Symmetricom XL-GPS - Manual (Page 46)

36 997-01530-01, Rev. C-25, Jan 2008
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Note: Local time is commonly displayed in both 12 and 24 formats. The specifications for Standard,
UTC, and GPS call for using the 24-hour format. Applying the 12-hour format to any time type
leads to ambiguous time notation. For example, if the 12-hour format is applied to UTC, the clock
will display “249:10:21:34” once in the morning, and once at night.
The factory settings for F2 are 24-hour format for the display and 24-hour format for IRIG (F90)
Command Line
To display the current hour format, send:
F2<CR>
XL-GPS responds:
F2<S>D<HH><SEP>I<HH><CR><LF>
where:
For example, to display the current hour format, send:
F2<CR>
XL-GPS responds:
F2 D24 I24<CR><LF>
To set the hour format, send:
F2 D12 I24<CR>
XL-GPS responds:
OK<CR><LF>
F
= ASCII character F.
02
= Function number.
<S>
= ASCII space character (one or more).
D
= ASCII character for Display format.
<HH>
= 12 or 24.
I
= ASCII character for IRIG format
<CR>
= Carriage return character.
<LF>
= Line feed character.