IP WatchDog2 - Manual
HW group
March 2015
Page 10
Outputs Channel1 / Channel2
Description terminal board
Pin
Power
Function description
NC
Normally Close
In Idle state this pin is connected with the appropriate COM pin
NO
Normally Open
In Reset state this pin is connected with the appropriate COM pin
COM
Common
Common pin - in case of switching contacts connected to relay housing
Serial
- DB9M
Connector DB9M (RS-232)
Channel1 Channel2
1 DCD
IN Unused
2
RxD
IN
Receive Data
3
TxD
OUT
Transmit Data
4
DTR
OUT
Unused
5
GND
---
System Ground
6
DSR
IN Unused
7*
RTS
OUT
Clear to Send, (Receive
Data)
8
RxD
IN
Request to Send
9 RI
IN Unused