Quectel RM520N-GL Hardware Design page 25

30 USIM1_RST
31 USB_SS_TX_P
32 USIM1_CLK
33 GND
34 USIM1_DATA
35 USB_SS_RX_M
36 USIM1_VDD
37 USB_SS_RX_P
38 WLAN_TX_EN*
39 GND
8
40 USIM2_DET
41 PCIE_TX_M
42 USIM2_DATA
43 PCIE_TX_P
44 USIM2_CLK
45 GND
46 USIM2_RST
47 PCIE_RX_M
48 USIM2_VDD
8
This pin is pulled LOW by default, and will be internally pulled up to 1.8 V by software configuration only when (U)SIM
hot-plug is enabled by AT+QSIMDET.
RM520N-GL_Hardware_Design
DO, PD (U)SIM1 card reset
USB 3.1 super-speed
AO
transmit (+)
DO, PD (U)SIM1 card clock
Ground
DIO, PU (U)SIM1 card data
USB 3.1 super-speed
AI
receive (-)
Power supply for
PO
(U)SIM1 card
USB 3.1 super-speed
AI
receive (+)
Notification from WLAN
DI to SDR while
transmitting
Ground
(U)SIM2 card hot-plug
DI, PD
detect
AO PCIe transmit (-)
DIO, PU (U)SIM2 card data
AO PCIe transmit (+)
DO, PD (U)SIM2 clock
Ground
DO, PD (U)SIM card reset
AI PCIe receive (-)
(U)SIM card power
PO
supply
5G Module Series
USIM1_VDD
1.8/3.0 V
USIM1_VDD
1.8/3.0 V
USIM1_VDD
1.8/3.0 V
USIM1_VDD
1.8/3.0 V
1.8 V
1.8 V
USIM2_VDD
1.8/3.0 V
USIM2_VDD
1.8/3.0 V
USIM2_VDD
1.8/3.0 V
USIM2_VDD
1.8/3.0V
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