Symmetricom XLi IEEE 1588 User Manual

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The XLi responds:

F72<SP>PLL: <CLK PLL ><SP> CLK: <CLK STATUS><SP><CLK REF:><SP> PWR1:<PWR1 STATUS><SP>  

PWR2: <PWR2 STATUS><SP>OSC: <OSC STATUS> <CR><LF>

where:

For example, enter:

The XLi responds:

F72 CLOCK PLL              LOCKED

    CLOCK STATUS LOCKED GPS PRI

    PRIMARY POWER SUPPLY   OK

    SECONDARY POWER SUPPLY OK

Use function F73 to do the following:

•

See the state of an indicator (“Locked/Unlocked” or “OK/Fault”) 

•

Enable or disable the alarm for each indicator

F

= ASCII character F

72

= function number

<SP>

= ASCII space character one or more.

<CLK PLL>

= Clock Phase Loop Lock status, LOCKED or UNLOCKED

<CLK STATUS>

= Clock Status, LOCKED or UNLOCKED to the reference source shown. The 

LOCKED state is based on the F73 Time Threshold value entered by the 
operator. F73 Time Threshold sets the threshold in ns above which Time Error 
triggers an alarm. When the oscillator's predicted worst-case time error ("F13 - 
Time Error" on page 51) exceeds F73 Time Threshold, Time Error enters a fault 
state and the CLOCK STATUS becomes UNLOCKED. Otherwise the CLOCK 
STATUS is LOCKED.

<CLK REF>

= Clock reference source GPS PRI, GPS SEC, PTP PRI, PTP SEC, (not 

supported: IRIG A, IRIG B, NASA 36) AUX REF.

<PWR1 STATUS>

= Primary Power Supply status, OK or FAILED

<PWR2 STATUS>

= Secondary Power Supply status, OK or FAILED

<OSC STATUS>

= Rubidium oscillator status, OK or FAILED (if installed)

<CR><LF>

= output line terminator