Quectel 5G Module Series - Dpr; Status; Cellular;Wlan COEX Interface

5G Module Series
RM500Q-AE&RM502Q-AE Hardware Design
RM500Q-AE&RM502Q-AE_Hardware_Design 52 / 86
4.5.5. DPR*
The module provides the DPR (Dynamic Power Reduction) pin for body SAR (Specific Absorption Rate)
detection. The signal is sent from a host system proximity sensor to the module to provide an input trigger,
which will reduce the output power in radio transmission.
Table 25: Function of the DPR Signal
See document [3] for more details about AT+QCFG="sarcfg" command.
4.5.6. STATUS*
The module provides two status indication pins for communication with IPQ807x device. Pin 38
(SDX2AP_STATUS) outputs the status indication signal to IPQ807x device, and pin 68
(AP2SDX_STATUS) inputs the status indication signal from IPQ807x device. For more details, see
document [4].
4.6. Cellular/WLAN COEX Interface*
The module provides the cellular/WLAN COEX interface, the following table shows the pin definition of
this interface.
Table 26: Pin Definition of COEX Interface
DPR Level
Function
High/Floating
NO max. transmitting power backoff
Low
Max. transmitting power backoff by AT+QCFG="sarcfg"
Pin No.
Pin Name
I/O
Description
DC Characteristics
59
LAA_TX_EN*
DO
Notification from SDR to WLAN when
LTE transmitting
1.8 V
60
WLAN_TX_EN*
DI
Notification from WLAN to SDR while
transmitting
1.8 V
NOTE