 1.0 device. In addition, some Version 2.0 equipment does not support the SQE test.
  • Page 81 Numerics 10BASE2 connecting 4-10 10BASE-F connecting 4-6, 4-8 10BASE-T connecting 4-2, 4-3, 4-5 Alignment sleeves 4-6 connecting 4-11, 4-13 auto-baud detection 2-3 BNC connector usage 4-10 BRIMs adding/replacing 3-9 available 1-8 Cable Requirements 10BASE-2 C-6 10BASE-T C-2 AUI C-7 HubSTACK C-1 multimode fiber C-4 single mode fiber C-5 Caution 1-2...
  • Page 82 Index LANVIEW LEDs locating 5-1 saved alarm messages 2-4 saved system messages 2-6 static system messages 2-3 unsaved initialization messages 2-5 Local Management 1-4 Mode Switches 3-4 Note 1-2 NVRAM switch 2-8 Physical Specifications dimensions A-2 weight A-2 Ping 3-9 Pinouts DB15 B-6 RJ21 C-8...
  • Page 83 POWER SUPPLY CORD The mains cord used with this equipment must be a 2 conductor plus ground type with minimum 0.75 mm square conductors and must incorporate a standard IEC appliance coupler on one end and a mains plug on the other end which is suitable for the use and application of the product and that is approved for use in the country of application.

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