Related Manuals for Cabletron Systems TRXMIM-24A
Summary of Contents for Cabletron Systems TRXMIM-24A
- Page 1 TRXMIM USER’S GUIDE MODELS 22A, 24A, 42A, 44A The Complete Networking Solution ™ CABLETRON SYSTEMS, P. O. Box 5005 Rochester, NH 03866-5005...
- Page 2 NOTICE 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.
- Page 3 FCC 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 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 EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY EXCLUSION OF WARRANTY. Cabletron in writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including Its documentation and media). CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO YOU BY CABLETRON IN WRITING, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABLITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH...
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Page 6: Table Of Contents
CHAPTER 1 INTRODUCTION 1.1 USING THIS MANUAL ......1-2 1.2 ABOUT THE TRXMIM FAMILY ....1-2 1.2.1 TCU Ports . - Page 7 CONTENTS 2.4.3 Ring Speeds ......2-9 2.4.4 Ring Sequence ......2-10 2.4.5 LANVIEW LEDs .
- Page 8 APPENDIX A INTRODUCTION TO FOUR-RING FNB FUNCTIONALITY A.1 Introduction........A-1 A.2 The Flexible Network Bus (FNB).
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Page 9: Chapter 1 Introduction
IN USE A U X 2 - 1 6 M b IN USE -PORTS- SWITCHING UTP TOKEN RING Figure 1-1. The TRXMIM-22A, TRXMIM-24A, TRXMIM-42A, and TRXMIM-44A Token Ring Port Switching Concentrator Modules. CHAPTER 1 INTRODUCTION TRXMIM-24A M G N T... -
Page 10: Using This Manual
Assignments and Port Switching) expands the number Token Rings available within an MMAC and enables MMAC users to switch ring connections between up to six Token Rings, without changing a single cable connection. TRXMIMs also offer: • complete compatibility with all Token Ring MIMs,... -
Page 11: Tcu Ports
Table 1-1 Port and Media List for TRXMIM Models TRXMIM-22A 12 - Unshielded RJ-45 ports TRXMIM-24A 24 - Unshielded RJ-45 ports TRXMIM-42A 12 - Shielded RJ-45 ports TRXMIM-44A 24 - Shielded RJ-45 ports... -
Page 12: Port Assignments And Port Switching
ABOUT THE TRXMIM FAMILY Unit) workgroups. See Section 1.2.4, Support for Passive MAU Workgroups. A c t i ve C irc ui try On each TCU port, TRXMIMs provide active circuitry which filters, equalizes, and amplifies all received signals before transmitting them to the next point on the ring. - Page 13 port-switching TRXMIM, Cabletron Systems offers alternative solutions. FNB ring segment B FNB ring wrapped at TRMMIM's right FNB interface. Figure 1-2. FNB ring 1 segmented to form two LANs Wi th Po rt Swi tc h in g When controlled by a management module which supports port switching, TRXMIMs and other port switching MIMs make use of additional pins in their FNB connectors to create three additional vertically stacked FNB rings as shown in Figure 1-3.
- Page 14 ABOUT THE TRXMIM FAMILY stations from ring to ring. To move a station from one ring to another, a user simply accesses the Local Management application and issues a new port assignment. The TRXMIM then switches the TCU’s port-to-ring connection internally, as illustrated in Figure 1-4, instantly connecting the station to the new ring.
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Page 15: Automatic Configuration At Power-Up
Automatic Configuration at Power-Up 1. 2. 3 A ut om ati c Conf ig u ra t io n a t P owe r-Up The management module in the TRXMIM’s host MMAC stores all user-configured port assignments in its NVRAM. Upon hub start-up or TRXMIM reset, the management module reissues its stored configurations to the TRXMIM so that all port assignments set before power-down are reinstated at next power-up. -
Page 16: Support For Passive Mau Workgroups
ABOUT THE TRXMIM FAMILY 1. 2. 4 Sup po rt f o r Passiv e MAU Work g roup s Whereas a station signals a TCU to open its interface by sending a phantom current down its lobe cable, a passive MAU can not provide phantom current. - Page 17 COMMON MAU CONFIGURATION When MAUs are daisy-chained, they are connected as single collective entity. The entire chain must be bypassed to isolate the hub from a single beaconing station. All stations lose connection if beaconing occurs on any station. Ring Ring MIM with Ring In / Ring Out...
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Page 18: Interaction With Other Mims In The Mmac
ABOUT THE TRXMIM FAMILY N o C onn ec ti on Re dun d a n cy The TRXMIM MAU configuration does not provide for the MAU’s redundant connection to the ring. In the common configuration, a MAU chain is dual-attached to the Token Ring LAN via both a Ring Out cable and a Ring In cable. -
Page 19: Lanview Leds
LANVIEW LEDs Thus FNB rings 2, 3, and 4 are extended across the MMAC as far as there are port switching modules to carry them. Port switching MIMs are also compatible with earlier single-ring MIMs (e.g. TRMIM) and will interconnect across FNB ring 1, but not across FNB rings 2, 3, or 4. -
Page 20: Further Information
FURTHER INFORMATION 1.3 FURTHER INFORMATION 1. 3. 1 R el at e d Man uals 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. -
Page 21: Getting Help
® By CompuServe By Internet mail: By Fax: By BBS: By mail: GO CTRON from any ! prompt support@ctron.com (603) 337-3075 (603) 337-3750 Cabletron Systems, Inc. P.O. Box 5005 Rochester, NH 03866-5005 Getting Help Page 1-13... -
Page 22: Chapter 2 Installation Requirements & Specifications Of Operation
INSTALLATION REQUIREMENTS & SPECIFICATIONS OF OPERATION Before attempting to install the TRXMIM, please review the recommendations, requirements, and specifications which are 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 the cabling and connections for the network. -
Page 23: Installation Recommendations
GENERAL CABLING CONSIDERATIONS page 5) UTP cables also meet these requirements. However, signal integrity relies not only upon the quality of the cable but also upon the quality of the connections. The connectors or terminators used add considerable losses and may drive signal attenuation below performance requirements. -
Page 24: Maximum Number Of Stations
• Token Ring signals should not be routed through UTP cables that exit a building or which are adjacent to cables either exiting a building or exposed to lightning strikes and power surges. • UTP cables that contain Token Ring signals should not be simultaneously used for applications which may impress high voltages (greater than 5 volts) with sharp rise or fall times, since the noise coupling from such signals could directly cause errors... -
Page 25: Utp Cable Categories
UTP CABLING SPECIFICATIONS 2.2.1 UTP Cable Categories Both UTP concentrator modules (TRXMIM-22A / 24A) support UTP cables classified as category 3, 4, and 5. UTP cable is categorized according to the following specifications. Table 2-2. UTP Cable Category Specifications Operating Cat. -
Page 26: Utp Cable Lengths To Stations
WARNING: Because Near-End Crosstalk (NEXT) contributes the majority of its detrimental effects near the end of a lobe cable, the quality of jumper cables and patch cables is most critical. Seek the highest practical grade. The quality of connectors and terminators is also critical. WARNING: Telephone Battery and Ringing voltages used in UTP telephone circuits could present a shock hazard and can damage Token Ring equipment if connected to Token Ring cabling. -
Page 27: Stp Cabling Specifications
STP CABLING SPECIFICATIONS recommended maximum lobe length should be reduced to keep crosstalk interference within acceptable levels when using category 3 cable. 2.3 STP CABLING SPECIFICATIONS Both STP concentrator modules (TRXMIM-42A / 44A) support all STP cables classified as IBM Types 1, 2, 6, and 9. All cables meeting the criteria for classification as IBM Type 1, 2, 6, or 9 meet Token Ring network performance requirements. -
Page 28: Stp Cable Lengths To Stations
IBM Type 6 consists of two STP of 26 AWG stranded wire for data. Because of its high attenuation, Type 6 is used only in patch panels or to connect devices to/from wall jacks. Attenuation for Type 6 cable is 3/2 x Type 1 cable (attenuation for 66 m of Type 6 = attenuation for 100 m of Type 1). -
Page 29: Trxmim Operating Specifications
TRXMIM OPERATING SPECIFICATIONS 2.4 TRXMIM 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. 2.4.1 Media Filters When connecting Token Ring stations that are not equipped with a Type 3 Media Filter to either of the active UTP concentrator modules (TRXMIM-22A / 24A), a Type 3 Media Filter, such as the Cabletron Systems TRMF or TRMF-2, must be installed in line with... -
Page 30: Ring Speeds
Each RJ-45 connector is encased in a metallic shield which provides a means of connection for the STP cable shield. When STP patch cable is used, 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. -
Page 31: Ring Sequence
TRXMIM OPERATING SPECIFICATIONS 2.4.4 Ring Sequence When multiple Token Ring MIMs (set to the same ring speed) are installed in adjacent slots within an MMAC, they are attached via the FNB and create a larger ring network. Multiple Token Ring MIMs are automatically attached (when possible) at power on, but the configuration can be modified via network management software, attaching or detaching adjacent MIMs. -
Page 32: Other Specifications
725-2(b), CSA, IEC, TUV, VDE Class A, and meets FCC Part 15, Class A limits. Ports: TRXMIM-22A / 42A: 12 RJ-45 TRXMIM-24A / 44A: 24 RJ-45 FNB rings 1 - 4 TRXMIM-42A / 44A: IBM Type 1, 2, 6, 9 (STP) -
Page 33: Service Projections
OTHER SPECIFICATIONS 2.5.4 Service Projections MTBF (Mean Time Between Failure) MTTR (Mean Time To Repair) Page 2-12 TRXMIM- TRXMIM- 22A/42A 24A/44A 592,098 hrs. 563,987 hrs. < 0.5 hr. < 0.5 hr. -
Page 34: Chapter 3 Installing The Trxmim
INSTALLING THE TRXMIM This chapter contains instructions for installing the TRXMIM into a Cabletron Systems MMAC product and for connecting Token Ring stations at the TRXMIM’s trunk coupling unit (TCU) ports. 3.1 GENERAL CONSIDERATIONS If the TRXMIM is installed in a hub equipped with a management module in Slot 1, TRXMIM jumper settings will be overridden by settings provided by the management module. -
Page 35: Installation
INSTALLATION FNB, (either an MMAC-M3FNB, MMAC-M5FNB, or an MMAC-M8FNB). Without the FNB, the individual MIMs will not be linked, but rather will form independent Token Ring networks. 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 the system. -
Page 36: Setting The Default Ring Speed Jumper
3.2.2 Setting the Default Ring Speed Jumper In the absence of a management module with port assigning capability, the TRXMIM can not receive instructions to switch its ports between rings, so all ports are defaulted to connect to FNB Ring 1. The Default Ring Speed jumper provides the default ring speed for FNB ring 1 only. -
Page 37: Installing The Trxmim Into An Mmac
INSTALLATION CONCENTRATOR MODULE MMAC-M8FNB Figure 3-9. Installing the TRXMIM 3.2.3 Installing the TRXMIM into an MMAC Note: The installer should be prepared to monitor the LANVIEW LEDs as described in Section 3.2.4, Boot-up Check. Because the sequence may proceed rapidly, please read Section 3.2.4 to prepare for this task before installing the TRXMIM. -
Page 38: Boot-Up Check
3.2.4 Boot-Up Check The chart below describes the LANVIEW LED activity for three instances of TRXMIM operation. The first represents the moment of power-on. The second and third both represent possible post boot-up modes: management mode and default mode. Because this is presented to assist in installation, it is assumed that no lobe cables are attached to the TRXMIM at the moment of power-up. -
Page 39: Connecting Lobe Cabling
INSTALLATION The LED activity presented above represents a power-up with no cables connected to the TRXMIM. See Section 4.2, LANVIEW LED SIGNALS, to determine appropriate activity for other start-up conditions. Because port assignments can be made only by a management module, the TRXMIM goes through a bypass period at each start-up to provide a time-window of opportunity during which a management module may announce its intention to make these... - Page 40 A Type 3 Media Filter must be used when connecting the UTP lobe cable from either of the active UTP TRXMIMs (TRXMIM-22A/24A) to a Token Ring station that is not equipped with an internal filter. A Type 3 Media Filter, such as the Cabletron Systems TRMF, provides impedance matching from the Type 3 (UTP) lobe cabling to the Type 1 (STP) interface provided with many Token Ring stations.
- Page 41 INSTALLATION Attaching Lobe Cabling at the Module Twisted pair lobe cabling from Token Ring stations can be connected to any TRXMIM port. To attach station cable at the TRXMIM: 1. Insert the male RJ-45 connector from one end of the station’s lobe cable or Type 3 patch cable into any TCU port (1X through 12X or 24X) on the front of the TRXMIM (see Figure 3-11).
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Page 42: Pre-Operational Testing
Pre-Operational Testing 3.2.6 Pre-Operational Testing The TRXMIM should now be ready for operation. Before 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 relayed without error. -
Page 43: Chapter 4 Testing And Troubleshooting
TESTING AND TROUBLESHOOTING This section contains procedures to verify that the connections between the TRXMIM 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 confirm proper installation of the TRXMIM: 1. -
Page 44: Lanview Led Signals
LANVIEW LEDs (shown in Figure 4-12) to determine network status, diagnose network problems, and isolate faulty nodes or trunk segments. Figure 4-12. TRXMIM LANVIEW LEDs Page 4-2 TRXMIM-24A M G M T RING1-16Mb IN USE RING2-16Mb... -
Page 45: Lanview Led Definitions Table
4.2.1 LANVIEW LED Definitions Table The locations shown and the following definitions apply to LANVIEW LEDs of all four TRXMIMs (model -24A is shown in the figure), except that ports 13 through 24 and the LEDs associated with them are not present on the TRXMIM-22A and TRXMIM-42A. Table 4-1: LANVIEW LED Status Descriptions LED status (off) -
Page 46: Err - Error
LANVIEW LED SIGNALS Note: “Linked” describes an electromechanical connection between a concentrator module’s TCU port and a station. “Inserted” describes a data connection between a station and a LAN (via the concentrator module). 4.2.2 ERR - Error This LED should not turn on during normal operations. When lit, this RED LED indicates a hardware failure within the module. -
Page 47: Mgmt - Management Mode
command, they operate as isolated rings, just like the Auxiliary rings. Bypass mode does not necessarily mean that the TRXMIM is devoid of network activity. Even if all FNB channels are bypassed from the backplane, the TRXMIM may host up to six active LANs. -
Page 48: In Use - Ring In Use
LANVIEW LED SIGNALS assignments take effect immediately at start-up, but are relevant only if the module boots into default mode. In default mode, although the LEDs will be YELLOW for FNB rings 2, 3, 4 and Aux rings 1, 2, the rings will still be inaccessible. In management mode, all ring speeds are set by the management module. -
Page 49: Port - Port Status
4.2.7 PORT - Port Status This LED indicates the status of the connection at the TCU. If at power-on, the LED for any port is: RED, the port is disabled. At power on, all ports are looped back (disabled) until the module comes out of bypass mode and returns to normal operations. - Page 50 LANVIEW LED SIGNALS If, during normal operation, the LED for a Ring Out port is: GREEN, the Ring Out port is active (carrying data) and inserted 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.
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Page 51: Introduction To Four-Ring Fnb Functionality
APPENDIX A INTRODUCTION TO FOUR-RING FNB FUNCTIONALITY A.1 Introduction This appendix addresses only Token Ring network applications. It is intended to introduce and explain the closely related concepts of port switching and the four-ring Flexible Network Bus (FNB). These concepts reflect recent developments essential to the basic functionality of a number of Cabletron products. - Page 52 FNB Operations Without Port Switching right-wrapping abilities may “wrap” (bypass) their Ring In /Ring Out connections, effectively segmenting the FNB into two or more smaller, isolated Token Ring LANs, as illustrated in Figure A-1. FNB ring segment B FNB ring wrapped at TRMMIM's right FNB interface. Figure A-1.
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Page 53: Fnb Operations With Port Switching
FNB Operations With Port Switching Management of Segmented FNB Rings If the FNB is segmented, as shown in Figure A-1, the modules on one segment are isolated from modules on another FNB segment; management interfaces with one ring are isolated from other FNB segments as well. - Page 54 FNB Operations With Port Switching Segmented FNB ring 1 TRXMIM-22A made by Token Ring Management Module MGNT RING1-16Mb IN USE RING2-16Mb IN USE are executed internally by TRXMIM. RING3-16Mb IN USE RING4-16Mb IN USE A U X 1 - 1 6 M b IN USE A U X 2 - 1 6 M b IN USE...
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Page 55: Configuration Specifications
Configuration Specifications 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 interface, port-assigning management modules provide for multiple ring interfaces, making it possible for a single management module to fully manage any or all of the rings in the hub. - Page 56 Configuration Specifications ring and are not affected by the utilization of FNB rings 2, 3, or 4 by other MIMs in the MMAC. 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.