E-9
Serial Interface (COM1,COM2,COM3,COM4)
RS-232C Interface (
COM1, COM2, COM3, COM4)
1
5
6
9
4
Interfaces
Pin Arrangement
PIN#
Signal
Condition
Direction
1
CD
Carrier Detect
Input
2
RXD
Receive Data
Input
3
T XD
Send Data
Output
4
DT R
Data T erminal Ready
Output
5
GND
Signal Ground
-
6
DSR
Data Set Ready
Input
7
RT S
Request Send
Output
8
CT S
Clear Send
Input
9
RI / 5V
Ring Indicate
In/Output
FG
FG
Frame Ground
-
RS-422 Interface (
COM3)
Pin#
Signal
Condition
Direction
1
RXA
No Connection
-
2
RXB
Send Data
In/Output
3
T XA
Receive Data
In/Output
4
NC
No Connection
-
5
GND
Signal Ground
-
6
NC
No Connection
-
7
T XB
No Connection
-
8
NC
No Connection
-
9
NC
No Connection
-
FG
FG
Frame Ground
-
RS-485 Interface (
COM3)
Pin#
Signal
Condition
Direction
1
DAT A+
Send Data
In/Output
2
DAT A-
Receive Data
In/Output
3
NC
No Connection
-
4
NC
No Connection
-
5
GND
Signal Ground
-
6
NC
No Connection
-
7
NC
No Connection
-
8
NC
No Connection
-
9
NC
No Connection
-
FG
FG
Frame Ground
-
