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Host
Notes: The voltage level of VCC_IO_HOST could be 1.8 V or 3.3 V typically.
Figure 24: W_DISABLE1# and W_DISABLE2# Reference Circuit
4.5.3. WWAN_LED#
The WWAN_LED# signal is used to indicate RF status of the module, and its sink current is up to 10 mA.
To 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.
The following table shows the RF status indicated by WWAN_LED# .
Table 23: Network Status Indications of WWAN_LED#
WWAN_LED# Level
Low Level (LED ON)
RM510Q-GL_Hardware_Design
VCC_IO_HOST
R5
R6
10k
10k
GPIO
GPIO
Figure 25: WWAN_LED# Reference Circuit
Description
RF function is turned on
RM510Q-GL Hardware Design
Module
VDD 1.8V
100k
W_DISABLE2#
26
W_DISABLE1#
8
5G Module Series
R2
R3
100k
BB
49 / 88
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