Quectel RM502Q-GL Hardware Design page 21

5 GND
FULL_CARD_
6
POWER_OFF#
7 USB_DP
8 W_DISABLE1#
9 USB_DM
10 WWAN_LED#
11 GND
12 Notch
13 Notch
14 Notch
15 Notch
16 Notch
17 Notch
18 Notch
19 Notch
20 PCM_CLK
21 CONFIG_0
22 PCM_DIN
23 WAKE_ON_WAN#
24 PCM_DOUT
25 DPR*
RM502Q-GL_Hardware_Design
Ground
Turn on/off of the
module.
DI
High level: Turn on
Low level: Turn off
USB 2.0 differential
AIO
data (+)
Airplane mode
DI, OD control.
Active LOW.
USB 2.0 differential
AIO
data (-)
RF status indication
DO, OD LED
Active LOW
Ground
Notch
Notch
Notch
Notch
Notch
Notch
Notch
Notch
DIO, PD PCM data bit clock
Not connected
DO
internally
DI
PCM data input
Wake up the host.
DO, OD
Active LOW.
DO, PD PCM data output
Dynamic power
DI, PU reduction.
High level by default.
5G Module Series
RM502Q-GL Hardware Design
V max = 4.4 V Internally pulled
IH
V min = 1.19 V down with a
IH
100 kΩ resistor
V max = 0.2 V
IL
1.8/3.3 V
VCC
1.8 V
1.8 V
1.8/3.3 V
1.8 V
1.8 V
20 / 83