Cabletron Systems EMM-E6 Ethernet - Manual (Page 167)

EMM-E6 User’s Guide A-5
A.8 EPIM-T (10BASE-T TWISTED PAIR PORT)
Internal Transceiver: Cabletron Systems TPT
10BASE-T
Twisted Pair Transceiver
Type: 8 Pin RJ45 Jack (Figure A-1).
Figure A-1. EPIM-T (with RJ45 Port)
A slide switch on the EPIM-T determines the cross-over status of the
cable pairs. The switch residing on the
X side indicates the pairs
internally cross over. If the switch resides on the = side, the pairs do
not internally cross over. (See Figure A-2.)
Figure A-2. Cross-over Switch on the EPIM-T
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
CH1Book Page 5 Wednesday, March 20, 1996 7:48 AM