DSB45 Development Support Box
Confidential / Released
s
DSB45_HD_V05
Page 25 of 50
01.02.2008
3.1.1
Module specific power supply settings
Designed for a great variety of Siemens wireless products the DSB45 Development Support
Box meets the power supply requirements of different GSM modules.
Note that for all supported products except
AC45 the position “POWER” of the slide
switch X133 is mandatory (default setting on
delivery of DSB45).
Figure 10: Default setting of X133 slide switch
In the case of AC45 the setting of X133 may need to be changed. If the AC45 application
uses a single power supply source, retain the default setting “POWER”. If the AC45
application uses two separate power supply sources, X133 must be flipped to position “3V3”.
See [1] and [3] for details on power supply requirements specific to AC45.
PO
W
ER
PO
W
ER
3V
3
Power
Supply
Switch
up: Battery
down: normal supply
1
5
GND
GND
BATT_TEMP
Antenna
connector
RFconnector
Power On
LED
Connector for
charger / audio2
Battery
connector
1
12
X505
X506
V618
X603
X133
S601
X602
Default
