Black Box IC244A-R2 Manual De Usuario

 

 

USB cables have two distinct connectors. The Type A connector is used to 
connect the cable from a USB device to the Type A port on a computer or 
hub. The Type B connector is used to attach the USB cable to a USB device. 

USB Type A 

port 

 

USB Type A 

connector 

USB Type B 

port 

USB Type B 

connector 

 

Some USB devices are powered directly from the USB and do not require 
individual power supplies. These devices are called bus-powered devices. 
The USB-CAT5 Extender can provide power to these devices so they can be 
operated remotely.  

Bus-powered devices are further divided into low-power and high-power 
categories. Low-power devices are allowed to draw up to 100 mA from the 
USB. Typical examples include mice, joysticks, and keyboards without 
hubs. High-power devices are allowed to draw up to 500 mA from the USB. 
Typical examples include cameras and keyboards with hubs. To determine if 
a device is high-power or low-power, consult the user documentation for the 
device.  

The USB-CAT5 Extender can supply sufficient power to support all low-
power devices and most high-power devices. Devices that place a very heavy 
power drain on USB (>300 mA) are not supported. Most USB devices 
operate well within this power budget. 

Devices with their own power source are usually considered to be low-power devices from a USB 
perspective and are thereby compatible with the USB-CAT5 Extender. 

The USB-CAT5 Extender complies with USB 1.1 specifications governing 
the design of full-speed and low-speed USB devices. However, Black Box 
does not guarantee that all USB 1.1 devices are compatible with the USB-
CAT5 Extender. 

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