F3 - Time & Date - Symmetricom XLi User Manual

S S S S S S S
where:
= ASCII character F.
F
1
= Function number.
02
= ASCII space character (one or more).
<S>
= ASCII character for Display format.
D
<HH> = 12 or 24.
= ASCII character for IRIG format
I
<CR> = Carriage return character.
<LF> = Line feed character.
For example, to display the current hour format, send:
F2<CR>
The XLi responds:
F2 D24 I24<CR><LF>
To set the hour format, send:
F2 D12 I24<CR>
XLi responds:
OK<CR><LF>
F3 – Time & Date
Use function F3 to set the XLi system clock's time and date. If the XLi is using GPS as its primary
reference source, setting F3 manually is unnecessary. At startup, the XLi synchronizes its time and date
to GPS. If the XLi is using IRIG is the primary reference source, use F3 to set the year. (Some IRIG time
code does not contain year information).
F3 prompts the user for the Time Mode, the Date in mm/dd/yyyy format, and the Time in hh:mm:ss
format. The hours in hh:mm:ss should be given using 24-hour notation (e.g., 6 pm = 18:00).
TIME MODE selects which type of time (Local/Standard/GPS/UTC) is being entered by the user. The
XLi, translates the user entry into its equivalents in other types of time. For example, entering LOCAL -
07/14/2002 - 15:47:10 in F3 shows up on the front keypad display as UTC 198:10:47:10. TIME MODE in
F3 defines only the entry of time in F3; it does not control the type of time displayed or output by the XLi.
F3's Time Mode should not be confused with F69 (see
type of time displayed/output on the front panel display,
Time On Request, and
50
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S S S S S S S S S
F90 – Code Output
S S S S S S S S S
"F69 – Time Mode" on page
F8 - Continuous Time
Configuration.
S S S S S S S S S
89). F69 controls the
Once-per-Second,
XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
S S S S S S
F9 -