Related Manuals for Cabletron Systems MRX
Summary of Contents for Cabletron Systems MRX
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Page 1: Installation Guide
MRX/MRX-2 AND MRXI/MRXI-2 10BASE-T HUB INSTALLATION GUIDE INC. The Complete Networking Solution CABLETRON SYSTEMS, P.O. Box 5005, Rochester, NH 03867-5005... - Page 2 All Rights Reserved Printed in the United States of America Order number: 9030313 March 91 MRX, MRX-2, MRXI, MRXI-2, LANVIEW, SPIM-T, SPIM-T1, TMS-3, FOT-F, TPT-T, SPIM-F1, SPIM-F2, SPIM-C, SPIM-A, Remote LANVIEW/Windows, SPECTRUM, and LAN-MD are trademarks of Cabletron Systems, Inc.
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Page 3: Fcc Notice
• Move the MRX/MRXI away from the antenna. • Plug the MRX/MRXI into a different outlet so that the MRX/MRXI and the receiver are on different branch circuits. If necessary, the user should consult the dealer or an experienced radio/ television technician for additional suggestions. The user may... -
Page 4: Table Of Contents
3.3.3 Free-Standing Installation ... 3-7 3.4 Connecting The HUB To The Power Source ... 3-7 3.5 Connecting The HUB To The Ethernet Network ... 3-8 3.5.1 Connecting The Network Port Cabling (MRX/MRXI)... 3-8 3.5.2 Connecting The Network Port Cabling (MRX-2/MRXI-2) ... 3-8 3.5.3 Connecting A Twisted Pair Segment To A SPIM-T ... - Page 5 CONTENTS CHAPTER 3 (cont.) 3.5.5 Connecting A Fiber Optic Link Segment To A SPIM-F1Or SPIM-F2 ... 3-11 3.5.6 Connecting A Thin-Net Segment To A SPIM-C ... 3-14 3.5.7 Connecting An AUI Cable To A SPIM-A ... 3-15 3.6 Finishing The Installation... 3-16 CHAPTER 4 TESTING AND TROUBLESHOOTING 4.1 Installation Check-Out ...
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Page 6: Chapter 1 Introduction
NOTE: The term HUB is used throughout this manual when describing features and functions that are common to all of the devices listed above. The terms MRX, MRX-2, MRXI and MRXI-2 are only used when it is necessary to describe features that are unique to a specific device. -
Page 7: Using This Manual
INTRODUCTION The MRX is functionally identical to the MRX-2 and the MRXI is functionally identical to the MRXI-2. The MRX and MRXI provide a 50-pin Champ connector for ports 1 through 12, and the MRX-2 and MRXI-2 provide twelve RJ-45 connectors. -
Page 8: The 10Base-T Hub
Optic Interface Modules (SPIM-F1 or SPIM-F2). • Thin-Net Cable from the Coaxial Interface Module (SPIM-C). • AUI Cable, to an external transceiver, from the AUI Interface Module (SPIM-A). Figure 1-1. MRX, MRX-2, MRXI and MRXI-2 10BASE-T HUBs INTRODUCTION Page 1-3... - Page 9 The MRXI provides an RS-232 Console port (not available in the MRX) that supports a Digital Equipment Corporation™, VT220™ or PC emulation of the VT220™ terminal. The terminal serves as a local management console, providing out-of-band access to MRXI/ LM™, Local Management for the Cabletron Systems MRXI/MRXI-2.
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Page 10: Related Manuals
The MRXI/MRXI-2 can also be controlled and managed in-band using Cabletron Systems’ LANVIEW/Windows, SPECTRUM, and SNMP network control management software. 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 contained in these manuals will be referenced where appropriate, rather than repeated. - Page 11 INTRODUCTION Page 1-6...
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Page 12: Chapter 2 Installation Requirements/ Specifications
REQUIREMENTS/SPECIFICATIONS This Chapter describes the network and power requirements and operating specifications for the MRX, MRX-2, MRXI, and MRXI-2 10BASE-T HUBs. Before you attempt to install any of these HUBs, review the installation requirements and operating specifications that are outlined in this chapter. Your network installation must... -
Page 13: Network Guidelines
REQUIREMENTS/SPECIFICATIONS • If a shelving unit is to be used, it must be able to support 30 pounds of static weight. • The temperature for the selected location must be maintained between 5 and 50 C, and less than 10 C per hour temperature change. - Page 14 As a general rule, links up to 130 meters in length for unshielded twisted pair and 200 meters in length for shielded twisted pair are achievable. For each connector or patch panel in the link, subtract 12 meters from the 150 meter limit. This will allow for links of up to 126 meters using standard 24 AWG UTP wire and two patch panels within the link.
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Page 15: Fiber Optic Network Requirements
REQUIREMENTS/SPECIFICATIONS • Noise - Noise can be caused by either crosstalk or externally induced impulses. Impulse noise may cause data errors if the impulses occur at very specific times during data transmission. Generally, the user need not be concerned about noise. If noise- related data errors are suspected, it may be necessary to either reroute the cable or eliminate the source of the impulse noise. -
Page 16: Thin-Net Network Requirements
• Budget and Propagation Delay - When determining the maximum fiber optic cable length, the fiber optic budget delay and total network propagation should be calculated and taken into consideration before fiber optic cable runs are incorporated in any network design. Fiber optic budget is the combination of the optical loss due to the fiber optic cable, in-line splices, and fiber optic connectors. -
Page 17: Transceiver/Aui Requirements
REQUIREMENTS/SPECIFICATIONS WARNING: Do not connect the shield at both ends of a thin net segment to ground. Only one end of the shield should be connected to earth ground. The BNC ports of the Coaxial Interface Modules are not connected to earth ground. 2.3.4 Transceiver/AUI Requirements When connecting an external network segment, via a transceiver and an AUI cable, to the HUB with a Single Port AUI Interface module... -
Page 18: Operating Specifications
Cabletron Systems reserves the right to change these specifications at any time without notice. GENERAL Packet Buffer Memory (RAM): 64 KB Internal Processor: Ethernet Controller: Static RAM: EPROM: MRX/MRX-2 and MRXI/MRXI-2 Delay Times: Start of Packet: JAM: Preamble: Input: Output: JAM Output:... - Page 19 For further information, refer to the TPT-T Twisted Pair Transceiver User’s Manual. MRX/MRXI 50-Pin Champ Connector Signal RX1+ TX1+ RX2+ TX2+ RX3+...
- Page 20 Signal RX8+ TX8+ RX9+ TX9+ RX10+ TX10+ RX11+ TX11+ RX12+ TX12+ MRX-2/MRXI-2 Internally Crossed Over RJ-45 Jack (12) No Connection No Connection No Connection Twisted Pair Transceiver Internally Crossed Over RJ-45 Jack No Connection No Connection No Connection Wire Color...
- Page 21 REQUIREMENTS/SPECIFICATIONS ETHERNET PORT - SPIM-T1 (10BASE-T TWISTED PAIR PORT) Internal Transceiver: Cabletron Systems’ TPT-T 10BASE-T Type: No Connection No Connection No Connection ETHERNET PORT - SPIM-F1 OR SPIM-F2 (FIBER OPTIC PORT) Internal Transceiver: Cabletron Systems’ FOT-F™ Type: SPIM-F1: SPIM-F2: Parameter Receive Sensitivity: Peak Input...
- Page 22 NOTE: The transmitter power levels and receive sensitivity levels given above are Peak Power Levels after optical overshoot. A Peak Power Meter must be used to correctly compare the values given above to those measured on any particular port. If Power Levels are being measured with an Average Power Meter, then 3 dBm must be added to the measurement to correctly compare those measured values to the values listed above (i.e.
- Page 23 REQUIREMENTS/SPECIFICATIONS ETHERNET PORT - SPIM-A (AUI PORT) Interface Connector: Type: Logic Ref. Collision + Transmit + Logic Ref. Receive + Power Return No Connection Logic Ref. Connector Shell: CONSOLE PORT (MRXI/MRXI-2 Only) The Console (RS-232) Port supports access to Remote LANVIEW via a Local Management Console connected at the front panel of the MRXI/MRXI-2.
- Page 24 POWER SUPPLY REQUIREMENTS NOTE: The HUB has a universal power supply. This unit allows you to use an input power from 85 to 264 VAC, 47-63 Hz. Parameter Input Current: MRX/MRX-2 MRXI/MRXI-2 Overload Protection - Output: REQUIREMENTS/SPECIFICATIONS Indicates that the repeater is receiving power.
- Page 25 : It is the responsibility of the person who sells the system to which the HUB will be a part to ensure that the total system meets allowed limits of conducted and radiated emissions. SERVICE MTBF (MHBK-217D): MRX/MRX-2 MRXI/MRXI-2 MTTR: PHYSICAL Dimensions:...
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Page 26: Chapter 3 Installation
This chapter outlines the procedure for installing an MRX, MRX-2, MRXI, or MRXI-2 10BASE-T HUB and connecting it to your network. Be sure that the guidelines and requirements outlined in Chapter 2, Requirements/Specifications, are met before installing the HUB. 3.1 UNPACKING THE HUB Before you install the HUB, you should check the contents of the accessory package. -
Page 27: Attaching The Strain Relief Bracket
INSTALLATION 3.2 ATTACHING THE STRAIN RELIEF BRACKET Attach the strain relief bracket to the front of the HUB as follows: 1. Locate the strain relief bracket and four 8-32 x 3/8" screws from the HUB installation kit. 2. Attach the strain relief bracket to the rear of the HUB as shown in Figure 3-1. -
Page 28: Rack Mounting The Hub
3.3.1 Rack Mounting the HUB Refer to Figure 3-2 and perform these steps to install the HUB in a 19-inch rack. 1. Remove four cover screws (two from each side) located along the rear edges of each end of the HUB. 2. -
Page 29: Wall Mounting The Hub
INSTALLATION Figure 3-3. Installing the HUB in the Rack 3.3.2 Wall Mounting the HUB The HUB can be wall mounted in either of two positions. Select one of the following procedures to provide the desired wall mounting orientation. Flat Mounting When the HUB is flat-mounted on a wall surface, it must be installed with the cable connections facing down. - Page 30 Figure 3-4. Flat Wall Mounting 3. Select a wall location for the HUB within 7 feet of a power outlet. WARNING: There is a potential SHOCK HAZARD if there is electrical wiring within the wall that interferes with drilling for pilot holes.
- Page 31 INSTALLATION 5. Set the HUB aside and carefully drill four 1/4" pilot holes, one for each of the Molly screw anchors and insert the four Molly screw anchors into the holes just drilled. 6. Tighten each of the anchor screws until the anchor expands holding the anchor firmly in the wall, then remove the screws completely.
- Page 32 4. You will need a pencil for this step. With the wall mounting brackets attached to the HUB, position the HUB against the wall where it will be permanently mounted. Using your pencil, mark the wall location for the four pilot holes, using the outermost holes as indicated in Figure 3-5.
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Page 33: Free-Standing Installation
INSTALLATION 3.3.3 Free-Standing Installation For a free-standing installation, locate the HUB within 7 feet of its power source and with an unrestricted free surface area 21 inches wide, 18 inches deep and 6 inches high. Figure 3-6. Shelf or Table-top Installation 3.4 CONNECTING THE HUB TO THE POWER SOURCE Connect the HUB to the power source as follows: NOTE: The HUB has a universal power supply. -
Page 34: Connecting The Hub To The Ethernet Network
SPIM-A 3.5.1 Connecting the Network Port Cabling (MRX/MRXI) The MRX and MRXI Network Port cabling uses a 50-pin Champ connector to attach up to twelve unshielded twisted pair segments to the HUB. The Network feeder cable typically connects to a punch-... - Page 35 INSTALLATION Pin 1 Figure 3-7. MRX-2 and MRXI-2 Network Port 2. Check that the associated LNK LED for the port is lit. If the LED is not lit, perform each of the following steps until it is: a. Check that the 10BASE-T device at the other end of the twisted pair segment is powered up.
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Page 36: Connecting A Twisted Pair Segment To A Spim-T
3.5.3 Connecting a Twisted Pair Segment to a SPIM-T The X to the left of the RJ-45 port on the SPIM-T indicates that the port is internally crossed over. This eliminates the need to cross over the twisted pair segment attached to the SPIM-T port. To connect a SPIM-T to a Twisted Pair Segment: 1. -
Page 37: To A Spim-T1
INSTALLATION NOTE: RX+/RX– and TX+/TX– must share a common color pair. Figure 3-10. Cable Pinouts - SPIM-T RJ-45 Port If a link still has not been established, contact Cabletron Systems Technical Support. 3.5.4 Connecting an STP Segment to a SPIM-T1 The Shielded Twisted Pair segment that attaches to the SPIM-T1 must be wired according to the pinout shown in Figure 3-12. - Page 38 RX– NOTE: RX+/RX– and TX+/TX– must share a common color pair. TX– Figure 3-12. Cable Pinouts - SPIM-T1 2. Check that the Link LED is lit. If the LED is not lit, perform each of the following steps until it is: a.
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Page 39: Connecting A Fiber Optic Link Segment To A
INSTALLATION 3.5.5 Connecting Fiber Optic Link Segments When connecting a fiber optic link segment to a SPIM-F1 or a SPIM-F2, you must keep the following in mind: • If you are connecting a fiber optic link segment with SMA 906 connectors to a SPIM-F1 with SMA ports, ensure that half alignment sleeves are in place on each connector. -
Page 40: Spim-F1
To connect a fiber optic link segment to a SPIM-F1 or a SPIM-F2: 1. Remove the protective plastic covers from the fiber optic ports on the applicable port on the module and from the ends of the connectors on each fiber strand. 2. -
Page 41: Connecting A Thin-Net Segment To A Spim-C
INSTALLATION Verify that the fiber connection meets the dB loss specifications outlined in Fiber Optic Network Requirements. If a link still has not been established, contact Cabletron Systems Technical Support. 3.5.6 Connecting a Thin-Net Segment to a SPIM-C To connect a thin-net segment to a SPIM-C: 1. -
Page 42: Connecting An Aui Cable To A Spim-A
Figure 3-14. Connecting a Thin-Net Segment to a SPIM-C Internal Termination Switch in Off Position 3.5.7 Connecting an AUI Cable to a SPIM-A To connect a SPIM-A to an external network segment, via an AUI Cable: 1. Attach an external transceiver to the network segment that will be connected to the AUI port. -
Page 43: Finishing The Installation
INSTALLATION Figure 3-15. Connecting an External Transceiver SPIM-A 5. Check that the PWR LED on the HUB is lit. If the PWR LED is not lit, disconnect the AUI cable connecting the HUB and the transceiver. If the PWR LED is still not lit, the fuse on the SPIM-A is defective and should be replaced by qualified service personnel. -
Page 44: Chapter 4 Testing And Troubleshooting
TESTING AND TROUBLESHOOTING This chapter contains procedures to test the HUB after it has been connected to the network. A description of LANVIEW and its function in troubleshooting physical layer network problems is also provided. 4.1 INSTALLATION CHECK-OUT After the HUB has been connected to the network, verify that packets can be passed between all Ethernet devices connected to the HUB and any other devices connected to the network. -
Page 45: Testing Segments Attached To The Hub
TESTING AND TROUBLESHOOTING 2. If the LINK LED for any of the twisted pair segments (Ports 1-12 or SPIM-T/T1) flashes when the HUB is powered on or when the segment is first attached, it indicates a polarity reversal for that segment. - Page 46 To test any link; select two links, the link being tested and a second link, one that is known to be operating properly, and perform the following steps: NOTE: The flexibility of the HUB permits a variety of media combinations, resulting in many possible test configurations. Since it is impossible to cover every combination of network media and HUB configuration, minor adjustments to the testing procedures given here may be necessary to test your specific configuration.
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Page 47: Testing And Troubleshooting
TESTING AND TROUBLESHOOTING SPIM-F1/2 10BASE-T FOT-F LAN-MD AUI CABLE AUI CABLE SPIM-C LAN-MD AUI CABLE LAN-MD AUI CABLE 10BASE-T SPIM-A Figure 4-1. Test Connections for HUB Segments d. SPIM-A installed in the HUB: Attach an external transceiver to the segment coming from the port on the SPIM-A. -
Page 48: Using Lanview
2. Select and run test 6 - SERVER on either LAN-MD connected to the Ethernet network on either side of the wide area link. 3. Verify that the Test Status PASS LED is lit and that the Status Code reads 000 or 001. If these two conditions are met, the LAN-MD is now the SERVER unit and, when used with another LAN-MD, will echo packets. - Page 49 TESTING AND TROUBLESHOOTING MRX/MRX-2 and MRXI/MRXI-2 POWER (Green) When this LED is lit it indicates that the HUB is receiving power. When this LED is not lit it indicates a loss of input power. Check the input power source (circuit breaker, fuse, etc.). If the proper source power is present, the problem could be with the HUB.
- Page 50 TESTING AND TROUBLESHOOTING MRXI/MRXI-2 Only MGMT (Yellow) The management LED flashes for a management packet received for the MRXI/ MRXI-2 management. FAULT (Red) Indicates an error has been detected by the software. If this problem persists, contact Cabletron Systems Technical Support. Page 4-7...
- Page 51 TESTING AND TROUBLESHOOTING Page 4-8...
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Page 52: Chapter 5 Adding/Replacing Spims
ADDING/REPLACING SPIMs This chapter contains procedures to replace an existing Single Port Interface Module (SPIM) or install a new SPIM to upgrade the capabilities of your HUB. The chapter is divided into three sections, Opening the HUB, Removing a SPIM and Installing a SPIM. At the end of the physical installation, you should refer to Chapter 4, Testing and Troubleshooting, to verify proper operation of the HUB. -
Page 53: Removing A Spim
ADDING/REPLACING SPIMs Figure 5-1. Opening the HUB 5.2 REMOVING A SPIM The steps in this section describe removing an existing SPIM. You should use this procedure only if you are replacing an existing SPIM, either to change from one media type to another or to replace a SPIM that has failed. -
Page 54: Installing A Spim
3. Remove the Phillips screw near the left front corner of the SPIM that holds the SPIM to the standoff mounted on the mother board. Save the screw to install the new SPIM. 4. Slide the SPIM forward off the rear panel studs and remove the SPIM from the HUB. - Page 55 ADDING/REPLACING SPIMs 3. Fasten the SPIM to the rear panel studs with the previously removed washers and 1/4-inch hex nuts. Tighten the nuts with the special offset wrench. 4. Connect the SPIM interface cable to the 16-pin receptacle on the mother board.
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Page 56: Attaching Twisted Pair Segments To The Hub
TWISTED PAIR WIRING GUIDE The MRX/MRXI 10BASE-T HUB has a 50-pin Champ connector that allows you to run a 50-pin feeder cable from the HUB to a punch- down block. This Appendix serves as an aid to wiring punch-down blocks and twisted pair segments between your HUB and 10Base-T Ethernet devices. - Page 57 TWISTED PAIR WIRING GUIDE RJ-45 Female Receptacle RJ-45 and 50-Pin Punch-Down Block Table A-1 10BASE-T 25 PairFeeder 50-PINPUNCH-DOWN BLOCK RX– TX– Figure A-2. Typical Segment Wiring Page A-2 A B C D Figure A-1. Pin Layout Table A-2 Wall Plate Office Drop AUI Cable...
- Page 58 Table A-1. Twisted Pair Wiring at the HUB From HUB 50-pin 50-Pin Champ: Feeder Cable PIN PIN Port 12 Violet/Green Green/Violet Violet/Brown Brown/Violet Port 11 Violet/Blue Blue/Violet Violet/Orange TX+ A43 Violet/Orange TX+ Orange/Violet TX- A44 Orange/Violet TX- Port 10 Yellow/Brown RX+ A37 Yellow/Brown RX+ Brown/Yellow RX- A38 Brown/Yellow RX- Yellow/Gray Gray/Yellow...
- Page 59 TWISTED PAIR WIRING GUIDE Table A-1 (cont.). Twisted Pair Wiring at the HUB From HUB 50-pin 50-Pin Champ: Feeder Cable PIN PIN Port 6 Black/Blue Blue/Black Black/Orange Orange/Black Port 5 Red/Brown Brown/Red Red/Gray Gray/Red Port 4 Red/Orange Orange/Red Red/Green Green/Red Port 3 White/Gray Gray/White...
- Page 60 Table A-2. Twisted Pair Wiring from the Punch-Down Block to the 10Base-T Device From Punch-Down Block: Port 12 Violet/Green Green/Violet Violet/Brown Brown/Violet Port 11 Violet/Blue Blue/Violet Violet/Orange TX+ Orange/Violet TX- Port 10 Yellow/Brown RX+ Brown/Yellow RX- Yellow/Gray Gray/Yellow Port 9 Yellow/Orange RX+ Orange/Yellow RX- Yellow/Green...
- Page 61 TWISTED PAIR WIRING GUIDE Table A-2 (cont.). Twisted Pair Wiring from the Punch-Down Block to the 10Base-T Device From Punch-Down Block: Port 6 Black/Blue Blue/Black Black/Orange Orange/Black Port 5 Red/Brown Brown/Red Red/Gray Gray/Red Port 4 Red/Orange Orange/Red Red/Green Green/Red Port 3 White/Gray Gray/White Red/Blue...
- Page 62 POWER SUPPLY CORD The main cord used with this equipment must be a 2 conductor plus ground type with minimum 0.75 mm square conductors and must incorporate a standard IEC appliance coupler on one end and a main plug on the other end which is suitable for the use and application of the product and that is approved for use in the country of application.