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MRXI-22 AND MRXI-2410BASE-T HUBUSER’S GUIDE CABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03867-5005The Complete Networking Solution™

INTRODUCTION1-4 1.4 LANVIEW LEDS AND LCD DISPLAY Cabletron Systems’ LANVIEW Status Monitoring and Diagnostics System is a convenient troubleshooting

INTRODUCTION1-5 For specific information, refer to the applicable network management package user’s manual. 1.7 RELATED MANUALS Use the following manu

INTRODUCTION1-6

2-1 CHAPTER 2INSTALLATIONREQUIREMENTS/SPECIFICATIONS This chapter describes network guidelines, power requirements, and operating specifications for t

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-2 2.3 NETWORK GUIDELINES Take care in planning and preparing the connections and the cables for your networ

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-3 • Jitter - Intersymbol interference and reflections can cause jitter in the bit cell timing, resulting in

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-4 • Attenuation - The fiber optic cable must be tested with a fiber optic attenuation test set that is adjus

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-5 • Fiber optic budget is the combination of the optical loss due to the fiber optic cable, in-line splices,

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-6 2.3.5 Transceiver Requirements When you connect an external network segment, via a transceiver, to the MR

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-72.4 OPERATING SPECIFICATIONSThe operating specifications for the MRXI are described in this section. Cabletr

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-8JAM Output: Collisions are propagated through the network using the JAM signal of an alternating pattern of

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-9Ethernet Port - EPIM-T (10BASE-T Twisted pair Port)Internal Cabletron Systems TPT-T™ 10BASE-T Twisted Trans

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-10Parameter Typical Worst Worst Case TypicalValue Case Budget BudgetTransmitter Power 50/125 µm fiber: -13.0

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-11Parameter Typical Minimum MaximumTransmitter Peak Wave Length 1300 nm 1270 nm 1330 nmSpectral Width 60 nm

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-12Ethernet Port - EPIM-C (BNC Port)InternalTransceiver: Cabletron Systems TMS-3™ Transceiver.Termination: Th

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-13Console PortThe RJ-45 Console port supports access to a Local Management Console. The Console port support

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-14RCV (yellow): Indicates that the repeater is receiving a data packet on that segment.CPU (flashing green):

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-15SERVICEMTBF (MHBK-217D): >70,040 hrs. projectedMTTR: < 0.5 hr.PHYSICALDimensions: 2.8H x 17.0W x 13

INSTALLATION REQUIREMENTS/SPECIFICATIONS2-16

3-1CHAPTER 3INSTALLATIONThis chapter outlines the procedure for installing your MRXI and connecting it to a network. Ensure that your network meets th

i NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice.

INSTALLATION3-2Figure 3-1 Attaching the Strain Relief3.3 INSTALLING THE MRXIYou can mount the MRXI on a wall, a 19-inch rack, or place it free-standin

INSTALLATION3-3Figure 3-2 Rack Mount Brackets Installation3. With the mounting brackets installed, position the MRXI between the vertical frame member

INSTALLATION3-4Note: 1/4-inch Molly screw anchors for wall mounting are not included with the MRXI.1. Use the supplied screws to attach the wall mount

INSTALLATION3-5Figure 3-5 Wall Mounting the MRXI5. Tighten each of the anchor screws until the anchor expands holding the anchor firmly in the wall, t

INSTALLATION3-6Figure 3-6 Shelf or Table-top Installation3.4 CONNECTING THE MRXI TO THE POWER SOURCENote: The MRXI has a universal power supply. This

INSTALLATION3-73.5.1 Connecting the Network Port Cabling You attach unshielded twisted pair segments to the RJ-45 Network Ports on the front panel of

INSTALLATION3-8Figure 3-8 Cable Pin-outs - RJ-45 Network Portsc. Check the cable for continuity.d. Check that the twisted pair connection meets dB los

INSTALLATION3-9Figure 3-9 EPIM-T Cross-over SwitchTo connect a EPIM-T to a Twisted Pair Segment:1. Connect the twisted pair segment to the module by i

INSTALLATION3-10d. Check that the twisted pair connection meets dB loss and cable specifications outlined in 10BASE-T Twisted Pair Network Requirement

INSTALLATION3-11Figure 3-12 The EPIM-X3.5.4 Connecting a Fiber Optic Link Segment to an EPIM-F1, EPIM-F2, or EPIM-F3When connecting a fiber optic link

NOTICEii 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

INSTALLATION3-12cable from Cabletron Systems, it is labeled so that: at one end of the cable, one fiber is labeled 1, and the other fiber is labeled 2.

INSTALLATION3-13c. Verify that the fiber connection meets the dB loss specifications outlined in Fiber Optic Network Requirements.If a link still has

INSTALLATION3-143.5.6 Connecting an AUI Cable to an EPIM-ATo connect an EPIM-A to an external network segment, via an AUI Cable:1. Attach an external

INSTALLATION3-153.6 FINISHING THE INSTALLATIONThe MRXI is now ready for operation. Before placing the network into service, test the installation thor

INSTALLATION3-16

4-1CHAPTER 4TESTING AND TROUBLESHOOTINGThis chapter contains procedures for testing the MRXI after you connect it to the network. It also describes LA

TESTING AND TROUBLESHOOTING4-2• Network management has disabled the port. • The port is segmented either because the collision detector was on for mor

TESTING AND TROUBLESHOOTING4-3Figure 4-1 Test Connections for MRXI Segmentsa. one of the unshielded twisted pair (Network) ports or EPIM-T installed i

TESTING AND TROUBLESHOOTING4-4b. EPIM-F1 or EPIM-F2 installed in the MRXI:1.) Connect a properly functioning Cabletron Systems FOT-F Fiber Optic Trans

TESTING AND TROUBLESHOOTING4-54.3 USING LANVIEWLANVIEW is Cabletron Systems’ built-in visual diagnostic and status monitoring system. Using LANVIEW, y

iii CONTENTS CHAPTER 1 INTRODUCTION 1.1 USING THIS MANUAL... 1-11.2 GETTING HELP ...

TESTING AND TROUBLESHOOTING4-6LNK (Green)When this LED is lit, it indicates an established link between the associated twisted pair segment and the 10

TESTING AND TROUBLESHOOTING4-7Figure 4-3 LCD DisplayThe LCD displays four types of messages:• Static System Messages• Alarm Messages• Unsaved Initiali

TESTING AND TROUBLESHOOTING4-8MAC Address Displays the MAC address.00001dxxxxxxRAM Image Displays the revision number of theRev. xx.xx.xx Flash EEPROM

TESTING AND TROUBLESHOOTING4-9Displayed Messages CommentsPort xxxxxx Displays segmentation status ofSegmented network ports 1-24, EPIM-1 orEPIM-2.Port

TESTING AND TROUBLESHOOTING4-10Cable Redundancy Indicates redundant link enabledEnable Port xx at ports 1-24.No Messages in No Alarm messages.Queue xU

TESTING AND TROUBLESHOOTING4-11Cabletron CabletronTFTP Req. State TFTP in ProgressCabletron CabletronTFTP Complete Erasing FlashCabletron CabletronPro

TESTING AND TROUBLESHOOTING4-12

5-1CHAPTER 5LOCAL MANAGEMENTLocal Management provides unique management and control capabilities for the MRXI. Local Management supplies the tools to

LOCAL MANAGEMENT5-2Figure 5-1 Management Terminal ConnectionTable 5-1 lists the setup requirements for the local management terminal. If your terminal

LOCAL MANAGEMENT5-3Table 5-1 Terminal Setup Requirements5.1.1 Console Cable ConfigurationCabletron Systems supplies a console cable kit with the MRXI.

CONTENTSiv CHAPTER 4 TESTING AND TROUBLESHOOTING 4.1 INSTALLATION CHECK-OUT ...4-14.2 TESTING SEGME

LOCAL MANAGEMENT5-4Figure 5-2 Console Cable Pin-outsConnect the console cable to the MRXI as follows:1. Attach the male RJ-45 connector to the CONSOLE

LOCAL MANAGEMENT5-55.1.2 Modem Cable ConfigurationTo access Local Management with a modem use an RS-232 cable available from Cabletron Systems. This ca

LOCAL MANAGEMENT5-65.2 ACCESSING LOCAL MANAGEMENTAfter ensuring that your terminal is properly configured, and that the physical cable connections are

LOCAL MANAGEMENT5-73. Press the Return key.• If your password entry is invalid, the cursor returns to the beginning of the password entry field.• If yo

LOCAL MANAGEMENT5-8If you have super-user access, you can change the existing passwords by changing the community names. Only the community name assig

LOCAL MANAGEMENT5-9Basic-Read This allows read-only access to Local Management, but excludes read privileges to the Component Trap screen.Read-Only Th

LOCAL MANAGEMENT5-105. Use the arrow keys to highlight the SAVE command at the bottom of the screen and press the Return key (or press F6). The messag

LOCAL MANAGEMENT5-11Figure 5-7 Configuration Screen5.4.2 Configuration Screen FieldsThe following briefly explains each field on the Configuration screen.I

LOCAL MANAGEMENT5-12Default GatewayDisplays the default gateway for the MRXI. This field is not defined until an appropriate value is entered. The defau

LOCAL MANAGEMENT5-135. Enter the subnet mask into this field. The format for this entry is XXX.XXX.XXX.XXX with values for XXX being from 0 to 255.6.

1-1 CHAPTER 1INTRODUCTION Welcome to the Cabletron Systems MRXI-22 and MRXI-24 10BASE-T HUB User’s Guide . This manual provides installation instruc

LOCAL MANAGEMENT5-14To disconnect from a UPS through the Local Management:1. Use the arrow keys to highlight the Serial Port 2 Application: field.2. P

LOCAL MANAGEMENT5-15To set the Port ENABLE Override:1. Use the arrow keys to highlight the Port ENABLE Override field.2. Press the Return key. The adj

LOCAL MANAGEMENT5-16Figure 5-8 Trap Table Screen5.5.2 Trap Table Screen FieldsSNMP Community NameDisplays the community name to be included in the tra

LOCAL MANAGEMENT5-173. Use the arrow keys to highlight the Traps field and enter Y (or y) to send alarms from the MRXI to the workstation, and N (or n

LOCAL MANAGEMENT5-185.6.1 Accessing the SNMP Tools ScreenTo access the SNMP Tools screen from the Features Selection screen, use the arrow keys to hig

LOCAL MANAGEMENT5-19SetLets users with read-write and super-user authorization change modifiable MIB objects, using SNMP protocol. Get NextDisplays the

LOCAL MANAGEMENT5-20Other ways to view OIDs from the SNMP Tools screen, include walking, stepping, and cycling. Walk and cycle let you review several

LOCAL MANAGEMENT5-212. Enter the desired OID, or OID extension. (Press F9 to recall the last OID request. You can then modify the recalled OID as nece

LOCAL MANAGEMENT5-22To walk through:1. Highlight Walk, using the arrow keys, and press the Return key. “<INITIAL> OID (=|F9)” appears.2. Enter t

LOCAL MANAGEMENT5-23Figure 5-10 MRXI CLI Information ScreenMRXI-960 LOCAL MANAGEMENTCabletron MRXI Revision x.xx.xxCLI INFORMATIONTHIS SCREEN RESERVED

INTRODUCTION1-2 1.2 GETTING HELP If you need additional support related to the MRXI-22 or MRXI-24, or if you have any questions, comments, or suggest

LOCAL MANAGEMENT5-24

POWER SUPPLY CORDThe mains cord used with this equipment must be a 2 conductor plus ground type with minimum 0.75 mm square conductors and must incorp

INTRODUCTION1-3 The MRXI fully conforms to the IEEE 802.3 Repeater, AUI, and 10BASE-T specifications, and provides the flexibility to connect networks