Specifications

14 AT-8700XL Series

C613-03064-00 REV E

Figure 4: RS-232 Terminal Port Pin Numbers.

Switch RJ-45 Ports

Caution. Do not plug a phone jack into any RJ-45 port. Doing so could damage

the switch. Use only twisted pair cables with RJ-45 connectors.

For 10BASE-T/100BASE-TX connections, a twisted pair cable must be used.

Each pair is identified by two different colours. For example, one wire might be

red, and the other red with a white stripe. An RJ-45 connector must be fitted to

both ends of the cable. Figure 5 on page 14 illustrates the pin layout for RJ-45

connectors.

Figure 5: RJ-45 Pin layout.

With 10BASE-T/100BASE-TX cables, pins 1 and 2 are used for transmitting

data, while pins 3 and 6 are used for receiving data. Table 4 on page 15 lists the

RJ-45 Pin assignments.

Table 3: Internal DTE pin roles.

Pin Role

2TXD

3RXD

4CD

5GND

6DTR

7CTS

8RTS

Pin 9

Pin 6

Pin 5

Pin 1

DB9 Female Pin View

RJPIN