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SIM900B EVB User Guide
SIM900B-EVB_UGD_V1.01
8
14.04.2010
3. Accessory Interface
3.1 Power
Interface
Figure 4
：
Power
Interface
Pin
Signal
I/O
Description
1 Adapte
r
input
I
5V/2.5A DC s
ource input
1
...
...
6
7
8
9
10
...
...
20
