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Cabletron Systems TRMIM-22A Installation Manual
Summary of TRMIM-22A
Page 1
Trmim-22a, trmim-24a, trmim-42a & trmim-44a 93 series active token ring media interface modules installation guide cabletron systems, p. O. Box 5005, rochester, nh 03867-0505 the complete networking solution™.
Page 2: Notice
Notice i 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 soft...
Page 3: Note:
Notice ii 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. Not...
Page 4: Table of Contents
Table of contents iii table of contents chapter 1 introduction 1.1 using this manual........................................................................ 1-1 1.2 the active concentrator modules ............................................ 1-2 1.3 related manuals......................................
Page 5
Table of contents iv chapter 4 testing and troubleshooting 4.1 installation checkout ...................................................................4-1 4.2 using lanview ..........................................................................4-2.
Page 6: Chapter 1
Introduction 1-1 chapter 1 introduction welcome to the 93 series active token ring media interface modules installation guide . This manual serves as a reference for installing and troubleshooting cabletron systems trmim-22a™, trmim-24a™, trmim-42a™, and trmim-44a™. The trmim-22a, trmim-24a, trmim-4...
Page 7: Introduction
Introduction 1-2 contents and to gain an understanding of the features of the concentrator module. A general working knowledge of token ring (ieee 802.5) networks will be helpful when installing your concentrator module. Chapter 1, introduction , describes how to use this document, provides an overv...
Page 8
Introduction 1-3 network. When any concentrator module is used within an mmac, the concentrator module is connected via the flexible network bus (fnb) to other token ring mims, repeaters, or bridges. Figure 1-1 the trmim-22a, trmim-24a, trmim-42a, and trmim-44a token ring concentrator modules trmim-...
Page 9: Active
Introduction 1-4 features of the concentrator module include: number of connections • trmim-22a 12 - unshielded rj-45 ports • trmim-42a 12 - shielded rj-45 ports • trmim-24a 24 - unshielded rj-45 ports • trmim-44a 24 - shielded rj-45 ports multiple concentrator modules can be installed into an mmac ...
Page 10: Pen
Introduction 1-5 speed fault protection if a station attempts to inserting into the ring at a ring speed (4 or 16 mbits) different from what is set on the trmim, that port is automatically bypassed to prevent the ring from beaconing. The pen led flashes indicating the port with the speed fault is by...
Page 11: Up Guide
Introduction 1-6 for a star-wired network with the mmac at the center. Consult the token ring local management for the trmm, and trmbm-s manual for information on configuring this port. Figure 1-2 using a trmim port as a ring-out port lanview leds several leds, on the front panel of the concentrator...
Page 12: Installation Guide
Introduction 1-7 cabletron systems trmim-10r stp token ring concentrator installation guide cabletron systems token ring local management for the cabletron systems trmm and trmbm-s cabletron systems trmim-20r utp token ring concentrator installation guide 1.4 recommended reading the following public...
Page 13: Chapter 2
Requirements/specifications 2-1 chapter 2 installation requirements/specifications before you attempt to install your concentrator module, review the installation requirements and operating specifications that are outlined in this chapter. Your network installation must meet the conditions, guidelin...
Page 14: Eia Sp-1907B
Requirements/specifications 2-2 • the trmim-42a and trmim-44a support ibm shielded twisted pair (stp) cable types 1, 2, 6, and 9 at their trunk coupling unit (tcu) ports. Utp cable types both utp concentrator modules (trmim-22a & 24a) support d-inside wiring (diw) voice grade unshielded twisted pair...
Page 15: Do Not
Requirements/specifications 2-3 in some installations, existing utp building wiring can be used for token ring cabling. Do not connect utp cabling to any non-token ring network conductors (telephone, etc.) or ground. If in doubt, test wiring before using. Warning: telephone battery and ringing volta...
Page 16
Requirements/specifications 2-4 table 2-2 ibm cable types type 1 two shielded twisted pairs (stp) of 22 awg solid wire for data. Used for the longest cable runs within the walls of buildings. Type 2 similar to type 1 data cable, but having four additional unshielded twisted pairs of 22 awg solid wir...
Page 17: Mixed Stp Cable Types
Requirements/specifications 2-5 cable lengths to stations the physical length of the cable connecting a station to the trunk coupling unit (tcu) port on the concentrator module is referred to as lobe length. The maximum lobe length attainable, under ideal conditions, with your active concentrator mo...
Page 18: Solution:
Requirements/specifications 2-6 — 16 mbit/s ring speed and 130 stations. — the building has 60 meters of type 1 cable in the wall. — what is the length of type 6 cable available to connect from the tcu port to the patch panel and from the local wall jack to the station? — type 6 can only go 2/3 the ...
Page 19
Requirements/specifications 2-7 noise can be caused by either crosstalk or externally induced impulses. If noise induced errors are suspected, it may be necessary to re-route cabling away from potential noise sources (motors, switching equipment, fluorescent lighting, high amperage equipment), or to...
Page 20: 250 Stations
Requirements/specifications 2-8 • for single telecommunications closet rings, lobe lengths should not exceed 100 meters or 22 to 24 awg wire from the attaching device and the tcu port. • when possible, use dedicated utp cable for token ring signals. 2.2 maximum number of stations the maximum number ...
Page 21
Requirements/specifications 2-9 figure 2-2 concentrator module tcu port pinouts the shield continuity is maintained by contacts within the female rj-45 that contact the metallic casing of the male rj-45 on the stp lobe cabling. Shielded patch cables that adapt a shielded rj-45 to a data connector (m...
Page 22: The Concentrator Module
Requirements/specifications 2-10 2.3.2 ring speed the concentrator module ring speed can be set to either 4 mbit/s or 16 mbit/s. The ring speed is automatically set to a default setting at power on. The default ring speed can be selected by positioning a network speed jumper on the board (refer to c...
Page 23: 16Mb
Requirements/specifications 2-11 modules are equipped with the same indicators. Three concentrator-specific leds indicate the current ring speed (16mb), error status (err), and the current mode, management (mgmt) or automatic, and two port-specific leds per port that indicate port enabled (pen) and ...
Page 24: Lnk
Requirements/specifications 2-12 lnk - link status (green - 12 or 24), when lit, indicates that the associated station is providing phantom current. If the port has been made a ring-out port by the mmac management module, the lnk led stays lit even with no connection. Mgmt - management (green) when ...
Page 25: Chapter 3
Installing the concentrator module 3-1 chapter 3 installing the concentrator module this chapter contains instructions for installing your concentrator module into a cabletron systems mmac product and connecting token ring stations at the concentrator module’s trunk coupling unit (tcu) ports. Check ...
Page 26: Note:
Installing the concentrator module 3-2 note: the fnb is a full-height, full-width backplane that links cabletron systems token ring products. Mmac-3s and mmac-8s (without an fnb) can be upgraded with an fnb, providing greater flexibility in configuring your system. Contact cabletron systems technica...
Page 27: Note:
Installing the concentrator module 3-3 3.2 configuring the concentrator module position the hardware jumper on the proper pins on the concentrator module to select either 4 or 16 mbit/s as the default network ring speed (see figure 3-1). The speed setting is a factor in determining the maximum lobe ...
Page 28
Installing the concentrator module 3-4 3. Secure the module to the mmac by tightening the knurled knobs. Failure to firmly secure the mim may result in improper operation. 4. Power on the mmac chassis by plugging the ac power cord into the wall outlet. Figure 3-2 installing the concentrator module 3...
Page 29
Installing the concentrator module 3-5 module connects to the transmit pair in the station. This provides the necessary signal crossover or null modem effect. Table 3-1 provides a cross-reference of pinouts for connections that may be encountered along the length of lobe cabling. The lobe cabling us...
Page 30
Installing the concentrator module 3-6 figure 3-3 token ring station cabling a type 3 media filter must be used when connecting the utp lobe cable from either of the active utp concentrator modules (trmim- 22a/24a) to a token ring station that is not equipped with an internal filter. A type 3 media ...
Page 31: Note:
Installing the concentrator module 3-7 2. Insert the male rj-45 connector from one end of the station cabling into any tcu port (1x through 12x or 24x) at the front of the concentrator module (see figure 3-4). 3. If a patch panel is being used, attach the other end of the cable to the appropriate pa...
Page 32: Troubleshooting
Installing the concentrator module 3-8 3.5 finishing the installation with power on at the mmac and the attached stations, check that the red error led on the concentrator module is not lit and no error indications exist at the attached stations. The green link attached leds on the mim should be ill...
Page 33: Chapter 4
Testing and troubleshooting 4-1 chapter 4 testing and troubleshooting this section contains procedures to verify that the connections between the concentrator module and the token ring stations are functioning properly. A description of the lanview leds is also provided. 4.1 installation checkout pe...
Page 34: 16Mb
Testing and troubleshooting 4-2 b. Be sure that all devices in the ring network are set to the same ring speed. Check all mims and stations in the network. C. Check that the mims in the mmac are grouped together according to network type and data rate. For example, ethernet mims together, 4 mbit/s t...
Page 35: Err
Testing and troubleshooting 4-3 • err - the error indicator (red) should not be lit under normal operating conditions. When lit this led indicates one of the ports is bypassed due to a ring speed error (a device at one of the ports is set to the wrong ring speed) or the detection of a concentrator m...
Page 36: Mgmt -
Testing and troubleshooting 4-4 station has removed phantom current from the tcu port connection. If the port has been made a ring-out port by the mmac management module, the lnk led stays lit even with no connection. • mgmt - management (green) when lit, indicates that the concentrator module is in...