BIXOLON SRP-E770III Series, Service Manual, Page: 28 / 63

SRP-E770III
3-5-3 USB interface
1) Specifications
Item Description Remark
Transfer Type
•
BULK
Data Signal
•
Bidirection, Half-Duplex
•
Differential Signal Pair (D+ / D-)
Data Format
•
NRZI Format
•
Zero Bit Stuffing after 6 ones
Transceiver
•
Differential Receive Sensitivity : 200 mV
•
Differential Common Mode Range : 0.8 ~ 2.5 V
•
Single-End Receiver Threshold : 0.8 ~ 2.0 V
Speed
•
Hi-Speed, 480M bps
Power
•
Self-Powered
Cable
& Connector
•
Cable : A to B Type Standard
•
Connector : B Type
Other
•
Supports the 480 Mbps high-speed(HS) mode for USB 2.0, as
well as the 12 Mbps full-speed (FS) and the 1.5Mbps low-speed
(LS) mode for USB 1.1
2) Signal Description
Pin No Signal Name Assignment(Color) Function
Shell Shield Drain Wire Frame Ground
1 VBUS Red Host Power : DC5V/500mA
2 D- White Differential Data Line
3 D+ Green Differential Data Line
4 GND Black Signal Ground
3) USB I/F Cable
Host Side
A Type
Printer Side
B Type
Ver. 1.01
- 28 -