EPSILON CLOCK MODEL EC22S
Spectracom Corporation
EPSILON CLOCK User’s Manual
5-16
7) Leap second: Programs in advance the leap second correction, hence ensuring it will be
applied even in case of GPS loss
a. Leap second : Direction of the application
i. 0: non leap second pending
ii. –1: positive leap second pending
iii. +1: negative leap second pending
b. Leap second date: Date of application
i. : 31/03
ii. : 30/06
iii. : 30/09
iv. : 31/12
8) 1PPS phase offset:
Phase shift implemented on 1PPS output, from –500ms to
+500ms, entered in ns.
9) Force holdover:
Keep the oscillator control voltage at a fixed value even if a
synchronization reference is available:
a. On: Force holdover
b. Off: Normal slaving mode
10) Priority level: GPS: Programs the priority of the GPS reference source.
a. Priority 1: Highest priority
b. Priority 2: Medium priority
c. Priority 3: Lowest priority
d. Disable: Disable the source; this source is not supervised; no corresponding alarm
11) Priority level: External 1PPS: Programs the priority of the External 10Mhz/1PPS reference
source.
a. Priority 1: Highest priority
b. Priority 2: Medium priority
c. Priority 3: Lowest priority
d. Disable: Disable the source; this source is not supervised; no corresponding alarm
12) Priority level: Optional reference:
Programs the priority of the External optional
reference source.
a. Priority 1: Highest priority
b. Priority 2: Medium priority
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