Alarms; Input Alarms; Output Alarms; Power - Symmetricom TimeProvider 1000 User Manual

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 that you use a 5 A fuse for the power supply to the
TimeProvider shelf.
097-58001-02 Revision C – August 2005
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
Chapter 7 Specifications of the TimeProvider
Connections, on page 63
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)
TimeProvider User's Guide 193
Alarms
,
for a