Cabletron Systems BRIM-F6 - Manual (Page 23)

Twisted Pair Cable Length
BRIM-F6 User’s Guide Page 4-7
Maximum total
cable length:
100 km (62 miles) — dual ring
200 km (124 miles) — wrapped
Maximum twisted
pair cable length between
adjacent nodes:
100 m (328.1 feet)
4.3 Twisted Pair Pinout Configuration
This section provides the RJ-45 pinout configuration for Unshielded
Twisted Pair (UTP) and Shielded Twisted Pair (STP) Physical Layer
Medium Dependent (PMD) ports.
Note: When connecting two twisted pair ports together, a transmit and receive
cross-over must occur between the two devices (within the cable).
Figure 4-1. RJ-45 TP-PMD Port
Contact Signal
1 Transmit +
2 Transmit -
3 N/A
4 N/A
5 N/A
Pin 1 Pin 8
BRIM-F Book Page 7 Monday, January 29, 1996 9:26 AM