Checking If The Site Controller Lithium Battery Needs Changing; Replacing The Site Controller Lithium Battery - Motorola DIMETRA MTS 4 Installation, Configuration, And Service Manual

Applicant: Motorola Solutions
276 | Site Controller

Checking if the Site Controller Lithium Battery Needs Changing

Procedure:
1 Perform Resetting the RTC Battery Status on page
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.
4
• If the battery is OK there should be no RTC related alarms reported. There is no need to change the Site
Controller Lithium Battery.
• If the battery still reports RTC related alarms, the battery is not working properly or not working at all.
Proceed to

Replacing the Site Controller Lithium Battery

Caution: Danger of explosion if battery is replaced incorrectly. Replace battery only with the same or
equivalent type recommended by manufacturer. Dispose of used batteries according to the manufacturers
instructions.
Procedure:
1 Examine the contents of the flash filling system using the monitor command SC> attrib. Record the file
attributes for each of the files.
2
Switch the MTS Power Supply Unit OFF.
3 Wear an ESD strap and connect its cable to a verified good ground. This strap must be worn to prevent ESD
damage to any components.
4 Tag and disconnect any cabling from the Site Controller.
5 Loosen the two M4X10 captive screws securing the Site Controller to the chassis.
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Replacing the Site Controller Lithium Battery on page
Warning: Shock Hazard. The MTS contains dangerous voltages which can cause electrical shock or
damage to equipment. Turn off the MTS and remove the power cabling before servicing this equipment.
Make sure that all power is off to prevent accidental contact with high energy and injury to personnel.
Important: If two PSUs are present, switch off the supplying the Site Controller being replaced. Do not
power down the MTS. In configuration with non-redundant power connection, the MTS Power Supply
Unit can be switched off as an alternative to removing the cables.
Equipment Type: ABZ89FC5827 / 109AB-5827
275.
276.
Exhibit D2