Symmetricom XLi IEEE 1588 User Manual

2

5

1

where:

For example, to change the time mode to local time, enter:

Or, to change the time mode to UTC, enter:

XLi responds to these changes with:

OK<CR><LF>

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:

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.