Linksys ProConnect Series User Manual

COPYRIGHT & TRADEMARKS  
ProConnect Series  
Copyright © 1999 Linksys, All Rights Reserved. ProConnect is a  
registered trademark of Linksys. Microsoft, Windows, and the  
Windows logo are registered trademarks of Microsoft Corporation.  
All other trademarks and brand names are the property of their  
respective proprietors.  
USB 4-Port  
Hub  
LIMITED WARRANTY  
Linksys guarantees that every USB 4-Port Hub is free from physi-  
cal defects in material and workmanship under normal use for  
One (1) year from the date of purchase. If the product proves  
defective during this warranty period, call Linksys Customer  
Support in order to obtain a Return Authorization number.  
Warranty is for repair or replacement only. Linksys does not issue  
refunds. BE SURE TO HAVE YOUR PROOF OF PURCHASE AND  
BAR CODE ON HAND WHEN CALLING. RETURN REQUESTS  
CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE  
AND BAR CODE. When returning a product, mark the Return  
Authorization number clearly on the outside of the package and  
include your original proof of purchase and bar code.  
IN NO EVENT SHALL LINKSYS’ LIABILITY EXCEED THE PRICE  
PAID FOR THE PRODUCT FROM DIRECT, INDIRECT, SPECIAL,  
INCIDENTAL, OR CONSEQUENTIAL DAMAGES RESULTING  
FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING  
SOFTWARE, OR ITS DOCUMENTATION. Linksys makes no war-  
ranty or representation, expressed, implied, or statutory, with  
respect to its products or the contents or use of this documenta-  
tion and all accompanying software, and specifically disclaims its  
quality, performance, merchantability, or fitness for any particular  
purpose. Linksys reserves the right to revise or update its prod-  
ucts, software, or documentation without obligation to notify any  
individual or entity. Please direct all inquiries to:  
Linksys P.O. Box 18558, Irvine, CA 92623.  
FCC STATEMENT  
Us e this guide to ins tall this  
Links ys product:  
This equipment has been tested and found to comply with the lim-  
its for a Class A digital device, pursuant to Part 15 of the FCC  
Rules. These limits are designed to provide reasonable protection  
against harmful interference in a residential installation. This  
equipment generates, uses, and can radiate radio frequency ener-  
gy and, if not installed and used according to the instructions, may  
cause harmful interference to radio communications. However,  
there is no guarantee that interference will not occur in a particular  
installation. If this equipment does cause harmful interference to  
radio or television reception, which is found by turning the equip-  
ment off and on, the user is encouraged to try to correct the inter-  
ference by one or more of the following measures:  
USBHUB04  
USB 4-Port Hub  
• Reorient or relocate the receiving antenna  
• Increase the separation between the equipment or device  
• Connect the equipment to an outlet other than the receiver’s  
• Consult a dealer or an experienced radio/TV technician for  
assistance  
Us e r Guide  
902  
Rugged and ready for the road, the USB 4-Port  
Hub is conveniently portable, since it draws its  
power from from your computers USB port.  
Got a notebook PC? No problem -- just plug in  
the provided AC power supply to help preserve  
your computers battery life.  
Introduction  
Congratulations on your purchase of the USB 4-  
Port Hub from Linksys -- the fastest way to con-  
nect Universal Serial Bus devices to your PC or  
Macintosh. Plug a mouse or printer into your  
desktop. Attach a full-sized keyboard to your note-  
book. Hook up a scanner or digital camera in sec-  
onds. If your PC is equipped with a USB port, the  
USB 4-Port Hub makes connecting multiple USB  
devices to it a snap!  
As your needs grow, you can daisy-chain the  
USB 4-Port Hub to additional USB hubs --if  
your needs call for it, you can actually use up to  
127 USB devices at the same time! Adding  
devices to your computer has never been easier!  
Ready to run right out of the box, the USB 4-Port  
Hub lets you access up to four USB devices  
simultaneously from your computers USB port,  
allowing you to take advantage of the latest high-  
speed, low-cost USB modems, keyboards, scan-  
ners, cameras, speakers, and more -- all in one  
easy step. Optimized for Windows 95 and  
Windows 98, the USB 4-Port Hub is plug-and-  
play compatible, which means USB devices are  
configured and ready for use as soon as you plug  
them in.  
Some of the hub’s features include:  
• Access Up to 4 Universal Serial Bus Devices  
Simultaneously from a Computers USB Port  
• Offers Simultaneous Access to All Devices --  
Print, Scan, Web Surf, and More at the Same  
Time  
• Fast 12Mbps Data Transfer Rate -- Perfect for  
High-Speed Scanners, Video, Printers, and  
More  
Equipped with advanced hotswap technology, the  
hub even lets you attach or detach USB devices  
while your computer is on, making it possible to  
switch devices on the fly!  
• Daisy-Chain Multiple USB Hubs Together for  
Easy Future Expansion  
• Plug-and-Play Compatible with Windows 95,  
Windows 98, and MacOS for a Quick Setup  
The 4-Port hub offers blazing access rates of up to  
12 million bits per second -- the fastest in the  
industry -- which makes it perfect for speed-hun-  
gry devices like USB cameras and scanners.  
• Fully Hotswappable --Attach or Detach  
Devices with Power On  
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• Built-in Data Collision Control -- Protects Data  
Integrity when Using Multiple Devices  
access to an enormous array of different devices at  
the same time.  
• Runs in Both Bus and Self-Powered Modes  
Some of the devices that the USB 4-Port Hub sup-  
ports include digital cameras and scanners, joy-  
sticks, gamepads, virtual reality headgear and  
gloves, keyboards, hard drives, mice, modems,  
printers, speakers, and more.  
About USB  
USB, which is short for Universal Serial Bus, is a  
technology designed to make connecting devices  
to computers easier. Originally developed in 1996  
by a group of computer industry leaders that  
included Compaq, Digital, IBM, Intel, Microsoft,  
NEC, and Northern Telecom, USB is quickly  
becoming the first choice for users who want to  
add peripherals to their computers.  
USB is unique because it is plug-and-play, which  
allows a computer to instantly recognize when a  
device like a keyboard, mouse, or scanner has  
been connected to it. Once the device has been  
recognized, its ready to go -- no special setup is  
required. Similarly, USB supports hot-swapping --  
the insertion or removal of devices while the com-  
puter is turned on. You can swap one device for  
another without having to power down your sys-  
tem or install any special software -- it really is  
that easy.  
Another unique USB feature is its ability to allow  
multiple devices to be connected to a computers  
single USB port. The USB 4-Port Hub, for exam-  
ple, splits a computers USB port into four USB  
ports. All four ports can operate simultaneously  
and independent of each other, allowing easy  
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5
should plug the AC adapter into your hub.  
Hardware S e tup  
If you decide to use the AC adapter, plug it into  
the hubs AC power adapter receptacle located on  
the rear of the hub now.  
Before installing the hub, make sure you have  
received all of the following items. If any of the  
items are damaged or missing, contact your ven-  
dor for replacements:  
Step 2  
• USB 4-Port Hub  
• AC Power Adapter  
• 6’ USB Cable  
• Plug your computer into the hub.  
The USB 4-Port Hub came with a USB cable. One  
end of the cable has a rectangular plug, which is  
called an A-type connector. The other end of the  
cable has a square shaped plug, or B-type connec-  
tor.  
After unpacking the hub, follow the steps below to  
complete the installation.  
Step 1  
Insert the cables square B-type plug into the hubs  
Root Port, which is located on the rear of the hub.  
• Plug in the AC power adapter (optional).  
The USB 4-Port Hub can run with or without its  
AC power adapter. If you decide not to use the  
adapter, the hub will draw its power supply from  
your computers USB port.  
If you have a notebook computer, or if you have  
lots of devices connected to your computer, you  
might want to use the AC power supply -- it can  
help boost signal strength between a PC and its  
devices, and if you have a notebook, it will help  
preserve your computers battery life.  
Insert the other end of the cable (the A-type plug)  
into your computers USB port. The computer is  
now connected to the hub.  
Some USB devices require more power than the  
hub can supply in self-powered mode. If you plug  
a device into your hub and it doesn’t work proper-  
ly, it may need more power. In this case, you  
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Step 3  
LED Indicators  
• Plug your USB device(s) into the hub.  
While you are using your USB 4-Port Hub, one of  
the two power LEDs will be lit. Depending on  
whether or not you have chosen to use your hubs  
AC power adapter, you will see one of the follow-  
ing light up.  
The front of the USB hub has four rectangular A-  
type ports where you can plug in USB devices. To  
plug in a USB mouse, keyboard, or other device,  
simply plug its A-type cable into any of the hubs  
four A-type ports. The installation is complete!  
Bus Powered Indicates that the USB Hub is in  
operation and is drawing power  
from your PC.  
Self Powered Indicates that the USB Hubs  
AC power adapter is connected  
and is feeding power to the Hub  
and all devices connected to it.  
If the self powered LED is ON,  
the hub is not drawing power  
from your PC.  
To PC  
Using the Hub with USB Devices  
Using the USB 4-Port Hub with a USB device is  
easy -- after plugging in the device, just turn it on.  
Your Windows 95 (revision OSR2 and above),  
Windows 98, or MacOS computer should auto-  
matically detect it. USB technology specifically  
allows devices to be inserted or removed while  
your PCs power is on -- its true plug-and-play!  
There are also 4 port-specific LEDs on the hub.  
Each LED will light up if the port below it is  
active and has a device attached to it.  
Note: Your operating system must have USB sup-  
port in order for you to utilize the USB 4-Port  
Hub. For instance, some earlier versions of  
Windows 95 do not support USB. If you are not  
sure whether or not USB is supported by your  
operating system, consult the documentation that  
came with the operating system.  
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Troubleshooting  
S pe cifications  
1. I plugged a device or other hub into my hub  
and it doesn’t work.  
Standard  
OHCI, UHIC, and USB  
Standard v1.0  
First, verify that all of your cabling is connected  
properly. See page 6 for help. Next, verify that  
you are using an operating system that supports  
USB. Some versions of Windows 95, Windows  
NT and a number of Unix-based operating sys-  
tems do not support USB.  
Ports  
1 Root Port; 4 Device Ports  
Speed  
12Mbps (High Speed)  
1.5Mbps (Low Speed)  
Depending on Device  
Requirements  
Some devices require more power than the hub  
can supply in bus-powered mode. If a device does-  
n’t work and you hub is in bus-powered mode,  
plug in the AC adapter.  
Data Modes  
Isochronous and Asynchronous  
Max Devices 127 (when multiple hubs are  
daisy-chained together)  
If you are connecting a device into your hub via a  
serial-to-USB or parallel-to-USB converter, make  
sure that the device does not require any more  
than 500mA of power. 500mA is the maximum  
amount of power that a USB port can supply. Any  
device that needs more than 500mA of power can-  
not be accessed through a USB port.  
LEDs  
Bus Power, Self Power,  
Activity per port  
Power  
DC6V, 2.6A  
Current  
500mA per port (maximum)  
5°C - 40°C for Safe Operation  
0% - 80% for Safe Operation  
4.0" x 3.75" x 1.0"  
Temperature  
Humidity  
Dimensions  
Weight  
2. The computer doesn’t recognize the hub or any  
other USB device.  
The operating system has to support USB.  
Windows 95 OSR2, Windows 98, and MacOS 8.1  
or higher support USB.  
3.7 oz.  
Also, the USB ports on your PC may be disabled  
in the BIOS. Use the BIOS menu to enable them.  
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Customer Support  
For help with the installation or operation of your  
USB 4-Port Hub, contact Linksys Customer  
Support at one of the phone numbers or Internet  
addresses below.  
Customer Support  
Fax  
Bulletin Board  
949-261-1288  
949-261-8868  
949-261-2888  
(33.6K, 8-N-1)  
Email  
Web  
FTP Site  
ftp.linksys.com  
© Copyright 1999 Linksys, All Rights Reserved.  
Printed in the USA.  
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