E-10
Serial Interface (COM1,COM2)
COM1(RS-232C)
Pin Arrangement
Pin No.
Signal
Signal Name
Direction
1
CD
Carrier Detect
Input
2
RXD
Receive Data
Input
3
TXD
Send Data
Output
4
DTR
Data Terminal Ready
Output
5
GND
Signal Ground
-
6
DSR
Data Set Ready
Input
7
RTS
Request Send
Output
8
CTS
Clear Send
Input
9
RI/+5V
Ring In5V - Power
Supply for External Devices
In/Output
FG
FG
Frame Ground
-
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.
4 . Dip switches
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.
4 . Dip switches
(RS-232C)
Pin Arrangement
Pin No.
Signal
Signal Name
Direction
1
CD
Carrier Detect
Input
2
RXD
Receive Data
Input
3
TXD
Send Data
Output
4
DTR
Data Terminal Ready
Output
5
GND
Signal Ground
-
6
DSR
Data Set Ready
Input
7
RTS
Request Send
Output
8
CTS
Clear Send
Input
9
RI/+5V
Ring In5V - Power
Supply for External Devices
In/Output
FG
FG
Frame Ground
-
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.
4 . Dip switches
5
Interfaces
1
5
6
9
1
5
6
9
