Accton Wireless Broadband Corp. FIU176205T01W ユーザーズマニュアル

  |  Cables and Pinouts

10/100BASE-TX Pin Assignments

–  101  –

Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for 

RJ-45 connections: 100-ohm Category 3 or better cable for 10 Mbps 

connections. Also be sure that the length of any twisted-pair connection 

does not exceed 100 meters (328 feet).

The RJ-45 port on the access point supports automatic MDI/MDI-X 

operation, so you can use straight-through or crossover cables for all 

network connections to PCs, switches, or hubs. In straight-through cable, 

pins 1, 2, 3, and 6, at one end of the cable, are connected straight through 

to pins 1, 2, 3, and 6 at the other end of the cable.

 

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. (When auto-negotiation is enabled for any RJ-45 port on this 

switch, you can use either straight-through or crossover cable to connect 

to any device type.)

You must connect all four wire pairs as shown in the following diagram to 

support Gigabit Ethernet connections.

a.

The “+” and “-” signs represent the polarity of the wires that make up each wire pair.

1

Transmit Data plus (TD+)

Receive Data plus (RD+)

2

Transmit Data minus (TD-)

Receive Data minus (RD-)

3

Receive Data plus (RD+)

Transmit Data plus (TD+)

6

Receive Data minus (RD-)

Transmit Data minus (TD-)

4, 5, 7, 8

Not used

Not used