09-02-2021 07:30 AM
Dear All,
Recently I was doing NCS540 (N540X-16Z4G8Q2C-A) as a GM test. After 2 days of Survey-in, it could not enter Time-fix mode. There are very few instructions on setting GNSS in the file. N540X-16Z4G8Q2C-A looks like The U-Blox M8T module is used. Can anyone provide information on how to configure the GNSS module through the CLI?
09-03-2021 11:54 AM
Hi @alansung1 ,
here is the configuration guide
Configuration Example This section describes how you can configure GNSS for a router. /* Enable the GNSS receiver and enter the gnss-receiver submode */ RP/0/RP0/CPU0(config)# gnss-receiver 0 location RP/0/RP0/CPU0(config-gnss)# no shutdown RP/0/RP0/CPU0(config-gnss)# frequency synchronization RP/0/RP0/CPU0(config-gnss-freqsync)# selection input RP/0/RP0/CPU0(config-gnss-freqsync)# commit Optional Configuration Example RP/0/RP0/CPU0(config)# gnss-receiver 0 location RP/0/RP0/CPU0(config-gnss)# anti-jam disable RP/0/RP0/CPU0(config-gnss)# constellation GPS RP/0/RP0/CPU0(config-gnss)# snr threshold 10 RP/0/RP0/CPU0(config-gnss)# frequency synchronization RP/0/RP0/CPU0(config-gnss-freqsync)# selection input RP/0/RP0/CPU0(config-gnss-freqsync)# priority 5 RP/0/RP0/CPU0(config-gnss-freqsync)# wait-to-restore 180
09-03-2021 05:37 PM
In addition to the above configuration examples, are there other related documents? Such as command function and parameter description, and simple troubleshooting.
09-22-2021 02:27 AM
The manual of NCS540 is not very complete, please refer to the link above, there should be some problems with the sample at the end of the manual. Hope to have more detailed documents.
-------------------Configure the Global Navigation Satellite System----------
The following is the output of the show gnss-receiver command on the router models - N540-24Z8Q2C-SYS, N540-28Z4C-SYS, N540-ACC-SYS, and N540X-ACC-SYS. <<< Over determined clock mode ( could be Trimble module)
RP/0/RP0/CPU0:R6#sh gnss-receiver Fri Jan 17 07:27:34.804 UTC GNSS-receiver 0 location 0/RP0/CPU0 Status: Available, Up Position: 12:56.18 N 77:41.77 E 0.823km Time: 2020:01:17 07:31:41 (UTC offset: 0s) Locked at: 2020:01:15 17:15:28 Firmware version: TIM 1.10 <<<< U-Blox M8T firmware version - the sample is not match
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