Application Interfaces; Usb Interfaces - Quectel SC200K Series Instruction Manual

4

Application Interfaces

4.1. USB Interfaces

The module provides two USB interfaces.
USB1 interface:
⚫
Compliant with USB 2.0 specification, with transmission rate up to 480 Mbps
⚫
Supports USB OTG, Type-C
⚫
Supports host and device modes
⚫
USB hub expansion is not supported
⚫
Used for AT command communication, data transmission, software debugging and firmware upgrade
USB2 interface:
⚫
Compliant with USB 2.0 specification, with transmission rate up to 100 Mbps
⚫
Supports host mode only
⚫
Supports USB hub expansion
Table 10: Pin Definition of USB Interfaces
Pin Name Pin No.
USB_VBUS 141, 142
USB1_DM 13
USB1_DP 14
USB2_DM 174
USB2_DP 173
SC200K_Series_Hardware_Design
I/O Description
Charging power input. USB
PI
insertion detect.
AIO USB1 2.0 differential data (-)
AIO USB1 2.0 differential data (+)
AIO USB2 2.0 differential data (-)
AIO USB2 2.0 differential data (+)
Smart Module Series
Comment
Used for USB 5 V power
input.
USB 2.0 compliant.
Require differential
impedance of 90 Ω.
Supports host and device
modes. External USB hub
expansion is not
supported.
USB 2.0 compliant.
Require differential
impedance of 90 Ω.
Supports host mode only.
External USB hub
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