Cabletron Systems TRXMIM-24A User Manual Download

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CABLETRON SYSTEMS, P. O. Box 5005 Rochester, NH 03866-5005

The Complete Networking Solution

™

TRXMIM

USER’S

GUIDE

MODELS 22A, 24A, 42A, 44A

Summary of Contents for TRXMIM-24A

Page 1: ...CABLETRON SYSTEMS P O Box 5005 Rochester NH 03866 5005 The Complete Networking Solution TRXMIMTM USER S GUIDE MODELS 22A 24A 42A 44A...

Page 2: ...F 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 February 1996 by Cable...

Page 3: ...operator 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 c...

Page 4: ...D DISCLAIMER OF LIABILITY IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT PROMPTLY RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND CABLETRON SOFTWARE PROGRAM LICENSE 1 LICENSE...

Page 5: ...RON PRODUCT EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES OR O...

Page 6: ...elated Manuals 1 12 1 3 2 Recommended Reading 1 12 1 3 3 Getting Help 1 13 CHAPTER 2 INSTALLATION REQUIREMENTS SPECIFICATIONS OF OPERATION 2 1 GENERAL CABLING CONSIDERATIONS 2 1 2 1 1 Network Performa...

Page 7: ...ATION 3 2 3 2 1 Unpacking the TRXMIM 3 2 3 2 2 Setting the Default Ring Speed Jumper 3 3 3 2 3 Installing the TRXMIM into an MMAC 3 4 3 2 4 Boot Up Check 3 5 3 2 5 Connecting Lobe Cabling 3 6 3 2 6 Pr...

Page 8: ...TRODUCTION TO FOUR RING FNB FUNCTIONALITY A 1 Introduction A 1 A 2 The Flexible Network Bus FNB A 1 A 3 FNB Operations Without Port Switching A 1 A 4 FNB Operations With Port Switching A 3 A 5 Configu...

Page 9: ...3 16Mb RING2 16Mb RING1 16Mb BYP IN USE IN USE IN USE IN USE IN USE MGNT ERR PORTS TRXMIM 24A SWITCHING UTP TOKEN RING 12 6 11 5 10 4 9 3 8 2 7 1 IN USE AUX2 16Mb AUX1 16Mb RING4 16Mb RING3 16Mb RING2...

Page 10: ...TRXMIM model Chapter 3 Installing the TRXMIM contains instructions for installing the TRXMIM into a Multi Media Access Center MMAC and attaching Token Ring station cabling Chapter 4 Testing and Troubl...

Page 11: ...e RJ 45 modular connector jack to support the attachment of either STP shielded twisted pair or UTP unshielded twisted pair cabling with RJ 45 connector plugs Models that support STP cabling use RJ 45...

Page 12: ...ted from the ring The TRXMIM then provides a simple visible LED signal to indicate to network managers that Speed Fault Protection has disabled the port The port stays disabled until re enabled by man...

Page 13: ...vertically stacked FNB rings as shown in Figure 1 3 The FNB itself does not change but these modules change the way it is used Figure 1 3 FNB Expanded to Four Rings by Port Switching MIMs TRXMIMs are...

Page 14: ...the FNB they function as complete independent Token Rings within the module This brings the connectivity total to six Token Rings accessible from any TRXMIM port two isolated auxiliary rings within th...

Page 15: ...e not available the device uses the configurations dictated by its hardware default settings Assignments from a management module always override the TRXMIM s hardware defaults Default Port Assignment...

Page 16: ...U Multi Station Access Unit workgroups Note The output of the TRXMIM s LANVIEW LEDs for a Ring Out port is quite different from the output for a station lobe port See Section 4 2 LANVIEW LED SIGNALS f...

Page 17: ...AU station The 8 stations on that MAU still go down but the remaining MAUs and their stations stay operational 8 Stations 8 Stations 8 Stations 8 Stations Multi Station Access Units MIM with Ring In R...

Page 18: ...to an MMAC to increase the number of ports available on a Token Ring network Any TRXMIM installed within an MMAC may be connected to other Token Ring MIMs repeaters bridges and management modules with...

Page 19: ...FNB rings 2 3 and 4 require contiguous contact with other port switching MIMs to maintain ring continuity 1 2 6 LANVIEW LEDs The LANVIEW LED system is Cabletron Systems built in at a glance visual dia...

Page 20: ...428 1 3 2 Recommended Reading The following publications are recommended if more information is required regarding the implementation of Token Ring networks Local Area Networks Token Ring Access Metho...

Page 21: ...tting Help Page 1 13 By CompuServe GO CTRON from any prompt By Internet mail support ctron com By Fax 603 337 3075 By BBS 603 337 3750 By mail Cabletron Systems Inc P O Box 5005 Rochester NH 03866 500...

Page 22: ...the reliability of data propagation on the network The quality of the connections the length of cables and other conditions of the installation are critical factors in determining the reliability of...

Page 23: ...ity of cable connections contribute considerably to noise levels If noise induced errors are suspected it may be necessary to re route cabling away from potential noise sources or to ensure that the e...

Page 24: ...U port Where practical dedicated cable should be used for Token Ring signals Work area wall plates and outlets used for the Token Ring network should be clearly labeled as Token Ring network lobe conn...

Page 25: ...G At 16 Mb s ring speeds some Category 3 cable does not meet the performance requirements of a Token Ring network This may impose lower limits on lobe cable distances and ring node counts See Table 2...

Page 26: ...station to a TCU port on the concentrator is referred to as the lobe length The maximum lobe length attainable with the concentrator under ideal conditions is shown in Table 2 3 Cable routing connect...

Page 27: ...ype 1 consists of two shielded twisted pairs STP of 22 AWG solid wire for data Used for the longest cable runs within the walls of buildings IBM Type 2 consists of six pairs of unshielded twisted pair...

Page 28: ...9 100 m of Type 1 2 3 2 STP Cable Lengths to Stations The physical length of the cable connecting a station to a TCU port on the concentrator is referred to as the lobe length The maximum lobe length...

Page 29: ...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 Token Ring station connection 2 4 2 Connector Types The concentrator mo...

Page 30: ...Figure 2 7 STP Adapter Patch Cable PN 9372057 8 2 4 3 Ring Speeds The default ring speed for FNB ring 1 which is used in the absence of configuration commands from a management module is selected by t...

Page 31: ...o the specified ring Begin with the lowest numbered right most slot and list in numerical order each port inserted into the ring Repeatedly move to the next slot one position to the left and list the...

Page 32: ...2 Environmental Requirements Environmental Operating Temperature 5 to 40 C Storage Temperature 30 to 90 C Relative Humidity 5 to 95 non condensing 2 5 3 Safety Issues WARNING It is the responsibility...

Page 33: ...OTHER SPECIFICATIONS Page 2 12 2 5 4 Service Projections TRXMIM 22A 42A TRXMIM 24A 44A MTBF Mean Time Between Failure 592 098 hrs 563 987 hrs MTTR Mean Time To Repair 0 5 hr 0 5 hr...

Page 34: ...efault to and have access only to FNB ring 1 Check that all requirements listed in Chapter 2 Installation Requirements Specifications have been met before installing and operating the TRXMIM The follo...

Page 35: ...es the use of a bridging device 3 2 INSTALLATION Contact Cabletron Systems Technical Support immediately if you encounter any problems unpacking or installing the module 3 2 1 Unpacking the TRXMIM Unp...

Page 36: ...y FNB rings 2 3 4 and Auxiliary rings 1 2 always default to 16 Mb s Position the jumper on the proper pins on the TRXMIM as illustrated in Figure 3 8 to select either 4 or 16 Mb s as the default netwo...

Page 37: ...e the coverplate from the selected MMAC slot and slide the TRXMIM into the MMAC chassis see Figure 3 9 Be sure that the card is in the card guides at the top and bottom of the chassis 2 Secure the mod...

Page 38: ...ivity see Section 4 2 LANVIEW LED SIGNALS When the Port LEDs turn from RED to off start up is complete Boot up may take a few minutes If the boot up does not proceed as described above refer to Chapte...

Page 39: ...been programmed by management or has gone to default mode the TRXMIM returns to normal operations 3 2 5 Connecting Lobe Cabling The physical lobe connection from the TRXMIM to the Token Ring station...

Page 40: ...atch cables that adapt a shielded RJ 45 to a Data Connector MIC are available from Cabletron Systems These adapter patch cables permit connection to a pre existing patch panel equipped with data conne...

Page 41: ...the cable to the appropriate patch panel jack 3 Repeat these steps for each station Attaching Lobe Cabling at the Station Connect stations to the TRXMIM using Type 3 patch cables Attach one end of th...

Page 42: ...placing the network into service proceed to Chapter 4 Testing and Troubleshooting and test the installation thoroughly to be sure that all stations are able to be addressed and that data is being rel...

Page 43: ...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...

Page 44: ...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 monitoring system...

Page 45: ...tatus Descriptions LED LED status Meaning ERR off Normal operation RED Hardware Error condition BYP YELLOW No ports inserted in FNB rings MGMT off Internal default settings in effect GREEN TRXMIM has...

Page 46: ...f its ports in loopback while it awaits configuration settings from a management module After the TRXMIM completes its start up procedure either the TRXMIM has been programmed by management or has gon...

Page 47: ...ith FNB ring 1 speed set according to the Default Ring Speed Jumper This LED may also be OFF during normal boot up before communications have been established between the TRXMIM and a management modul...

Page 48: ...ing It does not reflect ring activity that excludes this TRXMIM e g on rings bypassed from the TRXMIM If the LED is OFF no ports are inserted into the associated ring GREEN at least one port on the mo...

Page 49: ...out of bypass mode and returns to normal operations When the TRXMIM is ready the ports will be switched to their respective rings and all suspended ports will be inserted into those rings If during no...

Page 50: ...serted into the ring BLINKING RED the Ring Out port is in a normal inactive state This is equivalent to OFF for a lobe port during normal operation Refer to Section 1 2 4 Support for Passive MAU Workg...

Page 51: ...IM and all Management Modules e g TRMM 2 that support port switching A 2 The Flexible Network Bus FNB The FNB is a data bus which spans the entire width of the backplane of the Multi Media Access Cent...

Page 52: ...ng LANs as illustrated in Figure A 1 Figure A 1 FNB segmentation produces two isolated FNB rings Figure A 2 Four vertically stacked FNB rings TRMIM TRMIM TRMIM TRMM TRMIM TRMIM TRMIM TRMMIM FNB ring w...

Page 53: ...pins in its FNB connector to create four vertically stacked parallel FNB rings as illustrated in Figure A 2 With simultaneous access to four rings port switching MIMs assign each of their concentrato...

Page 54: ...TRMM 2 FNB ring 1 FNB ring 2 FNB ring 4 FNB ring 3 Port Assignments made by Token Ring Management Module are executed internally by TRXMIM Electronic reassignment of Port 12 from Ring 2 to Ring 4 TRX...

Page 55: ...B rings 1 2 3 and 4 FNB ring 1 is the same ring that has connected all earlier generation single ring MIMs e g TRMIM and was addressed in earlier manuals as the FNB ring or simply the FNB The term the...

Page 56: ...Port switching MIMs do not have the ability to wrap segment the FNB they are automatically and internally connected to the MIMs adjacent to them via the MMAC chassis However a neighboring single ring...

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