Connector Pin-Outs; Aaui Connector - Asante MacCon Family Ethernet Network Cards for the Macintosh Installation Manual

Ethernet network cards for the macintosh

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Table Of Contents

Table of Contents

You may ﬁnd the following tips useful.

10BaseT

The wiring normally called for in 10BaseT is 26 to 22 AWG,

which corresponds to the wire gauge of telephone twisted-

pair cables. You need two pairs of wiring for each node.

Before you think seriously about using your existing phone

wiring for an Ethernet network, be aware that older cabling

may not be of sufﬁcient quality to support the full 100 meters

between a device and the hub.

When wiring 10BaseT connections, take precautions against

splitting pairs. Be sure you maintain the same color mates for

each pair used within the cable. If you don't follow a com-

mon color pairing, you can mix up the wires preventing the

Ethernet signal from being transmitted.

Be sure to check any cabling you plan to use. Older cabling

may not be of adequate quality to support 100 meters

between a device and the hub.

When subdividing cable segments, do not randomly pick any

length of cable. The IEEE recommends that Ethernet coaxial

cable be subdivided at lengths of 23.4 meters (76.8 feet), or

multiples of that length, in order to minimize internal signal

reﬂections. These reﬂections reduce the signal strength for

large networks. On small networks, such as those covering a

single ﬂoor of a building, these reﬂections probably wonnn't

cause problems.

You may want to install a wiring system in your building, or

you may already have one, that allows you to run a 10BaseT

cable to a wall jack.