Orolia Spectracom VelaSync 1232, User Manual

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Command Description
stateset Enable or disable an entry in the reference priority table. index = 0...15. state = 0
(disable), 1 (enable)
status Displays information about the oscillator disciplining
syncstate Display timing system synchronization state
sysupgrade Performs system upgrade using the update bundle provided
testevent Generates SNMP events in the enterprise MIB
tfomget Displays current estimated system time error (TFOM – Time Figure of Merit)
timeget Displays current system time (time is displayed in the configured timescale –
See
scaleget
command to retrieve the configured timescale)
timeset Used to manually set the current time (hours, minutes in seconds); time is
entered based on the configured timescale – See
scaleget command to
retrieve the configured timescale
unrestrict Used for clearing access control restrictions to VelaSync
version Displays the installed main VelaSync and timing system software versions
yearget Displays the current year
yearset Used to set the current year
zeroize Applicable to SAASM-equipped VelaSync units only
5.3 IRIG Standards and Specifications
5.3.1 About the IRIG Output Resolution
The IRIG output signals are generated from VelaSync's System Time, which can be synced
to one or more external input references (such as GPS, IRIG, PTP, etc). The accuracy of
the System time to true UTC time is dependent upon what the selected external ref-
erence is (with GPS typically being the most accurate reference for the system to sync
with).
IRIG AM synchronization of a device to its IRIG source is typically measured in the tens of
microseconds, while synchronization using a IRIG DCLS signal can typically provide around
100 nanoseconds or so (plus the cable delays between VelaSync and the other device, as
well as the processing delays of the other system itself).
IRIG AM functionality is available through an option card.
220 VelaSync 1232 User Manual
APPENDIX