Alarm Contact Closures And Pin Assignments - Symmetricom SSU-2000e User Manual

Chapter 2 Installing the SSU-2000e
Making Alarm Connections
Figure 2-12. Alarm Contact Closures and Pin Assignments
Alarm contact pin assignments are listed in
Table 2-6. Alarm Contact Pin Assignments
MINOR – Normally Open Contact
MINOR – Wiper Contact
MINOR – Normally Closed Contact
MAJOR – Normally Open Contact
MAJOR – Wiper Contact
MAJOR – Normally Closed Contact
CRITICAL – Normally Open Contact
CRITICAL – Wiper Contact
CRITICAL – Normally Closed Contact
Frame Ground
Frame Ground
Frame Ground
Not Used
Not Used
Note: In an alarm condition or with the loss of DC power, the contact
closes between NO and COM, and the contact opens between NC
and COM.
72 SSU-2000e User's Guide
Signal
Table 2-8.
Pin
7
15
8
4
12
5
1
9
2
10
11
13
3
6
12713140-002-2 Revision E – October 2006