Pro-face PS-A Series Installation Manual page 10

5 Interfaces
Serial Interface (COM1,COM2)
COM1(RS-232C)
Pin Arrangement
1 5
6 9
To change the RI/+5V setting of #9 pin, open the PS-A unit's rear cover and set dip
switch (DIPSW2) to the desired position.
Use inch type (#4-40UNC) threads to hold the cable's set (fastening) screws in
place.
COM2
COM2 can be changed to either RS-232C, RS-422 or RS-485. The default setting
is RS-232C. To change this setting to RS-422 or RS-485, open the PS-A unit's rear
cover and set dip switch (DIPSW2) to the desired position.
(RS-232C)
Pin Arrangement
1 5
6 9
In RS-232C mode, the RI/+5V setting of #9 pin can be changed. To change this
setting, open the PS-A unit's rear cover and set dip switch (DIPSW2) to the desired
position.
E-10
Pin No. Signal
1 CD
2 RXD
3 T XD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI/+5V
FG FG
4 . Dip switches
4 . Dip switches
Pin No. Signal
1 CD
2 RXD
3 T XD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI/+5V
FG FG
4 . Dip switches
Signal Name
Carrier Detect
Receive Data
Send Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request Send
Clear Send
Ring Indicate/+5V - Power
Supply for External Devices
Frame Ground
Signal Name
Carrier Detect
Receive Data
Send Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request Send
Clear Send
Ring Indicate/+5V - Power
Supply for External Devices
Frame Ground
Direction
Input
Input
Output
Output
-
Input
Output
Input
In/Output
-
Direction
Input
Input
Output
Output
-
Input
Output
Input
In/Output
-