Twisted Pair Pinout Configuration

5.4.3Twisted 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)

5.5TWISTED 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.

NOTE

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

1 2 3 4 5 6 7 8

1.

Transmit +

5.

N/A

2.

Transmit -

6.

N/A

3. N/A

7.

Receive +

4. N/A

8.

Receive -

Figure 5-1 RJ45 TP-PMD Port

HSIM-F6 User’s Guide

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Image 69
Cabletron Systems BRIM-F6 manual Twisted Pair Cable Length, Twisted Pair Pinout Configuration