USB TYPE-C和USB3.1 TYPE-B插头线缆接线图

Pin A5 (CC) of the USB Type-C plug shall be connected to GND through a resistor Rd (5.1 kΩ ± 20%).
See Section 4.5.3.2.1 and Table 4-25 for the functional description and value of Rd.This table that shielded twisted pair is used for all SDP’s and
there are drain wires. If coaxial wire construction is used, then no drain wires are present, and the
shields of the coaxial wires are connected to the ground pins.Contacts B6 and B7 should not be present in the USB Type-C plug.All VBUS pins shall be connected together within the USB Type-C plug. A bypass capacitor is
required between the VBUS and ground pins in the USB Type-C plug side of the cable. The bypass
capacitor shall be 10nF ± 20% in cables which incorporate a USB Standard-B plug. The bypass
capacitor shall be placed as close as possible to the power supply pad .All Ground return pins shall be connected together within the USB Type-C plug.Shield and GND grounds shall be connected within the USB Type -C and USB 3.1 Standard-B plugs on
both ends of the cable assembly.All USB Type-C plug pins that are not listed in this table shall be open (not connected)

USB信号定义：http://www.usbzh.com/article/detail-206.html
USB接口大全：http://www.usbzh.com/article/detail-144.html
TYPE-C信号定义：http://www.usbzh.com/article/detail-722.html

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