Power Supply For Gsm Module From Psu Or Battery; Table 15: Functions Of The S601 Toggle Switch - Siemens DSB45 Manual

DSB45 Development Support Box
Confidential / Released
3.1.4

Power supply for GSM module from PSU or battery

The S601 toggle switch selects whether to feed the GSM module from the connected
laboratory PSU or a battery. Battery operation and charging should be chosen only if
supported by your GSM module, for specifications see [1].
When the S601 switch is in the "Up" position (see Table 15), the GSM module is powered
only from the battery, and the charging function of the GSM module is available. For details
about charging the battery see Chapter 3.1.5.
Note: When the S601 switch is flipped up, it is necessary to keep the 9V laboratory PSU
connected for operating the DSB45 (interfaces, status LEDs, etc).
The functions of the S601 toggle switch are shown in Figure 2 and in Table 15.

Table 15: Functions of the S601 toggle switch

S601 switch setting
Down
Up
DSB45_HD_V05
Function
DSB45 and GSM module are powered from the laboratory PSU
No charging of the battery.
GSM module is battery powered.
Battery can be charged using the battery charge control implemented in
the GMS module (only if plug-in charger connects to X603).
DSB45 must be powered from the laboratory PSU.
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01.02.2008