Usb Interface; Usb Interface Definition; Usb2.0 Interface Application - Fibocom L860-GL Hardware User Manual

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3.4.2 USB Interface

The L860 module supports USB2.0 which is compatible with USB High-Speed (480 Mbit/s) and USB Full-
Speed (12 Mbit/s).For the USB timing and electrical specification of L860 module, please refer to Universal
Serial Bus Specification 2.0".
When module inserted PC, USB can enumerate three ACM and three NCM ports in Android/Linux system,
the ports can be configured in practical application.

3.4.2.1 USB Interface Definition

Pin# Pin Name
7
USB_D+
9
USB_D-

3.4.2.2 USB2.0 Interface Application

The reference circuit is shown in Figure 3-14:
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FIBOCOM_L860-GL Hardware User Manual
Correct match
Figure 3-13 Length Match Design of PCIe Difference Pair
I/O Description
I/O USB Data Plus
I/O USB Data Minus
Figure 3-14 Reference Circuit for USB 2.0 Interface
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Type
0.3---3V,
USB2.0
0.3---3V,
USB2.0
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