Quectel UMTS Module Series, User Manual

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UMTS/HSPA/LTE Module Series
UMTS&LTE EVB User Guide
UMTS&LTE_EVB_User_Guide 33 / 44
4.10. Status Indication LEDs
The UMTS&LTE EVB comprises five status indication LEDs (D209, D205, D207, D208 and D206). The
following figure shows the positions of these LED indicators.
D209 D205 D207
D208 D206
Figure 29: Status Indication LEDs
Table 11: Description of Status Indication LEDs
Switched to the right: connect the main UART and codec board interfaces
on EVB to UMTS&LTE module, for testing the module's main UART
functions, and the codec‘s PCM function.
S302
Used to turn on/off UC20/EC2x/EG9x/AG35/BG96 modules, or turn on
UGxx modules only
S303 Used to reset UMTS&LTE modules
S301 Used to turn off UGxx modules only
Reference No. Description
D209
VBAT ON/OFF indicator. Indicates whether the power supply for UMTS&LTE modules
is ready.
Bright: VBAT ON
Extinct: VBAT OFF
D205
Power ON/OFF indicator. Indicates the operation status of UMTS&LTE modules.
Bright: the module is powered on
Extinct: the module is powered off
D207 Sleep status indicator. Indicates the sleep status of UMTS&LTE modules.