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Spectracom Corporation
EPSILON CLOCK MODEL EC20S
4.1.6 Equipment Start-up
At start-up, after initialization, the software retrieves the last configuration and starts
programmable hardware. Distributed signals are generated with a degraded performance first
and with required performance after oscillator locking.
4.1.7 Start-up sequence detail
Following diagrams show the Start-up status of the EC20S product:
POWER
GPS
Search for Satellites
Locked
Tss
Status
Init.
Warm-Up
Tinit
Twarm
Holdover
Tracking Search
Locked on GPS
Tts
SFN
Off
Outputs
Squelch
Disabled
Off
Outputs
Squelch
Auto
Off
On
On
Tss
Search for Satellites Time
Tinit
Initialization Time
Warm-Up Time
Tracking Search Time
Twarm
Tts
User’s Manual
On
5 minutes typical, depending on GPS signal reception
quality.
Start of EC20S software: 2 minutes typical.
5 minutes typical, depending on oscillator.
Depending on synchronization source quality.
4-3