Proface APL3000B - Node Box PC Manual de usuario descargar pdf (Pagina 31)

PS-3450A Series Hardware Manual

2-8

 COM2

COM2 can be changed to either RS-232C, RS-422 or RS-485. (The factory setting is RS-232C.) To change

this setting, set Serial Mode Select switch on the circuit board to the desired position.

SEE



Switches (page 2-10)

Pin Arrangement Pin No.

RS-232C

Signal Name Direction Meaning

1 CD Input Carrier Detect

2 RD(RXD) Input Receive Data

3 SD(TXD) Output Send Data

4 ER(DTR) Output Data Terminal Ready

5 GND - Signal Ground

6 DR(DSR) Input Data Set Ready

7 RS(RTS) Output Request to Send

8 CS(CTS) Input Clear to Send

9CI(RI)/+5V

*1 To change the RI/+5V setting of #9 pin set System Set switch to the desired po-

sition.

Input / Output

Called status display / +5V

Output (Switching available)

FG FG -

Frame Ground

(Common with SG)

Pin No.

RS-422

Signal Name Direction Meaning

1 RDA Input Receive Data A (+)

2 RDB Input Receive Data B (-)

3 SDA Output Send Data A (+)

4 NC - No Connection

5 GND - Signal Ground

6 NC - No Connection

7 SDB Output Send Data B (-)

8 NC - No Connection

9 NC - No Connection

FG FG - Frame Ground (Common with SG)

(PS-A side)

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 94 95

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Proface APL3000B - Node Box PC Manual de usuario Pagina 31