Trimble Outdoors Part Number 45005-00-ENG manual Running NTP with Event Polling Disabled

NTP Diagnostics and Debugging E

Table E-1 shows troubleshooting options.

Table E-1 Troubleshooting: Acutime is Not Responding

Possible Problem	Solution
Cabling or connectors have become	Connect and secure loose or
detached.	disconnected cables and connectors.
System does not support event	Configure fallback to synchronous polling
polling.	mode. Update NTP software.
No activity of Power or PPS indicators	Confirm availability of wall power. Use a
on the Acutime Synchronization	monitoring utility on Port B to check GPS
Interface Module.	status.
GPS is not tracking satellites.	Receiver may be jammed or obscured.
(The Acutime NTP driver will not	Use a TSIP monitoring utility on Port B to
accept time stamps from the GPS	check GPS health and status. Verify that
receiver if it is not tracking satellites.)	adequate power is being supplied to the
	receiver.

If none of these options solve the problem, check your operating system error log for failure reports.

E.2.4

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Running NTP with Event Polling Disabled

The Acutime NTP reference clock can be operated without event polling.

This mode can be used to confirm communication between the Acutime NTP Reference Clock and NTP, without relying on the event trigger connection. The event trigger feature may not be functional on all systems. If the Acutime NTP driver detects a problem using the event trigger, it reverts to event disabled mode.

Note – Running NTP without the Event Trigger degrades performance to the level of a conventional serial NTP reference clock.

E-12 Acutime 2000 Synchronization Kit User Guide