Spectracom SecureSync User Reference Manual page 209

Figure 3-6:
CHAPTER •
3 SecureSync User Reference Guide Rev. 18
of oscillator disciplining. The available TFOM range is 1 through 15. You may refer to
the following for the TFOM to ETE conversions:
Reported TFOM Value Estimated Time Error (ETE)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
è
TFOM ETE conversion
Holdover Timeout(s) : The default is 7200 s (= 2 hours).
For more information on holdover timeouts, see "Typical Holdover lengths in
seconds" on page 197. For additional information on holdover, see "Holdover
Timeout" on page 196.
Phase Error Limit : Setting a limit (valid for +/-) for the phase error between external
1PPS reference and system 1PPS will cause the disciplining tracking to restart
matically (after a few minutes delay), if the limit is exceeded, in order to quickly re-
align the system 1PPS with an reference.
[Default=0 (disables the feature)].
For more information on phase error, see under "Oscillator Status Panel" on
page 190.
Restart Tracking : Check and click Submit if you want to
ciplining tracking.
This option causes the disciplining algorithm to stop tracking the input reference and
start over (as if it was just acquired). This can be useful if there is a large phase off-
set between reference 1PPS and system 1PPS, as it may occur when going back
<= 1 nsec
1 nsec < ETE <= 10 nsec
10 nsec < ETE <= 100 nsec
100 nsec < ETE <= 1 μsec
1 μsec < ETE <= 10 μsec
10 μsec < ETE <= 100 μsec
100 μsec < ETE <= 1 msec
1 msec < ETE <= 10 msec
10 msec < ETE <= 100 msec
100 msec < ETE <= 1 sec
1 sec < ETE <= 10 sec
10 sec < ETE <= 100 sec
100 sec < ETE <= 1000 sec
1000 sec < ETE <= 10000 sec
ETE > 10000 sec
3.6 OTHER Setup Pages
auto-
manually restart dis-
193