Справочник Пользователя для Pelco PelcoNet Multimedia Transmission Via Networks C2904M-B

C2904M-B (2/05)

13

PIN ASSIGNMENTS

Pin

COM1

COM2

RS-232

RS-232/485

RS-232

1

DCD

–

–

(data carrier detect)

2

RxD

RxD+

RxD

(receive data)

(receive data plus)

(receive data)

3

TxD

TxD-

TxD

(transmit data)

(transmit data minus)

(transmit data)

4

DTR

–

–

(data terminal ready)

5

GND (ground)

GND (ground)

GND (ground)

6

DSR

–

–

(data set ready)

7

RTS

TxD+

–

(ready to send)

(transmit data plus)

8

CTS

RxD-

–

(clear to send)

(receiver data minus)

9

–

–

–

1 2 3 4 5

6 7 8 9