Local And Remote Alarm Connector Pin Assignments - Symmetricom SSU-2000e User Manual

Table 1-4 lists the local and remote alarm connector pin assignments.
Table 1-4. Local and Remote Alarm Connector 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
–
CRITICAL
–
CRITICAL
Frame Ground
Frame Ground
Frame Ground
Not Used
Not Used
Note: In an alarm condition or loss of DC power, the contact
between the NO and COM closes and the contact between the
NC and COM opens.
Main Shelf Power Connections
The main shelf accepts redundant –48/60 VDC power inputs from external supplies
and makes these inputs available to the modules through the motherboard
connectors.
There is no power ON/OFF switch on the SSU-2000e because power to the shelf is
controlled by external power supplies.
12713140-002-2 Revision E – October 2006
Signal
Normally Open Contact
Wiper Contact
Normally Closed Contact
Chapter 1 Product Overview
Pin
7
15
8
4
12
5
1
9
2
10
11
13
3
6
SSU-2000e User's Guide
System Components
37