F52 - Distribution Cable Delay - Symmetricom XLi User Manual

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The XLi responds using the following format:
F51<S>B<N><SEP><SIGN><DELAY>ns<CR><LF>
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where:
= ASCII character F (f or F for input string).
F
= the function number.
51
= ASCII space character one or more.
<S>
= ASCII letter to denote Option Bay number follows
B
= Option Bay Number of the GPS option card, 1 through 10.
<N>
= carriage return character.
<CR>
= one or more space characters.
<SEP>
= either + or blank
<SIGN>
<DELAY> = 1 to 6 digit delay from 0 nS to 999999 nS.
= nanoseconds (ns or NS for input string).
ns
= line feed character.
<LF>
For example, to see the antenna cable delay for the GPS card in option bay 4, enter:
F51 B4<CR>
XLi responds:
F51 B4 +000060ns<CR><LF>
To set the antenna cable delay for an option card, use the following format:
F51<S>B<N><S><DELAY>NS<CR>
For example, to set the antenna cable delay for the GPS card in option bay 4 to 100 nS, enter:
F51 B4 100NS<CR>
XLi responds:
OK<CR><LF>
F52 – Distribution Cable Delay
Use function F52 to display or set the distribution cable delay for the time code and 1 PPS outputs. F52
compensates for the signal's travel time from the XLi to its point of use. The distribution cable delay
applies uniformly to all output ports. The as-shipped factory setting is +0 ns. The range of possible
values is +999,999 ns to –999,999 ns. Positive values advance the timing signals, while negative values
retard them.
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XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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