Epson Photo750 manual USBUniversal Serial Bus Interface, Connector pin assignment and signals

EPSON Stylus Photo 750 Revision A

1.3.4 USB(Universal Serial Bus) Interface

Following shows specification.

†Standard: Based on

„Universal Serial Bus Specifications Revision 1.0

„Universal Serial Bus Device Class Definition for Printing Devices version 1.0

† Bit rate:	12Mbyte(Full Speed Device)
† Data encording:	NRZI
† Adaptable connector:	USB Series B

†Recommended cable length: 2 meters

Table 1-14. Connector pin assignment and signals

Pin.	Signal Name	I/Out	Function Description
No
1	VCC	--	Cable power. Maximum power
			consumption is 100mA.
2	-Data	Bi-	Data
		directional
3	+Data	Bi-	Data. Pull up to +3.3V via 1.5K ohm
		directional	resistor.
4	Ground	--	Cable ground.

P in 2 P in

P in 3 P in 4

Figure 1-11. USB Interface Port

Product Description Parallel Interface 19