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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

3.4

CONNECTING LOBE CABLING

Prior to connecting cables, check that the pinouts and maximum
cable lengths throughout the system conform to the requirements
described in Chapter 2, Installation Requirements/Specifications.

The physical lobe connection from the concentrator module to the
token ring station does not require the use of a crossover cable. The
TCU and token ring station connectors are wired such that the
transmit pair from the concentrator module connects to the receive
pair in the station and the receive pair from the concentrator

TRMM

MMAC

KNURLED
KNOBS

BOARD SLOT

CONCENTRATOR

MODULE

TRMIM-22A

ACTIVE UTP

TOKEN RING

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Содержание TRMIM-22A

Страница 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 ...

Страница 2: ...NG BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright Mar 1993 by Cabletron Systems Inc P O Box 5005 Rochester NH 03867 0505 All Rights Reserved Printed in the United States of America Order Number 9030420 01 March 93 TRMIM 22A ...

Страница 3: ...perator s manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense WARNING Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user s authority t...

Страница 4: ...ifications 2 1 2 1 2 Cabling Recommendations 2 6 2 2 Maximum Number of Stations 2 8 2 3 Operating Specifications 2 8 2 3 1 Connector Types 2 8 2 3 2 Ring Speed 2 10 2 3 3 Ring Order 2 10 2 3 4 LANVIEW LEDs 2 10 2 3 5 General Specifications 2 12 CHAPTER 3 INSTALLING THE CONCENTRATOR MODULE 3 1 Unpacking the Concentrator Module 3 2 3 2 Configuring the Concentrator Module 3 3 3 3 Installing the Conce...

Страница 5: ...TABLE OF CONTENTS iv CHAPTER 4 TESTING AND TROUBLESHOOTING 4 1 Installation Checkout 4 1 4 2 Using LANVIEW 4 2 ...

Страница 6: ...P concentrator modules and both STP concentrator modules are equipped with RJ 45 modular connectors The concentrator module RJ 45 connectors provide for connection of the cabling shield All four concentrator modules are designed for installation in any Cabletron Systems Multi Media Access Center MMAC equipped with a Flexible Network Bus FNB All four concentrator modules are IEEE 802 5 compliant an...

Страница 7: ...roubleshooting describes checks that you can perform if you encounter problems after installing a concentrator module Instructions for using LANVIEW Cabletron Systems built in visual diagnostic and status monitoring system are also included 1 2 THE ACTIVE CONCENTRATOR MODULES The TRMIM 22A TRMIM 24A TRMIM 42A and TRMIM 44A shown in Figure 1 1 can be installed as a free standing token ring network ...

Страница 8: ... ACTIVE STP TOKEN RING 7 X 8 X 9 X 10 X 11 X 12 X 13 X 14 X 15 X 16 X 17 X 18 X 19 X 20 X 21 X 22 X 23 X 24 X SN 1 X 2 X 3 X 4 X 5 X 6 X TRMIM 42A ACTIVE STP TOKEN RING 7 X 8 X 9 X 10 X 11 X 12 X SN 1 X 2 X 3 X 4 X 5 X 6 X TRMIM 24A ACTIVE UTP TOKEN RING 7 X 8 X 9 X 10 X 11 X 12 X 13 X 14 X 15 X 16 X 17 X 18 X 19 X 20 X 21 X 22 X 23 X 24 X SN 1 X 2 X 3 X 4 X 5 X 6 X TRMIM 22A ACTIVE UTP TOKEN RING...

Страница 9: ...ring speed The UTP concentrator modules support voice grade Unshielded Twisted Pair UTP categories 3 4 and 5 cabling The STP concentrator modules support IBM type 1 2 6 and 9 STP cabling Detailed specifications for supported cable types and lengths are listed in Chapter 2 Installation Requirements Specifications Cable Signal Polarity Differential Manchester encoding is utilized for each of the con...

Страница 10: ...y installing token ring concentrators TRMIM 10R 20R with externally accessible Ring In Ring Out ports or token ring repeaters TRRMIM A 2A 4A The choice between using concentrators or repeaters depends on specific network configurations Refer to Cabletron Systems TRMIM 10R 20R Installation Guide or TRRMIM A 2A 4A Installation Guide for more information on the use of these products or contact Cablet...

Страница 11: ...nagement statistics for each of the TCU ports LANVIEW is an effective tool to help you quickly diagnose your physical layer network problems 1 3 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 MultiMedia Access ...

Страница 12: ...nting a token ring network Local Area Networks Token Ring Access Method IEEE Standard 802 5 1989 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 5 GETTING HELP If you need additional support related to the Cabletron Systems Token Ring products or if you have any questions c...

Страница 13: ...REQUIREMENTS Take care in planning and preparing the cabling and connections for your network The quality of the connections the length of cables and other conditions of the installation are critical factors in determining the reliability of your network Work area wall plates outlets used for your token ring network should be clearly labeled as token ring network lobe connections The following sec...

Страница 14: ...ble that exhibit improved transmission characteristics These improved grades of UTP can often be used to permit operation at 16 Mbit s on longer lobe cables Attenuation and Impedance The maximum attenuation for UTP cabling is shown in Table 2 1 The values listed include the attenuation of the cables connectors patch panels and reflection losses due to impedance mismatches in the segment NOTE IBM T...

Страница 15: ...age token ring equipment when connected to token ring cabling Type 3 Media Filter When connecting token ring devices that are not equipped with a Type 3 Media Filter to either of the active UTP concentrator modules TRMIM 22A 24A a Type 3 Media Filter such as the Cabletron Systems TRMF or TRMF 2 must be installed in line with the lobe cable at the connection to token ring station STP CABLE TYPES Bo...

Страница 16: ...nnect devices to from wall jacks Attenuation for Type 6 cable is 3 2 x Type 1 cable 66 m of Type 6 100 meters of Type 1 Type 9 Similar to Type 1 but uses 26 AWG solid wire Attenuation for Type 9 cable is 3 2 x Type 1 cable 66 m of Type 9 100 meters of Type 1 Attenuation and Impedance The maximum attenuation for specific STP cable types is shown in Table 2 3 The attenuation values include the atten...

Страница 17: ...ation you must compensate for the different cable attenuations Type 6 and Type 9 cables can be run for only 2 3 the distance of Type 1 This means 10 meters Type 1 6 6 meters Types 6 9 Sample Problem Determine the maximum length for mixed STP cabling installation Table 2 4 Maximum Lobe Length Cable Type Maximum Lobe Length 4 Mbit s 16 Mbit s TRMIM 22A 24A UTP Category 3 Category 4 Category 5 150 me...

Страница 18: ... 60 meters of Type 1 0 66 x 40 meters of Type 6 max length 26 4 meters of Type 6 Max length for patch panel and wall jack connections 2 1 2 Cabling Recommendations Crosstalk noise and the number and quality of connections determine reliable data propagation and your network s error rate Crosstalk is interference caused by signal coupling between the different cable pairs contained within a multi p...

Страница 19: ... or bridged taps No more than two punch down blocks between TCU ports and wall outlets Metal troughs ducts etc carrying token ring signals should be properly grounded Route cables away from sources of electrical noise such as Power lines Fluorescent lights Electric motors Radio interference Heavy machinery Do not use UTP as main trunk cabling Token ring signals should not be routed through UTP cab...

Страница 20: ... stations 2 3 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 3 1 Connector Types The concentrator module TCU ports are internally crossed over to provide connection of station lobe cabling via female RJ 45 receptacles ...

Страница 21: ...ms in eight foot lengths These adapter patch cables permit connecting to an existing patch panel equipped with data connectors see Figure 2 3 Figure 2 3 STP Adapter Patch Cable PN 9420002 MALE RJ 45 Trunk Coupling Unit TCU Port 8 7 6 5 4 3 2 1 MALE RJ 45 8 7 6 5 4 3 2 1 TRMIM 22A TRMIM 24A TRMIM 42A TRMIM 44A Cable Shield Cable Shield TX RX RX TX TX RX RX TX TRMIM 42A TRMIM 44A TCU Port Patch Pane...

Страница 22: ... Ring boards are automatically attached when possible at power on but the configuration can be modified via network management software attaching or detaching adjacent boards and as a result changing the ring sequence In a network using a concentrator module attached to other Token Ring boards via the FNB the ring order is in MMAC slot number order and then port number order within each Token Ring...

Страница 23: ...is set to 16 Mbit s When this indicator is not lit the ring speed is set to 4 Mbit s ERR Error Red when lit 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 module hardware failure PEN Port Enabled Yellow 12 or 24 when lit indicates that the associated port is enabled by network managemen...

Страница 24: ...5 General Specifications SAFETY Warning It is the responsibility of the person who sells the system to which the TRMIM 22A TRMIM 24A TRMIM 42A TRMIM 44A will be a part to ensure that the total system meets allowed limits of conducted and radiated emissions This equipment is designed in accordance with UL478 UL910 NEC 725 2 b CSA IEC TUV VDE Class A and meets FCC part 15 Class A limits SERVICE TRMI...

Страница 25: ...o the rightmost slot Slot 0 Slot 0 is reserved for specific management bridging repeater modules When the concentrator module is being installed into an MMAC 8 be sure that a PSM or PSM R is installed in the associated rear power supply slot The PSM or PSM R Power Supply Module is the source of power for MMAC modules One Power Supply Module is required for every two MIMs NOTE The PSM R Redundant P...

Страница 26: ...token ring network and another network type i e FDDI or Ethernet requires the use of a bridging device 3 1 UNPACKING THE CONCENTRATOR MODULE Prior to installation unpack and visually inspect your concentrator module for damage CAUTION Electrostatic Discharge ESD can damage your concentrator module Observe all precautions to prevent electrostatic discharges when handling the concentrator module Hol...

Страница 27: ...e software selection overrides the hardware jumper selection Figure 3 1 Network Speed Jumper 3 3 INSTALLING THE CONCENTRATOR MODULE INTO THE MMAC Install the concentrator module into the MMAC as follows 1 If it is not already powered off power off the MMAC chassis by unplugging the AC power cord from the wall outlet 2 Remove the selected blank panel from the MMAC and slide the concentrator module ...

Страница 28: ...he pinouts and maximum cable lengths throughout the system conform to the requirements described in Chapter 2 Installation Requirements Specifications The physical lobe connection from the concentrator module to the token ring station does not require the use of a crossover cable The TCU and token ring station connectors are wired such that the transmit pair from the concentrator module connects t...

Страница 29: ... attain the maximum lobe lengths listed in Chapter 2 Installation Requirements Specifications Shielded patch cables that adapt a shielded RJ 45 to a Data Connector MIC are available from Cabletron Systems These adapter patch cables permit connecting to an existing patch panel equipped with data connectors see Figure 3 3 Table 3 1 Connector Pinout Cross Reference Signal Name RJ 11 6 pin modular con...

Страница 30: ...ns Attaching the Lobe Cabling at the Concentrator Module The twisted pair lobe cabling from the token ring station can be connected to any concentrator module port To attach the station cable at the concentrator module 1 Locate the lobe cable or patch cable that will be used to attach the token ring station to the concentrator module TX TX RX RX 6 3 4 5 Token Ring Station TX TX RX RX 4 5 6 3 TYPE ...

Страница 31: ...Cable at the Station Connect the stations to the concentrator module using a Type 3 patch cable Attach one end of the patch cable at the wall plate and the other to the station port see Figure 3 4 NOTE A Type 3 Media Filter must be installed at the station end of the lobe cable when connecting UTP lobe cabling between an active UTP concentrator module and a token ring station without an internal f...

Страница 32: ...on that is inserted into the ring The yellow 16MB LED should only be on if the concentrator module is set for 16 Mbit s ring speed If these conditions do not exist proceed to Chapter 4 Testing and Troubleshooting The concentrator is now ready for operation Before placing the network into service test the installation thoroughly to be sure that all stations are able to be addressed and that the dat...

Страница 33: ... the AC power source 120 Vac or 240 Vac and are powered on 2 Trace the ring path through the network to be sure that there are no breaks in the ring and that it is free from logical design errors While tracing the ring a Check each cable connection at the MIM b Verify the pinouts for every connection c Check the cable conductors for continuity Cable testers are available for this task d Check that...

Страница 34: ...nd status monitoring system Using LANVIEW your network troubleshooting personnel can quickly scan the LANVIEW LEDs to determine network status diagnose network problems and isolate faulty nodes or trunk segments The LANVIEW LED locations are shown in Figure 4 1 While the TRMIM 24A is shown in the illustration the locations and definitions apply to all four concentrator modules except that for the ...

Страница 35: ...mit insertion of the attached token ring station When both the PEN and LNK LED are lit for the same port the token ring station attached to that TCU port is inserted on the ring When this LED is not lit the associated port is disabled and insertion onto the ring is inhibited When this LED is flashing and the LNK LED is lit the device at that port is set at the wrong ring speed and the port is bypa...

Страница 36: ...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 Management Mode ...

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