Cabletron Systems Expansion module DELHE-UA - Manual (Page 45)

DELHE-UA User’s Guide B-1
APPENDIX B
FEPIM SPECIFICATIONS
This appendix provides specifications for the Fast Ethernet (Port)
Interface Modules. Cabletron Systems reserves the right to change these
specifications at any time without notice. The DELHE-UA supports the
following Fast Ethernet (Port) Interface Modules: the DELTX-UI, the
DELFX-UI, and the DELF3-UI.
B.1 DELTX-UI
The DELTX-UI uses an RJ45 connector supporting Category 5
(85 – 111 ohms) Unshielded Twisted Pair (UTP) and Shielded Twisted
Pair (STP) cabling.
The slide switch on the DELTX-UI 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 B-1 shows the pinouts for the DELTX-UI with the switch in
each position.
Figure B-1 DELTX-UI Pinouts
DELTX-UI
10
100
= x
fecrossover
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