Wwan_Led - Quectel RM500Q-AE Manual

Host
Note: The voltage level of VCC_IO_HOST could be 1.8 V or 3.3 V typically.
Figure 22: W_DISABLE1# and W_DISABLE2# Reference Circuit
3.9.3. Figure 26: W_DISABLE1# and W_DISABLE2# Reference Circuit
3.9.4.3.11.3.

WWAN_LED#*

The WWAN_LED# signal is used to indicate RF status of the module, and its sink current is up to 10 mA.
In order tTo reduce current consumption of the LED, a current-limited resistor must be placed in series
with the LED, as illustrated in the figure below. The LED is ON when the WWAN_LED# signal is at low
level.
Host
Note: This VCC could be the power supply of the module.
The following table shows the RF status indicated by WWAN_LED# .
RM500Q-AE&RM502Q-AE_Hardware_Design
VCC_IO_HOST
R5 R6
10k 10k
GPIO
GPIO
VCC
R1
330Ω
LED
GPIO
Figure 23: WWAN_LED# Reference Circuit
RM500Q-AE&RM502Q-AE Hardware Design
VDD 1.8 V
W_DISABLE2#
26
W_DISABLE1#
8
WWAN_LED# 10
5G Module Series
Module
R2 R3
100k 100k
BB
Module
PMU
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