Symmetricom EDGE CLOCK 1000 - Manual (Page 70)

Chapter 3 Installing the TimeProvider
Making Connections
70 TimeProvider User’s Guide 097-58001-02 Revision G – April 2008
Making Alarm Connections
To install alarm connections on the Input Module, use a customer-supplied DB-25
connector to build an alarm connection to the TimeProvider.
Table 3-6 lists the
pinout for the DB-25 Alarm connector found on all the Input modules (except the
wire-wrap version).
Table 3-6. Alarm Connector Pinout
Pin Description
1 No Connection
2 Minor Normally Closed (NC) Audible
3 Minor Common Audible
4 Minor NC Visual
5 Minor Common Visual
6 Major NC Audible
7 Major Common Audible
8 Major NC Visual
9 Major Common Visual
10 Critical NC Audible
11 Critical Common Audible
12 Critical NC Visual
13 Critical Common Visual
14 Ground
15 Minor Normally Open (NO) Audible
16 Critical PRS Input NO
17 Minor NO Visual
18 Critical PRS Input Common
19 Major NO Audible
20 Major PRS Input NO
21 Major NO Visual
22 Major PRS Input Common
23 Critical NO Audible
24 No Connection
25 Critical NO Visible