V1.0 Page 46 of 46 ICM MP CCQ ST
C45, M50 AND MT50 Company Confidential © Copyright Siemens AG 05/02
9.4 Battery Connector
The battery is connected via the battery connector (X386) to the battery contacts
on the RF-Board.
Directly connected to battery, there is a voltage regulator (N386). This regulator
Is used to provide the external accessories with the required voltage.
To extend STAND-BY time, the regulator is switched on with the signal ZUB_On
only if accessories are recognised.
Responsible for the ZUB_ON signal is the ASIC (D361).
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