Symmetricom TimeProvider 1000 User Manual

097-58001-02 Revision C – August 2005 TimeProvider User’s Guide 193
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
Making Alarm Connections, on page 63, for a
pinout diagram of the DB-25 connector. Table 7-6 describes the contact closure for
the alarm outputs.
Power
Dual power supplies from –36 to –72 V DC. Table 7-7 lists the maximum and typical
power consumption using crystal and Rubidium IOCs.
Symmetricom recommends that you use a 5 A fuse for the power supply to the
TimeProvider shelf.
Table 7-6. Output Alarm Specifications
Alarm Description
Minor Contact closure (NC or NO) 1 Amp Form C
Major Contact closure (NC or NO) 1 Amp Form C
Critical Contact closure (NC or NO) 1 Amp Form C
Table 7-7. Typical Power Consumption
IOC Type
Max Power (W)
per IOC
Typical Power (W)
per IOC
Crystal 40 30
Rubidium 60 40
(70 with two Rb IOCs)

Symmetricom TimeProvider 1000 Specifications

General

Brand	Symmetricom
Model	TimeProvider 1000
Category	Clock
Language	English