Enabling GPS time setting
From aa-asterisk.org.uk wiki
On the Router Board console you will need to disable the console on the serial port.
This is done with
Always a good idea to check and see how the serial port on the RouterBoard is set.
This takes you to the port menu
print Flags: I - inactive # NAME USED-BY BAUD-RATE 0 serial0 serial-console 2400
If USED-BY shows serial-console you will need to disable this.(see below)
This will take you to the console menu
This will disable the console from serial0 if you have a different number for your serial port you need to use that number.
This takes you to the GPS menu
set enabled=yes port=serial0
This will enable the GPS module and set it to use serial0, once you've enable the GPS you can check to see if the GPS is using the serial0
/port print Flags: I - inactive # NAME USED-BY BAUD-RATE 0 serial0 GPS 2400
This means all is well once you have your GPS connected to serial0 you can then check to see if you have a valid GPS fix.
/system GPS monitor date-and-time: nov/30/1999 00:00:00 longitude: "none" latitude: "none" altitude: "none" speed: "none" valid: no -- [Q quit|D dump|C-z pause]
Once you have a valid fix you will see all the fields populated
date-and-time: jul/23/2003 12:25:00 longitude: "E 24 8' 17''" latitude: "N 56 59' 22''" altitude: "-127.406400m" speed: "0.001600 km/h" valid: yes