Operating Status Led - SimCom SIM900D EVB User Manual
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Also See for SIM900D EVB:
- Command manual (8 pages) ,
- Hardware design (51 pages) ,
- Hardware design (63 pages)
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SIM900D EVB User Guide
3.6 Operating Status LED
Working state of status LED as list:
Name
Description
Q1
VBAT ON/OFF indicator
Q2
GSM part status indicator
Q3
GSM_NET status indicator
SIM900D-EVB_UGD_V1.01
Figure 9: StatusLED
STATUS
Bright：VBAT ON;
Extinct: VBAT OFF
Bright: Module runs normally
Extinct:
System
unconventionally
Blinking at a certain frequency according various GSM net status
13
is
powered
down
or
module
runs
01.07.2010
- Quick Links:
- Connecting Net and Calling
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