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M20 EVB User Guide
3.7. Operating status LED
Table 9: Operating status indication LED
Part
L1
5V ON/OFF indicator
L2
GSM_NET status indicator
M20_EVB_UGD_V1.01
Figure 11: Operating status indication LED
Name
I/O
Description
On: VBAT ON
O
Off: VBAT OFF
Blinking
differently
O
various GSM network status
to
indicate
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