Cabletron Systems SEHI-22FL Guia Do Utilizador

EPIMs enable the connection of the SEHI to the main network using 
different media types. Cabletron Systems offers a variety of EPIMs. The 
following sections explain specifications for each EPIM.

The EPIM-T is an RJ45 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 

 side, the pairs are internally crossed 

over. If the switch is on the 

 side, the pairs are not internally crossed 

over. Figure A-1 shows the pinouts for the EPIM-T in both positions.

Position =
(not crossed over)

1. TX+
2. TX-
3. RX+
4. NC

5. NC
6. RX
7. NC
8. NC

Position X
(crossed over)

1. RX+
2. RX-
3. TX+
4. NC

5. NC
6. TX-
7. NC
8. NC

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SEHI Book  Page 1  Friday, April 19, 1996  10:46 AM