Alarms; Input Alarms; Output Alarms; Power - Symmetricom EDGE CLOCK 1000 User Manual

Chapter 7 Specifications of the TimeProvider

Alarms

Alarms

Input Alarms

The PRS input is inhibited when a contact closure (less than 1 Ω) is present across
the PRS Alarm In connection.

Output Alarms

The output alarm connector is on the Input module, and can be either a DB25
connector or wire-wrap pins. See
pinout diagram of the DB-25 connector.
the alarm outputs.
Table 7-6. Output Alarm Specifications
Alarm
Minor
Major
Critical

Power

Dual power supplies from –36 to –72 V DC.
power consumption using crystal and Rubidium IOCs.
Table 7-7. Typical Power Consumption
IOC Type
Crystal
Rubidium
Symmetricom recommends a 5 A fuse for the power supply to the TimeProvider
shelf.
200 TimeProvider User's Guide
Making Alarm
Contact closure (NC or NO) 1 Amp Form C
Contact closure (NC or NO) 1 Amp Form C
Contact closure (NC or NO) 1 Amp Form C
Max Power (W)
per IOC
40
60
Connections, on page 70
Table 7-6 describes the contact closure for
Description
Table 7-7 lists the maximum and typical
Typical Power (W)
per IOC
30
40
(70 with two Rb IOCs)
097-58001-02 Revision G – April 2008
,
for a