Quectel RG520N-AT - Page 22

5G Module Series
RG520N-AT_Hardware_Design 21 / 109
STATUS
237
DO
Indicates the
module’s
operation status
1.8 V
NET_MODE
240
DO
Indicates the
module’s network
registration mode
NET_STATUS
243
DO
Indicates the
module’s network
activity status
SLEEP_IND
102
DO
Indicates the
module’s sleep
mode
USB Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
USB_VBUS
82
AI
USB connection
detect
Vmax = 5.25 V
Vmin = 3.3 V
Vnom = 5.0 V
For USB connection
detect only.
A test point must be
reserved.
USB_DP
83
AIO
USB 2.0
differential data (+)
Requires differential
impedance of 90 Ω.
USB 2.0 compliant.
Test points must be
reserved.
USB_DM
85
AIO
USB 2.0
differential data (-)
USB_SS_TX_P
91
AO
USB 3.1
SuperSpeed
transmit (+)
Requires differential
impedance of 85 Ω.
USB 3.1 Gen 2
compliant.
USB_SS_TX_M
89
AO
USB 3.1
SuperSpeed
transmit (-)
USB_SS_RX_P
88
AI
USB 3.1
SuperSpeed
receive (+)
USB_SS_RX_M
86
AI
USB 3.1
SuperSpeed
receive (-)
(U)SIM Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
USIM1_VDD
245
PO
(U)SIM1 card
power supply
1.8/2.95 V