Bixolon SRP-350 User Manual

 

3-5-3 USB2.0 Interface 
 
SRP-350plus support the USB (Universal Serial Bus) Serial 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 

• 12 Mbps 

 

Power • 

Self-Powered 

 

Cable & Connector 

• Cable : 5m / 2m 
• Connector : B Type 

 

Other 

• Support USB SPEC V1.1 

 

Table 3-18 USB Specification 

Pin No. 

Signal Name 

Assignment(Color)

Function 

Shell Shield  Drain 

Wire 

Frame 

Ground 

1 

VBUS 

Red 

Host Power : DC5[V] / 500[mA] 

2 D- 

White 

Differential 

Data 

Line 

3 D+ 

Green 

Differential 

Data 

Line 

4 GND 

Black 

Signal 

Ground 

Table 3-19 USB Pin Description 

 
 
3-5-3(c) Cable 
USB cable consists of four conductors, two power conductors, and two signal conductors.   
High-/full-speed cable consists of a signaling twisted pair, VBUS, GND, and an overall shield. High-/full 
speed cable must be marked to indicate suitability for USB usage. High-/full-speed cable may be used with 
either low-speed, full-speed, or high-speed devices. When high-/full-speed cable used with low-speed 
devices, the cable must meet all low-speed requirements.   
Low-speed recommends, but does not require the use of a cable with twisted signaling conductors.