USB - Universal Serial Bus


USB A 4 Pin Male Connecteur male type "A" du cable

USB A 4 Pin Female Connecteur femelle type "A" du PC

USB B 4 Pin Male Connector Connecteur male type "B" du cable

USB B 4 Pin Female Connector Connecteur femelle type "B" du périphérique

Pin Name Description Color
1 VCC +5 VDC Red
2 D- Data - White
3 D+ Data + Green
4 GND Ground Black

Features:

Uses:

Bandwidth:

Definitions:

USB Host = The computer, only one host per USB system.
USB Device = A hub or a Function.

Power usage:

Bus-powered hubs: Draw Max 100 mA at power up and 500 mA normally.
Self-powered hubs: Draw Max 100 mA, must supply 500 mA to each port.
Low power, bus-powered functions: Draw Max 100 mA.
High power, bus-powered functions: Self-powered hubs: Draw Max 100 mA, must supply 500 mA to each port.
Self-powered functions: Draw Max 100 mA.
Suspended device: Max 0.5 mA

Voltage:

Shielding:

Shield should only be connected to Ground at the host. No device should connect Shield to Ground.

Cable:

Shielded:
Data: 28 AWG twisted
Power: 28 AWG - 20 AWG non-twisted

Non-shielded:
Data: 28 AWG non-twisted
Power: 28 AWG - 20 AWG non-twisted

Power Gauge Max length
28 0.81 m
26 1.31 m
24 2.08 m
22 3.33 m
20 5.00 m

Cable colors:

Pin Name Cable color Description
1 VCC Red +5 VDC
2 D- White Data -
3 D+ Green Data +
4 GND Black Ground