Module Specific Power Supply Settings; Figure 10: Default Setting Of X133 Slide Switch - Siemens DSB45 Manual

DSB45 Development Support Box
Confidential / Released
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.
DSB45_HD_V05
Default
RFconnector
X505
Antenna
connector
X506
Page 25 of 50
s
S601 Battery
X602
connector
Power
GND
1
Supply
Switch
GND
BATT_TEMP
Battery+
Battery+
5
up: Battery
down: normal supply
Connector for
charger / audio2
Power On
LED
X603
V618
12
01.02.2008
1