RSR GNSS Transcoder™ User Manual
96
© 2017 Jackson Labs Technologies, Inc.
4.14.12 SERVo?
This command returns the result of the following queries:
SERVo:COARSeDac?
SERVo:DACGain?
SERVo: EFCScale?
SERVo:EFCDamping?
SERVo:SLOPe?
SERVo:TEMPCOmpensation?
SERVo:AGINGcompensation?
SERVo:PHASECOrrection?
SERVo:1PPSoffset?
SERVo:TRACe?
4.15 CSAC Subsystem
The following commands are used to query the microcontroller built into the optional CSAC
oscillator. These commands are only available on the RSR GNSS Transcoder™ with the optional
CSAC oscillator installed.
4.15.1 CSAC:POWer
This command enables/disables the low power mode on the CSAC oscillator. The low power mode
is enabled when the power is set to OFF at which point the CSAC will disable all its internal circuitry
and the module will operate as a TCXO based unit. The default setting is ON.
When the CSAC power is OFF, the internal TCXO is used instead of the CSAC as the timing
reference for the system. The SERVo:LOOP? query response also outputs the current timing
reference for the system (TCXO or CSAC).
The format of this command is:
CSAC:POWer <ON | OFF>
4.15.2 CSAC:RS232?
This query returns the state (OK or FAIL) of the serial communication between the main CPU and
the CSAC internal microcontroller. When the state is FAIL, there is a communication breakdown,
and the unit should be power cycled to clear the communication error.
4
[Value not defined]
5
Holdover, but still phase locked (stays in this
state for about 100s after GNSS lock is lost)
6
Locked, and external GNSS active
Summary of Contents for RSR GNSS Transcoder
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