Quectel LTE OPEN EVB - Page 13

LTE Module Series
LTE OPEN EVB User Guide
LTE_OPEN_EVB_User_Guide 12 / 62
1.
1)
VBAT (T0104) is a test point on LTE OPEN EVB, and is used to test the current of the modules. If it
is used to supply power for the modules, then R0106 should be disconnected.
2.
2)
The maximum baud rate is limited to the RS232 level shifter chip on the EVB. For the maximum
baud rates supported by the modules, please refer to their respective hardware designs.
Switches and Buttons
Five Switches:
 Power Switch (S0301) for VBAT ON/OFF control
 SDC1 function switch (S0201) for switching between GPIO and Wi-Fi
function.
 SDC2 function switch (S0701) for switching between SD and eMMC
functions.
 PCM function switch (S1001) for switching between BT and codec
functions.
 Switch S0401 reserved for internal testing.
Two Buttons:
 PWRKEY (S0403) for turning on/off LTE-QuecOpen modules
 RESET (S0402) for resetting LTE-QuecOpen modules
Physical Characteristics
Size: 200.0mm × 145.0mm × 1.6mm
NOTES