Appendix A

EPIMs

NOTE

The 9E106-06 Ethernet Switching Module provides one port per channel for Cabletron Systems EPIMs. EPIMs allow connecting to the 9E106-06 using different media types. Cabletron Systems offers a variety of EPIMs whose specifications are explained in the following sections.

Verify that the EPIM is the proper revision before installing it. See Installing the EPIM on page 2-4 for details.

EPIM-T

The EPIM-T is an RJ-45 connector supporting UTP cabling. It has an internal Cabletron Systems TPT-T™ 10BASE-T Twisted Pair Transceiver.

The slide switch on the EPIM-T determines the crossover status of the cable pairs. If the switch is on the X side, the pairs are internally crossed over. If the switch is on the = side, the pairs are not internally crossed over. Figure A-1shows the pinouts for the EPIM-T in both crossover positions.

The link distance is up to 100 meters on unshielded twisted pair cable as specified by ANSI TP-PMD.

Position X (crossed over)

1. RX+

5. NC

2. RX-

6. TX-

3. TX+

7. NC

4. NC

8. NC

 

 

Position = (not crossed over)

1. TX+

5.

NC

2. TX-

6.

RX-

3. RX+

7. NC

4. NC

8. NC

Figure A-1. EPIM-T Pinouts

A-1

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Cabletron Systems 9E106-06 manual EPIMs, Epim-T