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Acutime 2000 Synchronization Kit User Guide A-5
A Trimble Standard Interface Protocol
For systems with minimal bandwidth for processing serial data
streams, the receivers can be configured as silent devices, which only
generate I/O when polled. On the other end of the spectrum, the Ace
UTC and Acutime 2000 receivers can be configured to output various
automatic report packets and protocols to satisfy demanding real-time
update requirements of complex monitoring systems.
Event Input
Both receivers feature an event input which can capture and report
time stamps with the same precision as the PPS signal.
Primary Port Features
The Acutime 2000 and Ace UTC both feature a primary bi-
directional port, which is factory configured as for TSIP input and
output.
Secondary Port Features (Acutime 2000)
The Acutime 2000 has a bi-directional, programmable secondary
port, that is designated as the Timing port. The timing port’s protocol
input lines are shared with the Event input feature.
The receiver can be configured to accept protocol input or event
signals, but not both. Acutime 2000 cannot generate event time tags if
port A is configured for RTCM input or TSIP input.
The port can be configured to accept and output data using various
protocols as shown in the table below.
Table A-3 Secondary Port Features (Acutime 2000)
Port Designator Input Default Output Default
“Port A” TSIP, RTCM none TSIP, NMEA TSIP