Rev. 1.00
- 47 -
SRP-275II
3-5-2(d) IEEE1284 I/F Cable
3-5-3 USB Interface
*Related model: IFG-U
SRP-275II support the USB (Universal Serial Bus) Communication.
3-5-3(a) Specification
Item
Description
Remark
Transfer type
• BULK
Data Signal
• Bi-direction, 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
• 480 Mbps (High-Speed)
Power •
Self-powered
Cable & connector
• Cable : 5m / 2m
• Connector : A/B type
Other
• Support USB spec V2.0 Hi-speed
3-5-3(b) Signal Description
Pin No.
Signal name
Assignment (Color)
Function
Shell Shield
Drain
wire
Frame
ground
1 VBUS
Red
NC
2
D-
White
Differential data line
3
D+
Green
Differential data line
4 GND
Black
Signal
ground
3-5-3(c) USB I/F Cable