Command line, If an gps c/a receiver is available, f53 displays, F53 responds using the following format – Symmetricom XLi IEEE 1588 User Manual
Page 67: Where: for example, enter, Gps m12 availability option bay, Gps mode select auto mode (or dynamic mode), Save changes? yes, F53 bb

XLi IEEE 1588 Clock
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997-01510-03, Rev. C, 12/12/2006
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If an GPS C/A Receiver is available, F53 displays:
GPS M12 AVAILABILITY
OPTION BAY #
Where # is the option bay number the card is located in. If more than one GPS C/A Receiver is present,
use the UP/DOWN ARROW buttons to select the option bay location of a specific card.
To view the mode the GPS C/A Receiver is in, press ENTER again, and F53 displays the current mode:
GPS MODE SELECT
AUTO MODE (or DYNAMIC MODE)
To change the mode, use the UP/DOWN ARROW buttons and press ENTER. F53 asks:
SAVE CHANGES?
YES
To save changes, press ENTER.
Command Line
To request the GPS operation mode of the GPS C/A Receiver (87-8028-2), enter:
F53 B
F53 responds using the following format:
F53
where:
For example, enter:
F53 B1
F
= ASCII character F (f or F for input string).
53
= the function number.
= ASCII space character one or more.
B
= ASCII letter to denote Option Bay number follows
= Option Bay Number, 1 through 4.
= one or more space characters.
= DYNAMIC MODE or AUTO MODE
= carriage return character.
= line feed character.