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Cabletron Systems TDRMIM-22A User Manual

Manual is about: TOKEN RING DUAL REPEATER MIM

Summary of TDRMIM-22A

  • Page 1

    Tdrmim-22a/42a tm token ring dual repeater mim user’s guide.

  • Page 2: Tdrmim Quick Reference Card

    Qr-1 tdrmim quick reference card side view of the tdrmim switchblock sw1 with factory default settings rj45 lobe port pinouts switchblock sw1 daughterboard motherboard front panel sw1 12345678 off on fnb ring 1 speed default: [leave off] [unused] [unused] ring ports 1 ring in ring ports 1 ring out r...

  • Page 3

    Qr-2 all led signals normal operation hardware error condition, or reset in process module bypass—no ports inserted in fnb rings fnb interfaces active management control in effect (hardware default switches overridden) hardware defaults in effect 16 mbps ring speed in effect 4 mbps ring speed in eff...

  • Page 4

    Notice i notice 1 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 so...

  • Page 5

    Notice ii fcc notice 2 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. N...

  • Page 6

    Notice iii cabletron software program license 5 1. 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 th...

  • Page 7

    Notice iv united states government restricted rights 7 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 r...

  • Page 8: Chapter 1

    Contents v chapter 1 introduction 1.1 using this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 about the tdrmim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2.1 ring in/ring out ports . . . . . . . . . . . . . . . . . . . . . . 1-3 1.2.2 lobe ports...

  • Page 9: Chapter 3

    Contents vi 2.5.5 lanview leds . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 2.6 other specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 2.6.1 hardware specifications . . . . . . . . . . . . . . . . . . . . 2-12 2.6.2 environmental requirements . . . . . . . . . ...

  • Page 10: Chapter 1

    Page 1-1 chapter 1 introduction welcome to the token ring dual port repeater/concentrator switching media interface module user’s guide . This manual is a reference for the installation and troubleshooting of cabletron systems’ tdrmim-22a and tdrmim-42a modules, represented in figure 1-1. The tdrmim...

  • Page 11: 1.1 Using This Manual

    Using this manual page 1-2 1.1 using this manual prior to installing and operating the tdrmim, read through this manual completely. If you are not familiar with port switching and four-ring fnb applications, read appendix a, introduction to port switching . This manual assumes users to have a workin...

  • Page 12

    About the tdrmim page 1-3 • cable fault autowrap on fiber optic trunk ports • multi ring out connectivity for passive mau workgroups • lanview leds for “at-a-glance” diagnostic monitoring 1.2.1 ring in/ring out ports the dual multimode fiber ring port sets (ring ports 1 and ring ports 2) support two...

  • Page 13

    About the tdrmim page 1-4 repeater circuitry 1 the ring port sets provide circuitry that completely retimes and repeats all received signals before transmitting them to the next point on the ring. This enhances signal integrity and makes adjusted ring length (arl) computations unnecessary: maximum t...

  • Page 14

    About the tdrmim page 1-5 result is enhanced signal integrity and extended maximum lobe cable distances. For length specifications for utp and stp lobe cables, see section 2.2.2, utp cable lengths to stations and section 2.3.2, stp cable lengths to stations . Ring speed fault protection 3 tdrmims pr...

  • Page 15: Trmm-4

    About the tdrmim page 1-6 as with port-switching mims, the cluster-switching tdrmim requires the support of a port-assigning management module such as the trmm-2 or trmm-4 to switch its connections. With this support, the clusters may be individually assigned to any of the four vertically stacked fn...

  • Page 16

    About the tdrmim page 1-7 fnb 1 while the trmm-2’s station port interface is operating through that cluster. For if allowed, such a switch would create the prohibited condition of redundant management on fnb 1. 1.2.4 automatic configuration at power-up the management module in the tdrmim’s host mmac...

  • Page 17

    About the tdrmim page 1-8 1.2.5 support for passive mau workgroups the tdrmim’s rj45 lobe ports default to their tcu configuration to support station connections, but they also offer a multi ring out override to support connections to passive mau (multi-station access unit) workgroups. Because a pas...

  • Page 18: Multi Ring Out Configuration

    About the tdrmim page 1-9 figure 1-5. Improved beacon recovery resolution for maus multi ring out configuration daisy-chain configuration when maus are daisy-chained, they are connected as a single collective entity. To isolate the hub from a beaconing mau station, the entire chain must be bypassed....

  • Page 19

    Supplemental information page 1-10 1.2.7 lanview leds the lanview led system comprises several leds, located on the front panel of the tdrmim. Operating as an “at-a-glance,” visual diagnostic and status monitoring system, they light, blink, and flash in various colors to indicate various network and...

  • Page 20

    Supplemental information page 1-11 commercial building wiring standard, eia standard proposal no. 1907-b (if approved, to be published as eia/tia-568) lan troubleshooting handbook , mark miller (1989, m&t publishing) 1.3.3 getting help if you need additional support related to cabletron systems toke...

  • Page 21: Chapter 2

    Page 2-1 chapter 2 requirements and specifications before installing the tdrmim, review the recommendations and requirements outlined in this chapter. Failure to follow these guidelines could result in poor network performance. 2.1 general cabling considerations take care in planning and preparing t...

  • Page 22

    General cabling considerations page 2-2 2.1.3 installation recommendations for optimum network performance, make sure that twisted pair cabling installations comply with the following recommendations: • keep utp cabling free of splices, stubs, or bridged taps. • do not use more than two punch-down b...

  • Page 23

    Utp cabling specifications page 2-3 all stp cables of ibm type 1, 2, 6, and 9 meet token ring network performance requirements. All category 5, all category 4, and some category 3 (see section 2.2.2, utp cable lengths to stations) utp cables also meet these requirements. However, signal integrity re...

  • Page 24

    Utp cabling specifications page 2-4 category 3 usually consists of four unshielded twisted pairs of 24 awg solid wire for data or voice communication. (ibm type 3 is coincidentally the same as utp category 3.) it is typically used to wire cable runs within the walls of buildings. In some installatio...

  • Page 25

    Stp cabling specifications page 2-5 2.2.2 utp cable lengths to stations the physical length of the cable connecting a station to a tcu port on the concentrator is referred to as thelobe length. The maximum lobe length attainable with the concentrator, under ideal conditions, is shown in table 2-3. C...

  • Page 26

    Stp cabling specifications page 2-6 ibm type 1 consists of two shielded twisted pairs (stp) of 22 awg solid wire for data. It is often used for the longest cable runs within the walls of buildings. Ibm type 2 consists of six pairs of unshielded twisted pairs of 24 awg solid wire and a shield casing....

  • Page 27

    Fiber optic cable specifications page 2-7 mixed stp cable types 1 if cable types are to be mixed in the installation, compensations must be made for the different cable attenuations. For example, type 6 & 9 cables can be run for only 2/3 the distance of type 1: 100 meters (type 1) ≈ 66 meters (types...

  • Page 28

    Tdrmim operating specifications page 2-8 2.5 tdrmim operating specifications this section describes the operating specifications for each of the active token ring concentrator modules. Cabletron systems reserves the right to change these specifications at any time without notice. 2.5.1 switchblock s...

  • Page 29

    Tdrmim operating specifications page 2-9 figure 2-2. Switchblock sw1 with factory default settings default ring speed of fnb ring 1 1 use switch #1 to set the default ring speed for fnb ring 1: on for 16 mbps, and off for 4 mbps. All other rings default to 16 mbps. This switch setting is relevant on...

  • Page 30

    Tdrmim operating specifications page 2-10 2.5.2 media filters when connecting token ring stations that are not equipped with a type 3 media filter to the tdrmim-22a (utp), install a type 3 media filter (such as the cabletron systems trmf or trmf-2) in line with the lobe cable at the token ring stati...

  • Page 31

    Tdrmim operating specifications page 2-11 figure 2-4. Stp adapter/patch cable (pn 9372057-8) st connectors for fiber optic cabling 1 the ring port sets incorporate st (stab & twist) connectors for fiber optic cable connections. 2.5.4 ring sequence when multiple token ring mims (set to the same ring ...

  • Page 32: 2.6 Other Specifications

    Other specifications page 2-12 order is continuous, wrapping directly from the mmac’s last inserted port to the first—from the bottom of the list, right back to the top. 2.5.5 lanview leds there are a number leds on the front panel of each tdrmim. Each individually labelled led uses a simple combina...

  • Page 33

    Other specifications page 2-13 this product conforms to the following standards: safety 1 • ul 1950 • csa c22.2 no.950 • en 60950 emi 2 • fcc part 15 class a • en 55022 class a • vcci class i emc 3 • en 50082-1 • iec 801-2 • iec 801-3 • iec 801-4 2.6.4 service mtbf (mean time between failure): 603,3...

  • Page 34: Chapter 3

    Page 3-1 chapter 3 installation this chapter explains how to install the tdrmim into a cabletron systems mmac product and to connect network devices to the tdrmim’s lobe ports. This unit must be installed by qualified personnel only. Failure to follow instructions could result in the presence of a s...

  • Page 35

    Installation page 3-2 3.2.1 unpacking the tdrmim unpack and visually inspect the tdrmim for damage: electrostatic discharge (esd) can damage the module. Take precautions against esd. When handling the module, hold only the edges of the board or the metal front panel. Avoid touching the components or...

  • Page 36

    Installation page 3-3 figure 3-1. Installing the tdrmim into the mmac 3.2.4 boot-up check table 3-1 describes the lanview led activity for three instances of tdrmim operation. The first represents the moment of power-on. The second and third both represent possible post boot-up modes: management mod...

  • Page 37

    Installation page 3-4 boot-up may take a few minutes. When the port leds turn from red to off, boot-up is complete. If the boot-up does not proceed as described above, refer to chapter 4, testing and troubleshooting. The led activity presented above represents a power-up with no cables connected to ...

  • Page 38

    Installation page 3-5 signal crossover or null modem effect, the tcu and token ring station connectors are wired so that the transmit pair from the tdrmim connects to the receive pair in the station and the receive pair from the tdrmim connects to the transmit pair in the station. Table 3-2 provides...

  • Page 39

    Installation page 3-6 figure 3-2. Token ring lobe cable wiring schematic attaching twisted pair cabling at the module 1 to attach station cable to the tdrmim: 1. Insert the male rj45 connector from one end of the station’s lobe cable into any tcu port on the front of the tdrmim. 2. If a patch panel ...

  • Page 40

    Installation page 3-7 3.2.6 connecting ring in/ring out cables the fiber cable ends should be color-coded so that the colors are switched at either end of the cable (as in figure 3-3) ensuring that if the user keeps the color/port connection consistent, the cables will be properly crossed over (as i...

  • Page 41

    Installation page 3-8 and test the installation thoroughly to ensure that all stations are able to receive and that data is being relayed without error. Verify also that the networking software is configured properly to match the installed network..

  • Page 42: Chapter 4

    Page 4-1 chapter 4 testing and troubleshooting this section contains procedures to verify that the connections between the tdrmim and the token ring stations are functioning properly. A description of the lanview led system is also provided. 4.1 installation checkout perform the following check to c...

  • Page 43: 4.2 Lanview Led Signals

    Lanview led signals page 4-2 when these checks have been successfully cleared, the tdrmim is ready for normal operation. If further problems are encountered, contact cabletron systems technical support. 4.2 lanview led signals lanview is cabletron systems’ built-in visual diagnostic and status monit...

  • Page 44

    Lanview led signals page 4-3 err—error 1 this led should be off during normal operations. If the led is red, there is a hardware failure within the module. If this occurs, contact cabletron systems technical support. Byp—bypass 2 if the led is off, at least one port is inserted into the fnb rings. I...

  • Page 45

    Lanview led signals page 4-4 16mb—ring speed 4 yellow indicates that the ring speed is set to 16 mbps. Off indicates that the ring speed is set to 4 mbps. In use—ring in use 5 these leds indicate the status of network communications on the associated ring. They do not reflect ring activity that excl...

  • Page 46

    Lanview led signals page 4-5 during normal operation, the leds for tcu ports operate as follows: green indicates that the tcu port is inserted into its assigned ring. Blinking green indicates that a token ring station is phantom linked to the port, but the tcu port is disabled by management command....

  • Page 47

    Lanview led signals page 4-6 green indicates that the associated ri or ro port is linked. G lnk.

  • Page 48: Appendix A

    Page a-1 appendix a introduction to port switching a.1 introduction this appendix introduces the concepts of port switching, port assignment, and the four-ring flexible network bus (fnb). These concepts are fundamental to the basic functionality of a growing number of cabletron systems token ring pr...

  • Page 49: A.4  With Port Switching

    With port switching page a-2 figure a-1. Fnb segmentation produces two isolated fnb rings management of segmented fnb rings when the fnb is segmented, as shown in figure a-1., the modules on one segment are isolated from modules on another fnb segment, and management interfaces with one ring are iso...

  • Page 50: Trmm-4

    With port switching page a-3 figure a-2. Four vertically stacked fnb rings port-switching mims can assign ports on an individual basis to connect to any of four fnb rings, thereby providing multiple users with access to multiple rings through a single mim. Refer to figure a-3. For a comparative illu...

  • Page 51: Trmm-2

    With port switching page a-4 figure a-3. Mixed mims (in this example, only fnb ring 1 and the segment are managed.) management for a management module to fully manage a ring, it requires a network-monitoring interface with the ring. Whereas single-ring management modules have only one network interf...

  • Page 52

    Configuration specifications page a-5 figure a-4. Port assignment and port switching terminology the four vertically stacked fnb rings are referred to as fnb rings 1, 2, 3, and 4. Fnb ring 1 is the same ring that is used by all earlier generation, single-ring mims and was addressed in earlier manual...

  • Page 53

    Configuration specifications page a-6 should be grouped together in the right-most slots of the mmac as shown in figure a-3. Single-ring mims still have the ability to segment fnb ring 1 (as shown in figure a-3.). They still view the fnb as having only one ring and are not affected by the utilizatio...