Conrad 97 52 42 Bedienungsanleitung Seite 2

O P E R A T I N G I N S T R U C T I O N S
4-Port USB2.0 Hub
Item-No. 97 52 42
Use in accordance with manufacturer's instructions
The product is designed for connection to a computer with a USB interface in order to provide
additional USB ports.
This product complies with the applicable National and European requirements. All names of
companies and products are the trademarks of the respective owner. All rights reserved.
Package Contents
• USB hub
• USB cable
• Operating Instructions
Safety Instructions
The warranty will be void in the event of damage caused by failure to observe
these safety instructions! We do not assume any liability for any consequen-
tial damage!
We do not assume any liability for material and personal damage caused by
improper use or non-compliance with the safety instructions. The warranty
will be null and void in such cases.
• The unauthorised conversion and/or modification of the product is inadmissible
because of safety and approval reasons (CE). Never dismantle the product!
• This product is not a toy, and should be kept out of the reach of children.
• Only use in dry indoor locations. The product must not get damp or wet.
• Do not expose the product to extreme temperatures, direct intense sunlight, strong
vibrations, high humidity or strong mechanical stress.
• Do not leave packaging material lying around carelessly. It may become a dange-
rous plaything for children.
• Handle the product with care, it can be damaged by impacts, blows, or accidental
drops, even from a low height.
Connection
• Connect the USB hub, via the USB cable, to a free USB2.0 port on your computer (the com-
puter does not need to be switched off). The power LED on the USB hub lights up.
If you do not have a USB2.0 interface on your computer (e.g. on the motherboard or
on a USB2.0 expansion card), you can also connect the USB hub to a USB1.1 port.
However, the devices connected to the USB hub (no matter whether USB2.0 or
USB.1.1) will only work at the normal USB1.1 speed!
When connected to a USB3.0 port, the USB hub functions in the USB2.0 mode.
• Windows recognises the new hardware and installs the driver automatically (they are included
in the operating system, e.g. Windows XP and higher).
Operation
The USB hub functions in the so-called "Bus Powered Mode". This means that the current (up
to 500 mA), supplied from the computer via the USB, is distributed to the 4 ports.
This is sufficient for most mice, keyboards, USB sticks and the like.
However, USB devices with a high power consumption (e.g. external hard drive
enclosures with 6.35cm/2,5" hard drives, USB fans or similar) cannot be operated
with it. Connect such devices directly to a free USB port on your computer.
Connecting an external power unit
The USB hub has a low-voltage jack which can be connected to an external power supply unit
(not included in the delivery, can be ordered separately). The USB hub functions in the so-called
"Self-Powered" mode and supplies all of its 4 ports with a current of up to 500mA.
The external power supply unit must have a stabilised output voltage of 5V DC and supply a cur-
rent of 2A (inner contact = plus/+, outer contact = minus/-/GND).
Tips & Notes
www.conrad.com
• The USB2.0 hub is USB1.1 compatible. This means that normal USB1.1 devices can be used
with no problems on the USB2.0 Hub. However, this will not speed up the USB1.1 devices!
Version 10/10
Of course, the USB2.0 hub can also be used with a USB1.1 connection, e.g. where your com-
°
puter does not have a USB2.0 interface.
In this case, an increase in the data transmission speed is also not possible.
• A connection to a USB3.0 port will not increase the speed; here the USB hub (and all con-
nected devices) will function in USB2.0 mode.
• To take advantage of the high speed of USB2.0 (theoretically 480 Mbit/s, i.e. 60 MByte/s), all
devices have to support USB2.0: The USB device itself (e.g. an external DVD writer), the USB
hub and the USB controller inside the PC.
The theoretical maximum speed of 480 Mbit/s is never achieved in practice. This is due to pro-
tocol information, simultaneous operation of several USB devices or the speed limit of the con-
nected device, the USB controllers on the motherboard or plug-in card.
• Correct USB2.0 operation does not require a special "USB2.0 cable". Conventional USB
cables are quite sufficient, but they need to be shielded.
If you should notice transmission problems when operating USB2.0 devices, you can try a USB
cable which has been tested for USB2.0 operation ("USB2.0 certified") or a shorter USB cable.
• Normally, USB operation is not possible in DOS or if Windows is started in safe mode.
Nevertheless, depending on the computer or BIOS /Setup settings, it possible to use a USB
keyboard and a USB mouse. It is necessary, however, to connect them directly to the compu-
ter's USB interface, i.e. not to the USB Hub.
• USB devices can be plugged in and unplugged while the PC is in use. This means that you do
not have to switch off your computer, when you want to plug in or unplug devices (with other
interfaces this can cause damage, e.g. if you connect or disconnect a PS/2 mouse during ope-
ration).
However, if data transfers are in progress on the USB port, e.g. if an external disk is inputting
data to the computer, and you unplug the USB plug, the operating system might crash and
other data may also be damaged!
For some USB2.0 devices (e.g. USB hard drives) Windows XP, Windows Vista or Windows 7
displays an icon with an arrow in the menu bar. You can "safely remove" the USB device from
the computer using this function, and thus instruct the computer to close opened files.
Afterwards, the USB device can be unplugged safely.
Disposal
Technical Data
USB Ports:............................................4
USB speed: ..........................................USB2.0 (USB1.1 compatible)
Dimensions (L x W x H): ......................Approx. 48.5 x 48.5 x 12.5mm
Weight: ................................................Approx. 26g (without cable)
© Copyright 2010 by Conrad Electronic SE.
Please dispose of the product, when it is no longer of use, according to the current
statutory requirements.
These operating instructions are a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240
Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or
the capture in electronic data processing systems require the prior written approval by the editor.
Reprinting, also in part, is prohibited.
These operating instructions represent the technical status at the time of printing. Changes in
technology and equipment reserved.