IP/HOST: Name and real-time status (color-coded)
REF ID: Identifies the type of Input REFerence e.g., GPS indicates the ref-
erence can use GPS for its synchronization. Below is a list of potential REF
IDs reported by the SecureSync Timing System (otherNTP Servers and
Peers may report different references):
GPS: GNSS reference
IRIG: IRIG reference
HVQ: HAVE QUICK reference
FREQ: Frequency reference
PPS: External 1PPS reference
PTP: PTP reference
ATC: ASCII time code reference
USER: User provided time
LOCL: Local reference (synced to itself)
INIT: NTP on server/peer is initializing
STEP: NTP on server/peer is performing initial synchronization step
and restarting
AUTH STATUS: Indicates if the selected reference is using MD5 authen-
tication. “None” indicates authentication not being used.
LAST: The number of seconds that have expired since this reference was
last polled for its time.
POLL: The polling interval, i.e. how often SecureSync is polling this NTP ref-
erence for its time.
DELAY (ms): The measured one-way delay between SecureSync and its
selected reference.
2.15.8.2 NTP Servers: Adding, Configuring, Removing
To add, configure, or remove an NTP Server:
2.15 Configure NTP
CHAPTER 2 • SecureSync 2400 User Manual Rev. 5.2
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