Orolia Spectracom EC20S - Holdover Sequence Detail

EPSILON CLOCK MODEL EC20S Spectracom
35 User’s Manual
10.3.4 HOLDOVER SEQUENCE DE TAIL
Following diagrams show the status of the EC20S product while there is no valid synchronization source
(in brackets, the references of the status definitions):
T
gnssLoss
GNSS Source Loss Time
Latency upon loss of the GNSS synchronization source: 120
seconds
T
hold
Holdover Time
Time before phase or frequency alarms occur. Depending on the
synchronization setup.
Holdover
Locked on the GNSS source
On
Off
On
Off
On
Phase or
Frequency
Accuracy
[12] and [13]
Alarm
OK
Tracking Search
OK
On
Locked on the GNSS source
T
hold
Mute mode
is ‘Disabled’
[72] and [73]
Mute mode is
‘Automatic’
[72] and [73]
POWER
Tracking
Status [7]
GNSS Lock
[14]
SFN Status
[4]
Alarm (Searching for satellites)
OK (the GNSS
source is Locked)
OK (the GNSS source is Locked)
T
gnssLoss