Ricoh B121 - Pin Assignment; Usb Connectors

USB
SM 25 B622
Printer/
Scanner
B622
4.8.3 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.
4.8.4 PIN ASSIGNMENT
The controller has a type “B” receptacle.
B622D918.WMF
B622D919.WMF
12
34
B622D906.WMF
Pin No. Signal Description Wiring Assignment
1 Power Red
2 Data – White
3 Data + Green
4 Power GND White
Type “A” connector Type “A” connector