3 twisted pair cable length, 5 twisted pair pinout configuration, Twisted pair cable length -7 – Cabletron Systems HSIM-F6 User Manual

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Twisted Pair Pinout Configuration

HSIM-F6 User’s Guide

5-7

5.4.3

Twisted Pair Cable Length

The TP-PMD FDDI standard specifies the following:

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)

5.5

TWISTED PAIR PINOUT CONFIGURATION

This section provides the RJ45 pinout configuration for Unshielded
Twisted Pair (UTP) and Shielded Twisted Pair (STP) Physical Layer
Medium Dependent (PMD) ports.

Figure 5-1

RJ45 TP-PMD Port

NOTE

When connecting two twisted pair ports together, a transmit
and receive cross-over must occur between the two devices
(within the cable).

1. Transmit +
2. Transmit -
3. N/A
4. N/A

5. N/A
6. N/A
7. Receive +
8. Receive -

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