Edge-Core RG230 Uživatelská příručka stáhnout pdf (Strana 98)

Cables and Pinouts

C-2

Straight-Through Wiring

If the twisted-pair cable is to join two ports and only one of the ports has an internal

crossover (MDI-X), the two pairs of wires must be straight-through.

Figure C-2 Straight-Through Wiring

Crossover Wiring

If the twisted-pair cable is to join two ports and either both ports are labeled with an

“X” (MDI-X) or neither port is labeled with an “X” (MDI), a crossover must be

implemented in the wiring.

Figure C-3 Crossover Wiring

Table C-1. 10/100BASE-TX MDI and MDI-X Port Pinouts

Pin MDI-X Signal Name MDI Signal Name

1 Receive Data plus (RD+) Transmit Data plus (TD+)

2 Receive Data minus (RD-) Transmit Data minus (TD-)

Transmit Data plus (TD+) Receive Data plus (RD+)

Transmit Data minus (TD-) Receive Data minus (RD-)

4,5,7,8

Not used Not used

Note: The “+” and “-” signs represent the polarity of the wires that make

up each wire pair.

White/Orange Stripe

Orange

White/Green Stripe

Green

EIA

TIA 568B RJ-45 Wiring

tandard

10/100BASE-TX Straight-through Cable

End A

End B

Blue

White/Blue Stripe

Brown

White/Brown Stripe

White/Orange Stripe

Orange

White/Green Stripe

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Crossover Cable

End A

End B

Green

Blue

White/Blue Stripe

Brown

White/Brown Stripe

1 2 ... 93 94 95 96 97 98 99 100 101 102 103 ... 115 116

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