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USB HUB User's Manual 

1.0 Introduction 

UHB 4200 is designed in accordance to USB specification Rev 1.1/2.0 which act as a bridge 

between the main computer host and the down stream USB devices. It is able to complement 

PC serial interface by connecting a full range of peripherals, which is very simple and flexible 

for the users. 

 

There is one upstream port that connects to the PC host and there are four down steam ports 

connecting up to 127 USB devices in a tiered-star configuration. UHB 4200 supports both full 

speed (480M bps) and low speed (1.5M bps) devices which include keyboards, mice, scanner. 

 

It is also protected by automatic per-port over-current detection and recovery and the LED 

indicating the connection status and power source. 

 

2.0 Features 

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Full compliance with USB specification Rev. 1.1. 

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With one up-stream port and four down-stream ports. 

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Connects up to 127 devices in a tiered star configuration. 

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Supports both full-speed (12M bps) and low-speed (1.5M bps) devices. 

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Select between self-powered mode and bus-powered mode automatically. 

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Per port over current detection/protection and power switch control

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LED for bus-power, self-power and four down-stream connection status. 

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3.0 Specifications 

-Upstream port 

 

 

-Downstream port   

 

-LED: 

 

 

 

 

1 for BUS Power status and 1 for Self Power status 

-Enclosure: 

 

 

 

Plastic 

-Per port Output current:  

500mA 

-Operating temperature:   

0 degrees to 40 degrees 

-Storage temperature: 

 

-20 degrees to 60 degrees 

-Humidity: 

 

 

 

0% ~ 80% RH 

 

4.0 Installation 

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