Quectel RM502Q-GL Hardware Design page 56

The following figure shows a reference circuit for these four pins.
Host
GPIO
GPIO
GPIO
GPIO
NOTE: The voltage level of VCC_IO_HOST depends on the host side and could be 1.8 V or 3.3 V.
RM502Q-GL_Hardware_Design
VCC_IO_HOST
R1 R2 R3
10k 10k 10k
Figure 27: Recommended Circuit for Configuration Pins
R4
10k
CONFIG_0
CONFIG_1
CONFIG_2
CONFIG_3
5G Module Series
RM502Q-GL Hardware Design
Module
NM-0Ω
21
0Ω
69
NM-0Ω
75
NM-0Ω
1
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