Users Manual Part 2

8.4

Site Controller – GPS Module

The GPS module generates a highly accurate timing reference signal within the Base Station. The

integrated GPS module tracks both GPS and Glonass satellites. At least 1 GPS satellite needs to be

traced to provide time reference for the SC. Remote GPS module currently supports GPS and Beidou

GNSS. GLONASS on the remote GPS module will be supported in the future. A proper GPS signal

must be provided to the QMA input connector on the Site Controller. The Site Controller provides a +5

V DC supply voltage on the QMA connector. It provides a voltage supply for active antennas.

NOTICE:

See Hardware Installation on page 89 for description of external GPS.

See respective restoration manual (DIPS/DIPC/X Core systems) or Service Manual (DIPM

system) for procedures on how to verify the internal and external GPS module.

8.5

Site Controller – Lithium Battery

This section contains procedures on how to check if the lithium battery needs changing and how to

correctly replace it.

8.5.1

Resetting the RTC Battery Status

This procedure describes how to reset the status of the RTC battery. Perform this procedure after each

RTC battery replacement.

Procedure:

1 In TETRA Application, enter:

hw rtc reset batteryStatus

The following message appears:

reset RealTimeClock battery status

- Status: OK

2 Set the date and time on the device manually by performing the following actions:

a Ensure that the GPS cable is disconnected.

b Log on to the device with a factory account and enter the current date and time in the

following format: SC# .date <dd/mm/yyyy> <hh:mm:ss>

Step example: SC# .date 02/03/2020 12:23:15

c Restart MTS.

d Connect the GPS cable and wait until the device is synchronized.

8.5.2

Checking if the Site Controller Lithium Battery Needs Changing

Procedure:

1 Perform Resetting the RTC Battery Status on page 332.

2 Power down and then Power up the MTS.

3 Use the Site Controller Test Application to check the RTC alarm by typing alarms -

ofault_hndlr and press Enter.

6802800U74-AP

Chapter 8: Site Controller

332