Allied-telesis AT-MR820TR Manuel d'utilisateur télécharger pdf (Page 55)

AT-MR420TR and AT-MR820TR Installation Guide

Connectors

Notice how the pins are numbered in Figure 20. Be sure to hold the

connectors in the same orientation when connecting the wires to the

pins.

Figure 20:

Connector Pin Numbers

Each twisted-pair link segment must have a male connector attached

to both ends. According to the 10Base-T specification, pins 1 and 2 on

the connector are used for transmitting data; pins 3 and 6 are used for

receiving data, as shown in Table 3. The TX and the RX in Table 3

represent Transmitted Data and Ready Data, respectively.

Table 3: Pin Assignments

*The “+” and “-” signs are used to represent the polarity of the two wires that make up each

wire pair.

Pin Assignment *

1 TX+

2 TX-

3 RX+

6 RX-

MRx20TR(STP/UTP)_BookA Page 33 Thursday, April 3, 1997 5:24 PM

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Allied-telesis AT-MR820TR Manuel d'utilisateur Page 55