Twisted Pair Connectors And Cables; Twisted Pair Connectors; Twisted Pair Cables - 3Com CoreBuilder 5000 User Manual

Ethernet 24-port 10base-t module

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Twisted Pair

Connectors and

Cables

Twisted Pair

Connectors

There are many types of cables and connectors that you can use to link

your 24-Port module to your network. Use this information in this

section to ensure that the cables and connecting hardware meet

requirements. For proper operation, use only approved cables when you

install all equipment. This section is divided into the following parts:

The IEEE 802.3 10BASE-T standard for RJ-45 pinouts must be used, as

described below. 10BASE-T uses 2 of the 4 pairs of wire: pins 1 & 2

and pins 3 & 6. If the pairs are not configured this way, the connection

will not work properly. Level 3 or higher cable should have the

following pin pairings:

pins 4 and 5 are pair 1

pins 3 and 6 are pair 2

pins 1 and 2 are pair 3

pins 7 and 8 are pair 4

Refer to

Figure A-2

for an example of the recommended TIA-568A

standard pinouts for this connector and the cable.

Twisted Pair Connectors and Cables

A-5

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