Radio Shack 26-191 User's Manual

Radio Shack Computer Drive User's Manual - 26-191.
Download
Page  of 2
4.1, 1388 votes
background image

© 2001 RadioShack Corporation.

All Rights Reserved.

RadioShack and RadioShack.com are trademarks used by RadioShack Corporation.

OWNER’S MANUAL — Please read before using this equipment.

4-Port USB 

Your RadioShack 4-Port USB Hub is a full-speed Universal Serial Bus 
(USB) hub. It supports one upstream and four downstream ports. With 
its 12 Mbps speed, the USB hub can consolidate a full range of low-
speed and high-speed peripherals to provide desktop and notebook 
computer connectivity. It complies fully with the USB specification Rev 
1.1 and HID Class Definition Rev 1.0.

The USB hub is designed for use with an iMac or PC (with Windows 
98 or higher) that has a USB host controller installed on the computer.

Tiered Star Topology — supports up to 127 physical devices. 
Connected devices can be of either low speed (1.5 Mbps) or full speed 
(12 Mbps).

Power Options — operates on its own power (with low-power 
consumption devices) or bus power.

Over-Current Protection — protects device connected to each 
downstream port when current exceeds 500 mA in self powered mode.

Auto-Detect Speeds and Device Connections — let you use the 
USB hub with a wide array of devices.

Bus Fault Detection and Recovery — overcurrent protection 
automatically turns power off in cases of excessive current. The USB 
hub is automatically reset when it recognizes an attached device or is 
prompted by a reconfiguration program.

System Requirements:

• Windows 98SE/ME/2000/XP or Mac OS 8.6 or higher

• Pentium 233 MMX or higher PC or notebook, or Mac with one 

available USB port

• At least 64 MB RAM

FCC DECLARATION OF CONFORMITY

This device complies with Part 15 of the FCC Rules. Operation is 
subject to the following two conditions: (1) this device may not cause 
harmful interference, and (2) this device must accept any interference 
received, including interference that may cause undesired operation.

THE FCC WANTS YOU TO KNOW

This equipment has been tested and found to comply with the limits for 
a Class B 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 energy and, if not installed and 
used in accordance with 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 can be determined 
by turning the equipment off and on, the user is encouraged to try to 
correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver. 

• Connect the equipment into an outlet on a circuit different from 

that to which the receiver is connected. 

• Consult your local RadioShack store or an experienced radio/TV 

technician for help.

• If you cannot eliminate the interference, the FCC requires that you 

stop using your USB hub. 

Changes or modifications not expressly approved by RadioShack may 
cause interference and void the user’s authority to operate the 
equipment.

INSTALLATION

Use the supplied 5-volt DC, 2.5-Amp AC adapter to power the USB 
hub.

Cautions:

• You must use a Class 2 power source that supplies 5 volts DC 

and delivers at least 2.5 Amps. Its center tip must be set to 
positive and its plug must fit the USB hub's 5VDC 2.5A jack. The 
supplied adapter meets these specifications. Using an adapter 
that does not meet these specifications could damage the USB 
hub or the adapter.

• Always connect the AC adapter to the USB hub before you 

connect it to AC power. When you finish, disconnect the adapter 
from AC power before you disconnect it from the USB hub.

1. Plug the supplied AC adapter's barrel plug into the 5VDC 2.5A jack

on the rear of the USB hub.

2. Plug the larger end of the AC adapter into a standard AC outlet.

3. Plug the supplied USB cable's B-type connector into the HOST

port on the rear of the USB hub.

4. Plug the supplied USB cable's A-type connector into the PC's host

port.

5. Connect up to four USB devices to the ports on the front of the

USB hub. The green indicators on the USB’s front panel light if the
corresponding USB ports are ready for use.

Warnings: 

• If the AC adapter is disconnected from the AC outlet during 

operation or the USB device draws too much current or shorts, the 
affected port’s light goes out, and Windows sends you a “USB 
Hub Current Limit Exceeded” message. To reset the port, unplug 
the device from the affected port and click Reset on the error 

Product: 4-Port USB Hub

Model: 26-191

Responsible Party: RadioShack

100 Throckmorton
Fort Worth, TX 76102

Phone: 817-415-3200

Related Manuals for Radio Shack 26-191

0.540897s