Cabletron Systems BRIM-F6 Manual De Usuario

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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