SMC Networks SMC6608M Manuel d'utilisateur télécharger pdf (Page 48)

Twisted-Pair Cabling Guidelines

Each 10BASE-T or 100BASE-TX connection requires an

unshielded twisted-pair (UTP) cable with RJ-45 connectors at

both ends. For 10BASE-T connections, two pairs of 100 Ohm

Category 3, 4 or 5 cable are required. 100BASE-TX connections

require two pairs of certified Category 5 cable.

Every twisted-pair connection must have a wiring crossover to

transmit and receive data. For convenience, this crossover is

built into the 10BASE-T/100BASE-TX ports on the TigerSwitch

100 units*. Network cards do not have a built-in crossover, so

PCs can be connected to crossover ports with straight-through

cable. Hubs (and other switches) may have either crossover or

straight-through ports. For this reason, the type of cable used to

connect these devices to the TigerSwitch 100 is determined by

the port on the other device, as shown in the table below.

Crossover/Straight-Through Wiring Requirements

Warning: Do not plug a phone jack connector into an

RJ-45 port. This will damage the switch. Use only

twisted-pair cables with RJ-45 connectors that conform to

FCC standards.

* Note: Each TigerSwitch 100 unit equipped with 10BASE-T/100BASE-TX ports

will also have at least one daisy-chain port that does not have a built-in

wiring crossover.

3-11

INSTALLATION

If the TigerSwitch 100 And the port on Then use...cable

port is... the other device is

Crossover (x) Straight-through Straight-through

Crossover (x) Crossover (x) Crossover

Straight-through Straight-through Crossover

Straight-through Crossover (x) Straight-through

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 112 113

Pas de commentaire

SMC Networks SMC6608M Manuel d'utilisateur Page 48