5G Module Series
RM500Q-GL Hardware Design
RM500Q-GL_Hardware_Design 52 / 85
The module operation status indicated by WAKE_ON_WAN# is shown as below.
Table 24: State of WAKE_ON_WAN#
Host Module
WAKE_ON_WAN#
BB
GPIO
23
VCC_IO_HOST
Wake up the host
1s
H
L
R1
10k
NOTE: The voltage level on VCC_IO_HOST depends on the host side due to the open drain in pin 23.
Figure 26: WAKE_ON_WAN# Signal Reference Circuit
4.5.5. DPR*
RM500Q-GL provides a DPR (Dynamic Power Reduction) pin for body SAR (Specific Absorption Rate)
detection. The signal is sent from the proximity sensor of a host system to RM500Q-GL module to provide
an input trigger, which will reduce the output power in radio transmission.
Table 25: Function of the DPR Signal
See document [4] for more details about the command AT+QCFG="sarcfg".
Output a one-second pulse signal at low level
Call/SMS/Data is incoming (to wake up the host)
Always at high voltage level
NO max. transmitting power backoff
Max. transmitting power backoff by AT+QCFG="sarcfg"
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