Black Box IC147A User manual

USB 2.0
(4-Port) Hub
April 2002
IC147A
IC147AE
CUSTOMER SUPPORT INFORMATION
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
REE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mailing address: Bla k Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.bla kbox. om • E-mail: info@bla kbox. om

FEDERAL COMMUNICATIONS COMMISSION
and INDUSTRY CANADA
RADIO FREQUENCY INTERFERENCE STATEMENTS
Class B Digital Device. This equipment has been tested and found to comply with the limits for
a Class B computing device pursuant to Part 15 of the CC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation. However,
there is no guarantee that interference will not occur in a particular installation. This equipment
generates, uses, and can radiate radio frequency energy, and, if not installed and used in accor-
dance with the instructions, may cause harmful interference to radio communications. If this
equipment does cause harmful interference to radio or telephone reception, which can be deter-
mined by turning the equipment off and on, the user is encouraged to try to correct the interfer-
ence by one 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 an experienced radio/TV technician for help.
Caution:
Changes or modifi ations not expressly approved by the party responsible for
omplian e ould void the user’s authority to operate the equipment.

To meet FCC requirements, shielded cables and power cords are required to connect
this device to a personal computer or other Class B certified device.
This digital apparatus does not exceed the Class B limits for radio noise emission from digital
apparatus set out in the Radio Interference Regulation of Industry Canada.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de classe B prescrites dans le R glement sur le brouillage
radioélectrique publié par Industrie Canada.
NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT
INSTRUCCIONES DE SEGURIDAD
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el
aparato eléctrico sea operado.
2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben
ser respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de
baño, lavabo, sótano mojado o cerca de una alberca, etc..

6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean
recomendados por el fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado
por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo
descrito en las instrucciones de operación. Todo otro servicio deberá ser referido a per-
sonal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso.
La colocación del aparato eléctrico sobre una cama, sofá, alfombra o superficie similar
puede bloquea la ventilación, no se debe colocar en libreros o gabinetes que impidan el
flujo de aire por los orificios de ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radi-
adores, registros de calor, estufas u otros aparatos (incluyendo amplificadores) que pro-
ducen calor.
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en
el instructivo de operación, o como se indique en el aparato.
12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo
no sea eliminada.
13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni
pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los
contactos y receptáculos donde salen del aparato.
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del
fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.

16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un
largo periodo de tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre
la cubierta u orificios de ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio en su desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.

Trademarks
Mac is a registered trademark of Apple Computer, Inc.
PS/2 is a registered trademark of International Business Machines Corporation.
Windows is a registered trademark of Microsoft Corporation.
Any other trademarks mentioned in this manual are acknowledged to be the property of the
trademark owners.

Spe ifi ations
Complian e: CC Class B, Part 15
Ports: Root (Upstream): 1; Downstream: 4
Indi ators: (5) LEDs: (1) Power, (4) Ports
Output Voltage (per port): +5 VDC
Output Current (per port): 500 mA (maximum)
Temperature Toleran e: Operating: 41 to 104° (5 to 40°C);
Storage: -4 to +140° (-20 to +60°C)
Humidity Toleran e: Up to 80%, noncondensing
Housing: Plastic
Power: External power supply; IC147A: Input: 100–120 VAC, 0.4 amps, 47–63 Hz;
Output: 5 VDC, 2.6 amps; IC147AE: Input: 100–240 VAC, 1 amp, 47–63 Hz; Output: 5 VDC
Size: 0.9"H x 2.5"W x 3.7"D (2.3 x 6.4 x 9.4 cm)
Weight: 0.17 lb. (80 g)

Introdu tion
Overview
Universal Serial Bus (USB) port technology has emerged in response to the increasing number
of external peripheral devices (printers, scanners, modems, digital cameras, removable drives,
etc.) that are increasingly being connected to the latest generation of computers. The USB
behaves in a similar fashion to conventional bus ports (that is, serial, parallel, PS/2®); however,
since it does not require any IRQs, more devices can be attached to the system and the problem
of IRQ conflict is eliminated.
Since many older computers don’t have USB connectors onboard and most newer computers
come with only one or two USB ports, USB hubs are used to connect all the USB peripherals
that you may want to use.
The USB 2.0 (4-Port) Hub complies with the USB 2.0 standard. This represents the second USB
generation and provides transfer rates of up to 480 Mbps. It is faster, more efficient, and more
capable than its predecessor, USB 1.1; luckily, it is fully backward compatible, so your prior
investment in USB 1.1 peripherals is not lost.
The USB 2.0 (4-Port) Hub provides one upstream port and four downstream ports. LED indica-
tors display information about the power status of each port. The hub supports high-speed
(480-Mbps), full-speed (12-Mbps), and low-speed (1.5-Mbps) devices, and it can be daisy-
chained to provide as many ports as you require.
When you purchased the USB 2.0 (4-Port) Hub, you should have received:
• The USB 2.0 (4-Port) Hub,
• (1) 3-ft. (0.9-m) USB 2.0 cable,
• A power adapter, and
• This user’s manual.

Features
• ully compliant with the USB 2.0 specification.
• Backward compatible with USB 1.1.
• Supports transfer rates of 1.5, 12, and 480 Mbps.
• our independent, fully functional, 480-Mbps downstream ports.
• Per-port overcurrent protection.
• Per-port bus status LED indicators.
System Requirements
• One of the following operating systems: Windows XP; Windows®2000; Windows Me;
Win98 SE; Mac®OS 8.6 or higher.
• USB 2.0 Host Controller, installed on the computer.
NOTE
Only systems with a USB 2.0 driver installed can support data transfer speeds of up to
480 Mbps.
NOTE
The USB 2.0 (4-Port) Hub can be connected to a USB 1.1 Host Controller; however, it will only
support USB 1.1 speeds (1.5 or 12 Mbps).

Installation
1. Plug the supplied power adapter into an AC source. Plug the power adapter
cable into the hub’s power jack.
2. Plug the USB cable’s B connector end into the root (upstream) port located
on the hub’s side panel. (See the illustration.)
3. Plug the USB cable’s A connector end into your computer system’s USB host controller port.
4. To connect up to four peripherals, use additional USB cables. Plug each cable’s A connector
end into the downsteam ports on the hub. Plug the cables’ B connectors into the peripherals.
A connector B connector
A connector
from peripheral
Power adapter

Operation
Numbers 1 through 4 below and on the next page correspond to the numbers on the diagram
above.
1. Power LED: Lights when the unit is receiving power from the power source at the correct
current level.
2. Port LEDs:
• A Port LED lights (green) when the downstream peripheral device connected to the
corresponding port is receiving power at the correct current level.
1
2
3
4

• If an overcurrent condition between the hub and the downstream device occurs, the
LED turns amber.
3. Power Jack: The power adapter cable plugs in here.
4. Root (Upstream) Port: The cable that connects the hub to the computer’s USB controller
plugs in here.
Downstream ports (1–4): Cables from USB peripherals can plug into any available
downstream port.
Downstream
ports

Troubleshooting
If the hub operates erratically, the problem may be caused by static electricity. Reset the unit by
unplugging the upstream cable from the computer’s USB port and then reinserting it. If you have
daisychained hubs, do this on the hub that connects directly to the computer.
Calling Black Box
If you determine that your USB 2.0 (4-Port) Hub is malfunctioning, do not attempt to alter or
repair it. Contact Black Box at 724-746-5500. The problem might be solvable over the phone.
Before you do, make a record of the history of the problem. We will be able to provide more effi-
cient and accurate assistance if you have a complete description, including:
• The nature and duration of the problem.
• When the problem occurs.
• The components involved in the problem.
• Any particular application that, when used, appears to create the problem or make it worse.
Shipping and ackaging
If you need to transport or ship your USB 2.0 (4-Port) Hub:
• Package it carefully. We recommend that you use the original container.
• If you are shipping the USB 2.0 (4-Port) Hub for repair, make sure you include everything that
came in the original package. Before you ship, contact Black Box to get a Return Authorization
(RA) number.

© Copyright 2002. Black Box Corporation. All rights reserved.
1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax [phone]