F67 - Leap Second Information; F72 - Fault Status Request - Symmetricom Time Server User Manual

Chapter 4: Serial or Telnet I/O Functions
4.3.6 F67 – Leap Second Information
Use Function 67 to retrieve information regarding upcoming leap seconds. This is
satellite information and cannot be changed through the unit. Although UTC leap second
adjustments may be performed on four occasions annually, in practice they are only
performed twice: June 30
To return the leap second status, send the following command:
where
An example of the response might be:
This response indicates there is a leap second addition during the last minute of
June 30, 1996.
If there was no leap second pending, the response might be:
4.3.7 F72 – Fault Status Request
Use Function F72 to display the status of the antenna feed circuit, and GPS lock status
fault detectors within the unit.
To display the status of the fault detectors, send the following command:
The unit responds:
where:
Sample entry:
The response might be:
4-58
th
and December 31
F67<Enter>
F =
F =
<Enter> =
<CR><LF> =
F67 06/30/96 +1 <CR><LF>
F67 none <CR><LF>
F72<Enter>
F72<SP>Antenna: <ANT STATUS> GPS: <GPS STATUS><CR><LF>
F =
72 =
<SP> =
<ANT STATUS> =
<GPS STATUS> =
<CR><LF> =
F72<Enter>
F72 Antenna: OK
st
.
ASCII character
function number
input line terminator
output line terminator
ASCII character F
function number
space
OPEN, GOOD or SHORTED
LOCKED, UNLOCKED
output line terminator
GPS: Locked<CR><LF>
TimeVault™ User's Manual
Function Commands
6000-100Ch4.fm Rev. D