3Com 2000 TR manual Installation

3-2CHAPTER 3: INSTALLING AND SETTING UP THE MODULE

Installation

This section explains how to install the TR-in-FE Module into a SuperStack II Switch 2000 TR device. Installation is similar for all devices compatible with the TR-in-FE Module.

CAUTION: Always follow Electro Static Discharge (ESD) procedures when installing an I/O Module.

1If the Switch is connected to the network, turn off the power and disconnect the switch from the main power supply and the network.

2Place the Switch on a flat, clean, hard, work surface.

3Locate and remove the blanking plate that covers the switch Module slot. See Figure 3-1. Retain the blank- ing plate and the screws for future use.

To locate the slot where the TR-in-FE Module resides, refer to the manual that accompanies your device .

4Use the guide rails within the Switch slot to align the TR-in-FE Module. The location of the guide rails and the correct positioning of the plate is shown in Figure 3-1.

5Slide the TR-in-FE Module into the slot without touch- ing the top or bottom of the circuit board, which positions upside down on the plate. Ensure that the module is pushed fully into the unit.

6Use the thumb screws attached to the TR-in-FE Module to fix the module firmly into place.

7Connect the cable to the TR-in-FE port.

■For fiber: 3Com supports multi-mode fiber 50/125 μm and an SCduplex connector. The

maximum inter-station distance (including device-to-network connectors) should not exceed two kilometers (1.25 miles) for full duplex. For half duplex, the maximum inter-station distance should not exceed 300 meters.

■For copper: 3Com supports Category 5 type UTP cable at distances up to 100 m for both half and full duplex.

For more on cable specifications, see Appendix C, “TR-in-FE Module Technical Specifications”.

8Connect the cable to the module. Connect the Rx connector to the port’s Tx socket. Connect the Tx connector to the port’s Rx socket. Do the same at the other end of the connection.

■For fiber: Each end of the fiber cable has a trans- mit (Tx) and receive (Rx) connector.

■For copper: A crossover cable may be required for operation, which requires a jumper setting on the module. See“Jumper Settings” in this chapter.

9Connect the downlink port to a Fast Ethernet repeater, server, or switch. If you plan running full duplex, ensure that the other end of the link supports it. A repeater will not support full duplex whereas a switch such as the SuperStack 3000 will.

NOTE: The Fast Ethernet switch does not have to be a SuperStack II 3000. However, due to the 3000’s capa- bility of handling frame sizes larger than 1500 bytes as well as its cost efficiency, the 3000 is the switch of preference for anchoring the system.

10Power up the switch. The link status LED turns green once a valid connection is made.