User’s Manual for Node G
Network Elements
Page 40
M0121A2A.doc
4.3.5. Battery Pack
In case power fails, a battery backup system for controller and modem has been
implemented. This provides enough power for the controller that is integrated into the
DCM and the modem to operate for a limited period of time (battery backup time).
Within this time, the Node G will initiate a call to the OMC and alert the operator that
power has been lost. All other functions will cease to work in case of power failure.
The battery pack is protected from deep discharge. When performing preventive
maintenance, make sure that all circuits are voltage free by disconnecting the battery
cable from the DCM. In case of a power cycle, it is sufficient to press the “Battery
disconnect button” on the EAC-card to interrupt the voltage supply. After mains is
connected again, the battery will be charged and the battery backup function will be
available again.
For technical data of the battery pack refer to chapter Specifications \ Battery Pack.
figure 4-11 Battery pack, exemplary
figure 4-12 Battery pack installed and its
connection to DCM
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