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Symmetricom XLi IEEE 1588 User Manual

Symmetricom XLi IEEE 1588
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XLi IEEE 1588 Clock 67
997-01510-03, Rev. C, 12/12/2006
2
5
1
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
where:
For example, to change the time mode to local time, enter:
F69 LOCAL<CR>
Or, to change the time mode to UTC, enter:
F69 UTC<CR>
XLi responds to these changes with:
OK<CR><LF>
F71 – Oscillator Statistics
Use F71 to display the phase, frequency offset, drift rate, and DAC value of an internal or optional
external oscillator.
Definitions:
The phase is the instantaneous error in seconds between the oscillator and the control loop zero servo
point. The frequency offset is computed using an averaging time that is equal to the effective averaging
time of the oscillator controller. The oscillator Drift Rate is computed using a 24-hour average and is the
daily Drift Rate of the oscillator. The oscillator DAC value is the signed 16-bit integer that controls the
DAC output voltage. It ranges from 0 to 65536.
Command Line
To display the F71 settings, enter:
F71<CR>
XLi responds using the following format:
F71<S>phase=<SIGN><MULT>E<SIGN><EXP><S>s<S><S>offset=<SIGN><MULT>E<SIGN><EXP><S><S>dr
ift=<SIGN><MULT>E<SIGN><EXP>/DAY<S><S>DAC=<SIGN><INT><CR><LF>
F
= ASCII character F.
69 = Function number.
<S> = ASCII space character.
<TT> = Time Type. Either GPS, UTC, TAI, LOCAL, or
STANDARD.
<CR> = carriage return character.
<LF> = line feed character.

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Symmetricom XLi IEEE 1588 Specifications

General IconGeneral
BrandSymmetricom
ModelXLi IEEE 1588
CategoryClock
LanguageEnglish

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