User`s manual

DigiMux
Appendices 117
External I/O Connector Pins (44-Pin DSUB)
The following table describes these pins:
Pin
No
Definition Pin
No
Definition Pin
No
Definition
1 GND 16 Alarm In #16 31 Alarm In #8
2 GND 17 Alarm In #15 32 Alarm In #7
3 GND 18 Alarm In #14 33 Alarm In #6
4 GND 19 Alarm In #13 34 Alarm In #5
5 Alarm Reset 20 Alarm In #12 35 Alarm In #4
6 Day/Night Switch 21 Alarm In #11 36 Alarm In #3
7 Alarm Set 22 Alarm In #10 37 Alarm In #2
8 No Connection 23 Alarm In #9 38 Alarm In #1
9 Relay C Normal Open 24 GND 39 RS485 R+
10 Relay C Common Node 25 GND 40 RS485 T+
11 Relay C Normal Close 26 GND 41 RS485 R -
12 Relay B Normal Open 27 GND 42 RS485 T -
13 Relay B Common Node 28 GND 43 No Connection
14 Relay B Normal Close 29 GND 44 Relay A Normal Open
15 Relay A Normal Close 30 Relay A Common Node