Abocom Switch UH400C User Manual

UH400C  
USB HUB (4 ports)  
GENERAL  
SPECIFICATION  
Ports:  
4 downstream ports with USB type A receptacles  
1 upstream port with USB type B receptacle  
The USB HUB is a 4-ports device used to bridge the  
USB interfaced peripherals to your desktop computers  
or notebook computers by providing one upstream  
connector and four downstream ports. The UH400C  
complies with USB Specification Ver. 1.1. It offers you  
the flexibility of two data rates. The 12Mbps for devices  
that require increasing bandwidth and 1.5Mbps for  
low-speed device like game pads and joysticks. Every  
single one port of the hub allows to "daisychain" multi  
devices together. Compact, light-weighted and requiring  
no external power, this UH400C is the ideal company  
you can ever find on the road.  
User LED Indicators:  
Bus-powered - green LED  
Self-powered - orange LED  
4 LEDs indicate presence of individual port power  
- green LEDs  
Environmental:  
Operating temperature:0 C to 70 C  
Storage temperature:-20 C to 80 C  
Humidity: 0 to 95%, non-condensing  
FEATURES  
Universal Serial Bus Rev. 1.1 Specification compatibility  
Plug and Play with USB devices  
Power:  
Easy to add peripherals; allows up to 127 USB devices  
Per-port power overcurrent detection and protection for  
downstream ports  
Bus-powered mode: Bus Powered from USB  
host controller with each port of DC+5V,  
100mA supply.  
All Downstream ports support full-speed (12Mbps) and  
low-speed (1.5Mbps) operations  
Auto-switching between Bus-power mode and Self-  
power mode, indicated by LED.  
Self-powered mode: Plug mounted A/C adapter  
with regulated DC 5V, 2.4A with each downstream  
port of DC +5V, 500mA (Max.) supply  
Supports Suspend and Resume Operations.  
Supports 1 upstream and 4 downstream USB ports.  
6 LED indicators for hub status at a glance  
Certifications:  
FCC Class B ,CE  
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