SRP-270

3-5-4 USB2.0 Interface

SRP-270 support the USB (Universal Serial Bus) Serial Communication.

3-5-4(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 3-20 USB Specification

3-5-4(b) Signal Description

 

 

 

 

 

 

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 3-21 USB Pin Description

3-5-4(c) USB I/F Cable

Figure 3-10 USB A-B Type Cable

Rev. 3.02

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Page 27
Image 27
BIXOLON SRP-270 service manual 4 USB2.0 Interface, 4a Specification, 4b Signal Description, 4c USB I/F Cable