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Symmetricom XLi IEEE 1588 User Manual

Symmetricom XLi IEEE 1588
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XLi IEEE 1588 Clock 57
997-01510-03, Rev. C, 12/12/2006
2
5
1
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
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.
To calculate what the setting should be, multiply the delay/foot by the length of the cable in feet. The
typical delays for the following cable types are:
RG-58 – approximately 1.4 ns/foot
RG-59 – approximately 1.24 ns/foot
Command Line
To display the current distribution cable delay, enter:
F52<CR>
The XLi responds using the following format:
F52<SEP><SIGN><DELAY>ns<CR><LF>

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Symmetricom XLi IEEE 1588 Specifications

General IconGeneral
BrandSymmetricom
ModelXLi IEEE 1588
CategoryClock
LanguageEnglish

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