Appendix A: Wiring Specifications
WinLink User and Installation Guide Version 1.750 134
IDU-C Alarm Connector
Table 9-6 lists the IDU-C Alarm connector pinout.
Table
9-6: IDU-C Alarm Connector (Dry-Contact)
Pin I/O Description
1 Input 1 Positive
2 Input 2 Positive
3 Output 1 Normally
Closed
4 Output 1 Normally
Open
5 Output 2 Normally
Open
6 Input 1 Negative
7 Input 2 Negative
8 Output 1 Common
9 Output 2 Common
9COM
8COM
7- ve
6-ve
4
3
1
2
+ve
Output 2
Output 1
Input 1
Input 2
Alarm Connector
7
+ve
10 to 50 VDC alarm voltage
-10 to -50 VDC alarm voltage
Ext. current limit resistor
Alarm LED
Ext. DC Power
Alarm Buzzer
Ext. DC Power
Ext. current limit resistor
N/C
N/O
N/O
Figure
9-1: Example for connecting the alarm connector