Quectel Mini PCIe-C EVB, User Manual

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UMTS/HSPA+/LTE Standard Module Series
Mini PCIe-C EVB User Guide
Mini_PCIe-C_EVB_User_Guide 30 / 39
4.7. Status Indicators (D103/D101)
The Mini PCIe-C EVB provides two status indicators D103 and D101. The following figure shows the
location of the two LED indicators.
D103 D101
Figure 26: Status Indicators
Table 12: Description of D103 and D101
Reference No. Description
D103
VBAT ON/OFF indicator indicating whether the power supply for Mini PCIe
modules is ready.

Bright: VBAT ON

Extinct: VBAT OFF
D101
Network status indicator indicating the network status of Mini PCIe modules.
Bright: Register the network.

Slow flashing (200ms low/1800ms high): Searching for network

Slow flashing (1800ms low/200ms high): Standby mode

Fast flashing (125ms low /125ms high): Data transmission mode
Extinct:

No network coverage or not registered.

W_DISABLE# signal is at a low level.

AT+CFUN=0 or AT+CFUN=4 .