Usb Connectors - Gestetner B147 Service Manual

6.17.3 USB CONNECTORS

USB is a serial protocol and a physical link, which transmits all data on a single pair
of wires. Another pair provides power to downstream peripherals. The USB
standard specifies two types of connectors, type "A" connectors for upstream
connection to the host system, and type "B" connectors for downstream connection
to the USB device.
Type A connector
6.17.4 PIN ASSIGNMENT
The controller has the type B receptacle (CN10).
3
4
Pin No.
1
2
3
4
SM
B146D583.WMF
2
1
Signal Description
Power
Data –
Data +
Power GND
6-119
Type B connector
B146D582.WMF
B146D928.WMF
Wiring Assignment
Red
White
Green
White
B147/B149/B190
USB