Accton Technology USB204A Manuale utente

USB Hub

Quick Installation Guide

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USB Hub

Introduction

Acctons USB204A offers a convenient and cost-effective

means of bringing Universal Serial Bus (USB) connectivity to

the desktop. Acctons Universal Serial Bus products feature

true plug-and-play connection of PC peripherals "outside the

box" and mark a significant advance in desktop cable

management. These state-of-the-art, practical products

provide ease-of-use benefits to PC users in the home, office,

and on the road.

The USB204A provides 4 downstream ports, for connection to

USB-equipped peripherals (including other hubs), and 1

upstream port for connection to your PC's USB port, or to

another USB204A. The hub features a compact case with

EZ-mount bracket for upright, flat, wall, or under-desk

mounting. Five USB hubs can be daisy-chained together in

series, supporting any combination of devices up to a

maximum of 127 (including the hubs).

The components of the USB204A are shown in the figure

below:

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Quick Installation Guide

Check the Package

The USB204A includes:

1 USB204A 2-meter shielded USB cable

1 hub stand 1 power adapter

1 user guide 1 registration card (please return)

System Requirements

The USB204A requires the following basic host PC features to

operate:

 A host PC that supports the Universal Serial Bus (USB)

 A PC operating system with a generic USB hub driver,

including Microsoft Windows 95 (OSR2.1 or later), 98, 2000

Mount the Hub

The USB204A with its flexible stand can be mounted on any

flat or vertical surface.

To mount the hub on a flat surface:

1Slide the stand onto the hub base (to

stand upright) or back (to lay flat).

2Place the hub on any convenient

flat surface, such as a desktop or

nearby shelf.

To mount the hub on a vertical surface:

1First secure the stand to

the desired location, such

as a wall or side of desk.

You may use two small

screws, Velcro strips, or

any other technique.

2With the stand secured, slide the hubs back onto the stand.

Hub Operation

The USB204A is a device used to extend the host PC USB

interface. The hub supplies 4 additional USB ports to attach to

devices or other hubs.

The host PC has the ability turn on or off any hub, individual

port, or a device attached to a port. The USB204A also

supports the energy-saving suspend, resume and remote

wake-on-ring functions. Whats more, the Hub and each

downstream port are overcurrent and short-circuit protected.

Please note the following general points about USB hub

operation:

 Hubs and devices are hot pluggable and can be connected/

disconnected at any time, even while the host PC is

powered on.

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USB Hub

 Hubs can be daisy-chained up to 5 deep in series, or in any

combination that does not exceed 127 devices.

 Hubs are dual-powered devices. They can be powered via

the uplink connection (bus-powered), or by an optional

power supply (self-powered).

 When bus-powered, downstream ports support only low-

power devices, such as a mouse, keyboard or a self-

powered hub.

 When self-powered, downstream ports can support high-

power devices, such as a printer or a bus-powered hub.

Note: A USB204A must be self-powered by an optional power adapter

to daisy-chain to another hub that is only bus-powered.

Connect the Hub to the Host PC

The USB204A should be connected

directly a host PCs USB port. The hub

only has to be plugged in to the host

USB connector to operate. Up to 4

other hubs can then be daisy-chained

in series from the first hub.

1. Prepare standard shielded 90WUSB

cable with Type-A (upstream) and

Type-B (downstream) plugs on

each end. The maximum cable

length is 5 meters (16.4 feet).

2. Connect the Type-A end of the cable to the host PCs USB

port and the Type-B end to the hub.

3. Check that the hubs upstream port LED is green. If this LED

is red or off, then follow the advice in the section

Troubleshooting to diagnose the problem.

Connect Devices to the Hub

Before connecting devices to the hub,

check the USB interface requirements.

Devices can be low-power or high-

power, with low-speed or full-

speed signaling. The USB204A is a

high-power, full-speed device. Refer to

instructions supplied with each USB

device for their individual operation.

1. Prepare standard 90WUSB cable

with Type-A (upstream) and Type-B

(downstream) plugs on each end.

Low-Speed Devices: Shielded or unshielded 90WUSB cable

Full-Speed Devices: Shielded 90WUSB cable

Cable Length: Maximum 3 m (9.8 ft) for unshielded cable

Maximum 5 m (16.4 ft) for shielded cable

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Quick Installation Guide

2. Connect the Type-A end of the cable to one of the hubs

downstream ports and the Type-B end to the USB device.

3. Check that the hubs downstream port (green) LED is on. If

this LED is off, then follow the advice in the section

Troubleshooting to diagnose the problem.

Troubleshooting

The USB204A can be easily monitored through its indicators.

You should be able to quickly resolve any problem by following

the troubleshooting steps listed below. If you cannot solve the

problem, contact your Accton distributor for further assistance.

General Problems

Many problems and error conditions can be cleared by first

following these steps:

1. Ensure all upstream cables are properly connected and that

all upstream hubs and the host PC are powered on.

2. Be sure the host PC and hub are not in suspend mode by

pressing any key on the keyboard or moving the mouse.

3. Disconnect devices from the hub and reset the hub. To

reset the hub, simply unplug the uplink connection and then

plug it back in.

Uplink Port LED is Red

This indicates an overcurrent condition exists.

1. Disconnect devices on downstream ports 1 through 4 one

at a time until the LED turns green. The last device

disconnected is causing the overcurrent condition.

2. If the LED is still red with all devices removed, reset the hub

by unplugging the uplink connection and plugging it back in.

If the LED remains red the unit is defective and should be

replaced.

A Single Downstream Port LED is Off

The port has been disabled by the host PC. An overcurrent

condition may exist on the port, or the device driver identified a

problem with the device and turned the port off.

1. Disconnect the device. If the port LED does not turn on,

reset the hub. If the LED then turns on, you can reattach

the device.

2. If the LED does not turn on after the hub reset, you may

have to reboot the host PC.

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USB Hub

USB Application Diagram

EMI Warning

FCC Class B Certification

Accton Technology Corporation

Model Numbers: USB204A

FCC ID: HED4000USB

This device complies with Part 15 of the FCC Rules. Operation

is subject to the following 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.

Warning: 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 the

one which the receiver is connected to

· Consult the dealer or an experienced radio/TV technician for help

You are cautioned that changes or modifications not expressly

approved by the party responsible for compliance could void

your authority to operate the equipment.

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Quick Installation Guide

You may use shielded USB cable.

Note: In order to maintain compliance with the limits of a Class

B digital device, Accton requires that you use a quality

interface cable when connecting to this device. Changes or

modifications not expressly approved by Accton could void the

user's authority to operate this equipment. Suggested cable

type is 90WUSB cable.

Canadian Standards Association (CSA) Statement

This digital apparatus does not exceed the Class B limits for

radio noise emissions from digital apparatus as set out in the

interference-causing equipment standard entitled Digital

Apparatus, ICES-003 of the Department of Communications.

Cet appareil numérique respecte les limites de bruits

radioélectriques applicables aux appareils numériques de

Classe B prescrites dans la norme sur le matériel brouilleur :

Appareils Numérques, NMB-003 édictée par le ministère des

Communications.

Voluntary Control Council for Interference (VCCI-B)

EN55022 Declaration of Conformance

This is to certify that the USB Hub is shielded against the

generation of radio interference in accordance with the

application of Council Directive 89/336/EEC, Article 4a.

Conformity is declared by the application of EN55022:1987

Class B (CISPR 22:1985/BS 6527:1988).

CE Mark Declaration of Conformance

This is to certify that this product complies with ISO/IEC Guide

22 and EN45014. It conforms to the following specifications:

EMC: EN55022(1988)/CISPR-22(1985) class B

IEC 1000-4-2(1995) 4kV CD, 8kV AD

IEC 1000-4-3(1995) 3V/m

IEC 1000-4-4(1995) 1kV - (power line)

0.5kV - (signal line)

IEC 1000-4-6(1995) 3Vrms

This product complies with the requirements of the Low Voltage

Directive 73/23/EEC and the EMC Directive 89/336/EEC.

Safety Compliance

Underwriters Laboratories Compliance Statement

Important! Before making connections, make sure you have the

correct Cord Set. Check it (read the label on the cable) against

the following specification list.

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USB Hub

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Wichtige Sicherheitshinweise (GermanSafetyStatement)

1. Bitte lesen Sie diese Hinweise sorgfältig durch.

2. Heben Sie diese Anleitung für den späteren Gebrauch auf.

3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie keine

Flüssi-goder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur

Reinigung.

4. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht zugänglich

sein.

5. Das Gerät ist vor Feuchtigkeit zu schützen.

6. Bei der Aufstellung des Gerätes ist auf sicheren Stand zu achten. Ein Kippen oder

Fallen könnte Beschädigungen hervorrufen.

7. Die Belüftungsöffnungen dienen der Luftzirkulation, die das Gerät vor Überhitzung

schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt werden.

8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.

9. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollte

auch nichts auf der Leitung abgestellt werden.

10. Alle Hinweise und Warnungen, die sich am Gerät befinden, sind zu beachten.

11. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom

Stromnetz trennen. Somit wird im Falle einer Überspannung eine Beschädigung

vermieden.

12. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das

Gerät gelangen. Dies könnte einen Brand bzw. elektrischen Schlag auslösen.

13. Öffnen sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit

nur von authorisiertem Servicepersonal geöffnet werden.

14. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von

einer qualifizierten Servicestelle zu überprüfen:

a. Netzkabel oder Netzstecker sind beschädigt.

b. Flüssigkeit ist in das Gerät eingedrungen.

c. Das Gerät war Feuchtigkeit ausgesetzt.

d. Wenn das Gerät nicht der Bedienungsanleitung entsprechend funktioniert oder Sie

mit Hilfe dieser Anleitung keine Verbesserung erzielen.

e. Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt.

f. Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.

15. Stellen Sie sicher, daß die Stromversorgung dieses Gerätes nach der EN 60950

geprüft ist.Ausgangswerte der Stromversorgung sollten die Werte vonAC 7,5-8V, 50-

60Hz nicht über oder unterschreiten sowie den minimalen Strom von 1A nicht

unterschreiten.

Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70dB(A)

oder weniger.

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Quick Installation Guide

Product Specifications

Standards Conformance Universal Serial Bus Specification 1.0

Number of Ports 4 USB Type-A (downstream) ports

1 USB Type-B (upstream) port

Dimensions 120 x 96 x 28 mm (4.74 x 3.78 x 1.1 in)

Weight 316 g ( 11.1 oz)

System Requirements A PC that supports the Universal Serial Bus

An operating system with a generic USB hub driver,

including Windows 95 (OSR2.1 or later), 98, 2000, and iMac

Power Requirements

Bus-Powered Mode 2.5W, 5 VDC at 0.5A max. (from USB host controller)

Self-Powered Mode 11W, 5.25 VDC at 2.5Amax. (100-240 VAC, 50/60 Hz from

optional adapter)

Maximum Current 2.1A @ 5.25 VDC (from adapter)

Cable Wiring

Full-Speed Devices 90Wshielded USB cable

Low-Speed Devices 90W shielded or unshielded USB cable

Maximum Length 5 m (16.4 ft) for shielded cable, 3 m (9.8 ft) for unshielded

Maximum Devices 127 (5 hubs in daisy-chain, 6 cables end-to-end max.)

Access Method Differential and bi-directional per USB spec. 1.0

12 Mbps full speed, 1.5 Mbps low speed

Status LEDs Power, Bus/Local, Reset, Port 1-4 (on=power,off=failure),

Uplink (green=power/activity, red=overcurrent)

Environmental

Temperature 0° - 40°C / 32° - 104°F (Standard Operating)

-20° - 70°C / -4° - 160°F (Storage)

Humidity 5 - 95% (Noncondensing)

Certification CEMark

Emissions FCC Class B, VCCI Class B, CISPR Class B

Safety UL

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USB Hub

USB204A

E0399-R01

150977-101

Warranty

Accton warrants to the original owner that the product delivered in this

package will be free from defects in material and workmanship for a

period of three (3) years from the date of purchase from Accton or its

authorized reseller. For the warranty to apply, you must register your

purchase by returning the registration card indicating the date of purchase

and including proof of purchase. There will be a minimal charge to

replace consumable components, such as fuses, power transformers,

and mechanical cooling devices. The warranty does not cover the

product if it is damaged in the process of being installed. Accton

recommends that you have the company from whom you purchased

this product install it.

THEABOVE WARRANTYIS IN LIEU OFANY OTHER WARRANTY, WHETHER

EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUTNOT LIMITEDTOANY

WARRANTY OF MERCHANTABILITY, FITNESS FORAPARTICULAR PURPOSE, OR

ANY WARRANTYARISING OUT OFANYPROPOSAL, SPECIFICATION OR SAMPLE.

ACCTON SHALLNOT BE LIABLE FOR INCIDENTALOR CONSEQUENTIALDAMAGES.

ACCTON NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT

ANY OTHER LIABILITY.

No part of this document may be copied or reproduced in any form or

by any means without the prior written consent of Accton Technology

Corporation.

Accton makes no warranties with respect to this documentation and

disclaims any implied warranties of merchantability, quality, or fitness

for any particular purpose. The information in this document is subject

to change without notice. Accton reserves the right to make revisions

to this publication without obligation to notify any person or entity of

any such changes.

International Headquarters

No. 1 Creation Road III,

Science-based Industrial Park

Hsinchu 300, Taiwan, R.O.C.

Phone: 886-3-5770-270

FAX: 886-3-5770-267

Internet: [email protected]

USA Headquarters

P.O. Box 51420

Irvine, CA 92619-1420

Phone Numbers -

Sales: 888-398-2101 or 949-707-4800

Support: 888-398-4101 or 949-707-4847

RMA: 888-398-3101 or 949-707-4828

FAX: 949-707-2460

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