HP 24S Betriebsanweisung PDF herunterladen (Seite 57)

Twisted-Pair “Crossover” Cable for Hub-to-Hub Connection

For wiring between two hubs, the transmit and receive pairs must be reversed. The

twisted-pair wires must be twisted through the entire length of the cable. See

“Twisted-Pair Cable Pin Assignments” later in this chapter for a listing of the signals used

on each pin.

Note

Pins 1 and 2 on the hub 1 end must be wired through a twisted pair to

pins 3 and 6 on the hub 2 end. Pins 3 and 6 on the hub 1 end must be

wired through a twisted pair to pins 1 and 2 on the hub 2 end.

Pins 4, 5, 7, and 8 are not used in this application, although they may be

wired in the cable.

A short crossover cable (like

the HP 92214W) can be used

to adapt a straight-through

twisted-pair cable for

“cascading” hubs through the

twisted-pair ports.

Crossover cable

white/orange

orange/white

white/green

green/white

hub 1 end

hub 2 end

crossover cable

straight-through

in-line adapter

hub

straight-through

cable

hub

Cables and Connectors A-5

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HP 24S Betriebsanweisung Seite 57