HP 100VG Guia do Utilizador descarregar pdf (Página 91)

Twisted-Pair Cable for the Distributed Management

Chain

To chain hubs together on a Distributed Management Chain, use a

“straight-through” twisted-pair LAN cable. The twisted-pair wires must be

twisted through the entire length of the cable. The wiring sequence must

conform to AT&T 258A (not USOC). See “Twisted-Pair Cable Pin

Assignments” later in this chapter for a listing of the signals used on each pin.

Note Pins 4 and 5 must be wired to a twisted pair.

Pins 1 ,2, 3, 6, 7, and 8 are not used in this application, although they may be

wired in the cable.

The maximum total length of all the extension cables in a chain is 185

meters.

blue/white

white/blue

Straight-through cable

Cables and Connectors

A-5

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HP 100VG Guia do Utilizador Página 91