Allied Telesis AT-8648T/2SP Spécifications télécharger pdf (Page 20)

20 AT-8600 Series

C613-03080-00 REV E

Figure 9: Pin wiring diagram for a DCE RS-232 Terminal Port (DB9 female

connector) male to male modem cable

The switch’s RS-232 Terminal Port has a DCE female socket. This allows the use

of a straight-through cable when connecting the switch to a terminal or PC.

Output from the SHOW ASYN command will, however, still have a DTE

perspective. The internal DTE pin roles are listed in Table 10.

Table 10: Internal DTE pin roles

Pin Role

2TXD

3RXD

4CD

5GND

6DTR

7CTS

8RTS

Notes:

(1) → Output from switch; ← Input to switch

(2) Cable version 1.0.

DB9MDB9Fsw

3 (TXD)

2 (RXD)

1 (DCD)

5 (GND)

4 (DTR)

8 (CTS)

7 (RTS)

Not connected

Cable

Pin 9

Pin 6

Pin 5

Pin 1

DB9 Male Pin View

Pin 6

Pin 9

Pin 1

Pin 5

DB9 Male Pin View

DB9 Male

(to switch/DCE)

DB9 Male

(to modem/DCE)

Not connected

→ (TXD)

← (RXD)

← (CD)

(GND)

→ (DTR)

← (CTS)

→ (RTS)

(RING)

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 32 33

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