- DL manuals
- Cabletron Systems
- Repeater
- MR-9T
- Installation Manual
Cabletron Systems MR-9T Installation Manual
Summary of MR-9T
Page 1
Cabletron systems, p. O. Box 5005, rochester, nh 03866-5005 mr9t ieee 802.3 10base-t mr9t-c ieee 802.3 10base-t/10base-2 multiport repeater installation guide.
Page 2: Notice
I 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 de...
Page 3: Fcc Notice
Ii fcc notice warning: this equipment has been tested and found to comply with the limits for a class a digital device, pursuant to part 15 protection against harmful interference when the equipment is operated in a commercial environment. This equipment uses, generates, and can radiate radio freque...
Page 4: Contents
Iii contents contents chapter 1 introduction 1.1 using this manual ....................................................................1-1 1.2 getting help ...............................................................................1-2 1.3 overview ...................................................
Page 5: Chapter 1
Page 1-1 introduction chapter 1 introduction the mr9t-c 10base-t/10base-2 multiport twisted pair repeater (figure 1-1) and the mr9t 10base-t multiport twisted pair repeater (figure 1-2) conform to all applicable ieee 802.3 specifications. Each repeater has nine ports. Ports 1 through 8 on both model...
Page 6
Page 1-2 introduction 1.2 getting help if you need additional support related to the mr9, or if you have any questions, comments, or suggestions related to this manual, contact cabletron systems technical support. Before calling, please have the following information ready: • the product type (mr9t ...
Page 7: Mr9T-C
Page 1-3 introduction term mr9t-c 802.3 10base-t/10base2 multi port repeater with lanview power input the complete networking solution port 9 8x 7x 6x 5x 4x 3x 2x 1x sn listed ul 16eo ite repeater unit tuv rheinland this device complies with part 15 of the fcc rules. Operation is subject to the foll...
Page 8
Page 1-4 introduction the mr9 functions include the following: • transmit re-timed data packets • regenerate the preamble • extend collision fragments • automatically partition problem segments • reconnect non-problem segments the auto-segment/auto-reconnect feature ensures that if a problem develop...
Page 9: Chapter 2
Page 2-1 specifications/requirements chapter 2 specifications and requirements 2.1 specifications listed below are the electrical and physical specifications of the mr9. Cabletron systems reserves the right to change these specifications at any time without notice. General specifications delay times...
Page 10: 1 2 3 4 5 6
Page 2-2 specifications/requirements twisted pair connectors type: rj-45 port, for use with twisted pair cable. See figure 2-1. Rj-45 port pin configuration: figure 2-1 shows the mr9t port 9 straight-through pin configuration, as indicated by ‘=’ on the switch label. Figure 2-2 shows cross-over rj-4...
Page 11: 1 2 3 4 5 6
Page 2-3 specifications/requirements pin 1 rx+ pin 2 rx- pin 3 tx+ pin 4 no connection pin 5 no connection pin 6 tx- pin 7 no connection pin 8 no connection 1 2 3 4 5 6 8 7 port 9 switched for crossed-over operation (x) figure 2-2. Rj-45 port cross-over pin configuration bnc interface (port 9, mr9t-...
Page 12
Page 2-4 specifications/requirements power supply input power usa: 90 - 135 vac, 50-60 hz at 19.0 w input power uk: 216 - 264 vac, 50 hz at 13 w input power europe: 180 - 240 vac, 50 hz at 13 w output power: 0.9 amp at 15 vdc operating temperature range: 0 ° to 70 ° c note: the power source for the ...
Page 13
Page 2-5 specifications/requirements 2.2 10base-t network design guidelines: mr9t transceivers and network devices that connect to the mr9t must meet ieee 802.3 standards. Your network must meet the following ieee 802.3 10base-t twisted pair requirements when connecting devices with the mr9t. • segm...
Page 14
Page 2-6 specifications/requirements • noise - noise is caused by either crosstalk (signal coupling between the different cable pairs in a multi-pair cable, or externally induced impulses. External noise can cause data errors if impulses occur at very specific times during data transmission. General...
Page 15: Chapter 3
Page 3-1 installation chapter 3 installation when you unpack the mr9, verify that you have received the following: • one 15 vdc, 0.9 amp wall mount transformer with attached power cord • two sets of velcro mounts • ten 6 inch tie wraps • four cable clamps after you are sure that you have met all req...
Page 16: Mr9T
Page 3-2 installation 3.2 connecting the mr9 to the power source to connect the repeater to the power source: 1. Plug the power cord (figure 3-1) into the power receptacle located on the side of the mr9. 2. Plug the power cord into a wall receptacle. After you have made the power connection, verify ...
Page 17
Page 3-3 installation 3.4 connecting cables in a typical application, the mr9 connects up to eight ethernet devices to the ethernet network. One port connects the repeater to the network while the other ports connect to ethernet devices such as pc network interface cards. Usually, port 9 is used as ...
Page 18
Page 3-4 installation transceiver or pc network interface card. Figure 3-3 shows a representation of a typical twisted pair repeater installation. Pins 1, 2, 3, and 6 in an rj-45 connector are the pins used to carry the signals. Repeater port 1x connects to a transceiver, which connects to a pc netw...
Page 19
Page 3-5 installation connect the other end of the twisted pair segment to any port on the front of the mr9t. If you are using mr9t port 9, make sure that the configuration switch on the side of the mr9t is set correctly, either cross-over (x) or straight-through (=). If you are unsure of the proper...
Page 20
Page 3-6 installation e. Reconnect the cable segment to the repeater and the network device. If a link has not been established, contact cabletron systems technical support. 3.6 connecting twisted pair segments to rj-45 ports to connect a workstation or other device to the mr9: 1. Use a twisted pair...
Page 21: Chapter 4
Page 4-1 using lanview chapter 4 using lanview the mr9 uses cabletron systems’ built-in diagnostic and status monitoring system, lanview. The lanview indicators give you a visual indication of network status and problems. This chapter explains how to use the lanview indicators to monitor network act...
Page 22: Mr9T
Page 4-2 using lanview receive (rvc) led this yellow indicator normally flashes to indicate that the mr9 is repeating data packets received from that segment. The flash of the led is pulse stretched for viewing effect. Mr9t 802.3 10base-t multiport repeater with lanview pwr cln lnk rcv port 9 8 7 6 ...