Symmetricom XLi IEEE 1588 F3 Time & Date, For example, to display the current hour format, send

SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

The XLi responds:

F2<S>D<HH><SEP>I<HH><CR><LF>

where:

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.

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. Following startup, the XLi synchronizes its time

and date to the GPS reference source1. If the XLi doesn’t have GPS as its primary reference source, use F3 to set the time for the IEEE 1588 option card.

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).

1. Normally, with the factory configured settings and a good GPS antenna placement.

40 XLi IEEE 1588 Clock

997-01510-03, Rev. C, 12/12/2006