Philips 150P4AG, 150P4AB User Manual

Philips 150P4AG/150P4AB Electronic User's Manual

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Safety and Troubleshooting Information

Safety Precautions and Maintenance • Installation Locations • FAQs • Troubleshooting • Regulatory Information • Other Related Information

Safety precautions and maintenance

WARNING: Use of controls, adjustments or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards and/or mechanical hazards.

Read and follow these instructions when connecting and using your computer monitor:

Unplug the monitor if you are not going to use it for an extensive period of time.● Unplug the monitor if you need to clean it with a slightly damp cloth. The screen many be wiped with

a dry cloth when the power is off. However, never use alcohol, solvents or ammonia-based liquids.

●

Consult a service technician if the monitor does not operate normally when you have followed the instructions in this manual.

●

The casing cover should be opened only by qualified service personnel.● Keep the monitor out of direct sunlight and away from stoves or any other heat source.● Remove any object that could fall into the vents or prevent proper cooling of the monitor’s electronics.● Do not block the ventilation holes on the cabinet.● Keep the monitor dry. To avoid electric shock, do not expose it to rain or excessive moisture.● When positioning the monitor make sure the power plug and outlet are easily accessible.● If turning off the monitor by detaching power cable or DC power cord, wait for 6 seconds before

attaching the power cable or DC power cord for normal operation.

●

To avoid the risk of shock or permanent damage to the set do not expose the monitor to rain or excessive moisture.

●

When positioning the monitor, make sure the power plug and outlet are easily accessible.● IMPORTANT: Always activate a screen saver program during your application. If a still image in high

contrast remains on the screen for an extended period of time, it may leave an 'after-image' or 'ghost image' on front of the screen. This is a well-known phenomenon that is caused by the shortcomings inherent in LCD technology. In most cases the after-image will disappear gradually over a period of time after the power has been switched off. Be aware that the after-image symptom cannot be repaired and is not covered under warranty.

●

Consult a service technician if the monitor does not operate normally when the operating instructions given in this manual have been followed.

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Installation Locations

Safety & Troubleshooting

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Avoid exposure to heat and extreme cold● Do not store or use the LCD monitor in locations exposed to heat, direct sunlight or extreme cold.● Avoid moving the LCD monitor between locations with large temperature differences. Choose a site

that falls within the following temperature and humidity ranges.

Temperature: 5-40°C 41-104°F

❍

Humidity: 20-80% RH❍

●

Do not subject the LCD monitor to severe vibration or high impact conditions. Do not place the LCD monitor inside a car boot.

●

Take care not to mishandle this product by either knocking or dropping during operation or transportation.

●

Do not store or use the LCD monitor in locations where there is a high level of humidity or in dusty environments. Do not allow water or other liquids to spill on or into the LCD monitor.

●

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Safety & Troubleshooting

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About This Manual

About This Guide • Notational Descriptions

About This Guide

This electronic user's guide is intended for anyone who uses the Philips LCD Monitor. It describes the LCD monitor's features, setup, operation and other important information. Its contents are identical to the information in our printed version.

It includes the following sections:

Safety and Troubleshooting Information provides tips and solutions for common problems as well as

other related information you may need.

●

About This Electronic User's Manual gives an overview of information included, along with notation icon descriptions and other documentation for your reference.

●

Product Information gives an overview of the monitor's features as well as the technical specifications

for this monitor.

●

Installing Your Monitor describes the initial setup process and gives an overview of how to use the

monitor.

●

On-Screen Display provides information on adjusting the settings on your monitor.● Customer Care and Warranty contains a list of worldwide Philips Consumer Information Centers

along with help desk phone numbers and information on the warranty applicable to your product.

●

Glossary defines technical terms.● Download and Print Option transfers this entire manual to your hard drive for easy reference.●

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Notational Descriptions

The following subsections describe notational conventions used in this document.

Notes, Cautions and Warnings

Throughout this guide blocks of text may be accompanied by an icon and printed in bold or italic type. These blocks contain notes, cautions or warnings. They are used as follows:

NOTE: This icon indicates important information and tips that help you make better use of your computer system.

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CAUTION: This icon indicates information that tells you how to avoid either potential damage to hardware or loss of data.

WARNING: This icon indicates the potential for bodily harm and tells you how to avoid the problem.

Some warnings may appear in alternate formats and may not be accompanied by an icon. In such cases, the specific presentation of the warning is mandated by the relevant regulatory authority.

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part is prohibited without written consent of Philips Electronics NV

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Product Information

Product Features • Technical Specifications • Resolution & Preset Modes • Philips Pixel Defect Policy • Automatic Power Saving • Physical Specification • Pin Assignment • Product Views • Physical Function

Product Features

150P4AG/150P4AB

LightFrame

for brightest, sharpest and vivid images ever!

15-inch color LCD monitor with excellent display performance

●

Front firing speakers with 2x1W RMS stereo sound output● Dual input - accepts both DVI Digital and VGA analog inputs● Embedded universal AC power supply●

sRGB compliance●

Adjustable viewing height● AUTO adjustment optimizes picture quality●

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LightFrameTM for Windows

Introduction

Philips LightFrame

feature enriches the experience of pictures and video on a Philips monitor.

LightFrame

will boost the brightness and sharpness of photos and videos on the monitor screen.

To control the LightFrame

feature in your monitor, you have to install the LightFrameTM application

which you will find on this CD-ROM.

Note

Philips LightFrame

will only work with monitors that have been built to use this software. Earlier Philips monitors or other manufacturers monitors will not work with this special software. It is recommended that you install this software only on a Philips monitor designed to use it. These monitors can be identified

by the LightFrame

logo on the front of the monitor.

LightFrame

will work with true Windows-based programs and DOS-based programs that operate in a

Windows environment. It will not work with DOS-based programs operating only in a DOS environment.

Language Selection

Product Information

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While English is the default language of LightFrameTM, the User Interface can be set up to operate in Dutch, French, German, Italian, Portuguese, Spanish, Simplified Chinese, Traditional Chinese or Korean.

Installation

1) To install LightFrame

, place the CD in the CD-ROM drive.

2) Next, when the menu of items on the CD appears on your screen, click on 'Install LightFrame

3) Now, follow the on-screen prompts to properly install the program. The software checks to see if you have a compatible monitor. You must agree to the license agreement terms for the software to install.

4) After installation, LightFrame

automatically loads and the icon appears in the taskbar.

Notes

If LightFrame

detects that your monitor is not LightFrameTM compatible, a message appears on the

monitor screen. If you see this message, you can select to abort or continue the installation. However, if you continue the installation, LightFrame

will probably not work on the monitor.

How to use LightFrame

After installation, LightFrameTM starts up automatically whenever the computer is started. For information about using LightFrame

please refer to the help information which is available after

installation.

Compatibility

This version of LightFrame

is compatible with Windows 95 Windows 98 Windows Me (Millennium Edition) Windows XP Windows 2000 Professional Edition.

LightFrameTM 3 -- Frequently Asked Questions (and answers)

Q: Is LightFrame

2 compatible with LightFrameTM 3?

A: No. If you run LightFrame

1 or 2 software with a Philips LightFrameTM 3 monitor, nothing will

happen.

Q: Can I use LightFrame

3 software on my LightFrameTM 1 / 2 monitor.

A: No for a LightFrame

1 or 2 monitor you need to use LightFrameTM 1 or 2 software. It is however

possible to use the LightFrame

2 software on a LightFrameTM 1 monitor.

Q: What is the difference between LightFrame

1, LightFrameTM 2 and LightFrameTM 3?

A: LightFrame

1 was the very first generation of the LightFrameTM feature introduced by Philips. In that

version the user needs to manually turn on/off the feature and select the window or area to apply it to. LightFrame

2 offers the automatic detection in Internet Explorer on top of the LightFrameTM 1

functions. With this feature LightFrame

will automatically scan a web page in Internet Explorer, find the

largest picture and enhance it.

Product Information

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LightFrameTM 3 offers everything that LightFrameTM 2 has but now with the possibility to enhance multiple pictures at the same time. So in a web page LightFrame

will find all the pictures and enhance

them simultaneously or in a photo viewing application you can enhance multiple photos at once. Furthermore LightFrame

3 comes with an easy to activate full screen function. This is especially handy

for games and movies. Just one click on the full screen button and LightFrame

enhances your total

monitor.

Q: Can I upgrade my current Philips monitor to LightFrame

A: No. For LightFrame

3 Philips developed special hardware which is build into the monitor. Therefore

upgrading from LightFrame

1 or 2 to 3 is not possible. It is however possible to upgrade your

LightFrame

1 monitor to LightFrameTM 2 by installing the LightFrameTM 2 software.

Q: Can I install LightFrame

3 over an older version?

A: When you install LightFrame

3 the setup wizard will scan your system to check if you have an older version installed. If so, the setup wizard will remove that version before continuing with the installation of the new version. Please be aware that for LightFrame

3 you also need a monitor which is capable of

running the LightFrame

3 feature.

Q: How many windows can I enhance at the same time?

A: In LightFrame

3 it is possible to enhance up to 7 windows at the same time. It is however important to understand that when other windows, toolbars or menus overlap the enhanced windows, the maximum number of enhanced windows can be less.

Q: How many pictures can LightFrameTM enhance in Internet Explorer?

A: In Internet Explorer LightFrame

3 can enhance up to 14 pictures at the same time. LightFrameTM 3 filters the pictures it finds based on the minimum size of the picture therefore it may happen that some pictures are not enhanced when you open a web page.

Q: Can I enhance two or more areas at the same time?

A: Yes. With LightFrame

3 you have the possibility to select several windows with pictures and videos

and enhance them at the same time.

Q: Some times my mouse changes to a light bulb with a plus sign and sometimes with a minus

sign. What is the difference?

A: The mouse pointer in the shape of a light bulb indicates that LightFrame

is ready to accept a selection from you for which window should be enhanced. If there is a minus sign it means that you are moving over a window where LightFrame

is already

active and clicking this window will switch the enhancement off. A plus sign appears when moving over a window which is not enhanced and clicking that one will enable LightFrame

on that window.

Q: What is wrong when my mouse changes into a light bulb with a red cross?

A: Nothing. It just means that your mouse moves outside the application where you already have one or

more windows enhanced. You can only select windows with in the same application. The cross indicates that you move into an area where you cannot make a selection.

Q: Can I use LightFrame

with Netscape?

A: You can use LightFrame

with Netscape, but its functions are limited to manually highlighting the

entire Netscape client window. Since LightFrame

is specifically designed for bright, high contrast photo

Product Information

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and video display, highlighting an entire Web page -- including text -- is not recommended. For best results, we recommend you use LightFrame

with Microsoft Internet Explorer version 5.0 or higher. You can downloaded Internet Explorer free of charge from the Microsoft website (www.microsoft.com). A copy of Internet Explorer 5.5 is also included on the CD-ROM shipped with your

monitor.

Q: Can I activate LightFrame

on my entire screen?

A: Yes you can. And with LightFrame

3 this becomes even easier. You just press the LightFrame

button on the bezel to activate it.

Q: When I apply LightFrame

to a text document I get blurry characters, what is wrong?

A: Nothing is wrong. The effect which you see is due to the sharpness enhancement that LightFrame

is doing on your monitor. This sharpness improves a photo or video significantly however on black text on a light background the effect is less favorable. Please keep in mind that LightFrame

is developed to

enhance your photos and videos and not really for text or synthetic pictures. You can decrease this effect by lowering the sharpness setting in the LightFrame

3 control panel.

Q: How can I tell if my monitor comes with LightFrame

A: All Philips LightFrame

monitors display this logo on their front bezel:

Q: How do I use the LightFrameTM 3 control bar that appears at the top my screen?

A: The control bar is another upgrade that helps you run all LightFrame

3's neat, new features. The

illustration below describes the tasks each button performs.

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Technical Specifications*

LCD PANEL

• Type TFT LCD

Product Information

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• Screen size 15" visual

• Pixel Pitch 0.297 x 0.297mm (15.0")

• LCD Panel type

1024 x 768 pixels R.G.B. vertical stripe Anti-glare polarizer, hard coated

• Effective viewing area 304.1 x 228.1mm (15.0")

• Display Colors 16.7M colors

SCANNING

• Vertical refresh rate 56Hz-76Hz

• Horizontal frequency 30kHz-61kHz

VIDEO

• Video dot rate 80 MHz

• Input impedance

- Video 75 ohm

- Sync 2K ohm

• Input signal levels 700m Vpp

• Sync input signal

Separate sync Composite sync

Sync on Green

• Sync polarities Positive and negative

• Input Frequency

XGA Hsync 48- 61 kHz, Vsync 60 - 76 Hz (N.I.) SVGA Hsync 35- 50 kHz, Vsync 56 - 75 Hz (N.I.) VGA Hsync 31- 38 kHz, Vsync 60 - 76 Hz (N.I.)

• Video interface

Dual input: Both Analog (D-Sub) and DVI-D (Digital only) are available. It can be switched via OSD selection.

AUDIO

• Input signal level 0.7 Vpp

• Input signal connector 3.5mm mini jack

• Loudspeaker

2W Stereo Audio (1W/channel RMS x2, 300Hz-13kHz, 16 ohm, THD=10%)

OPTICAL CHARACTERISTICS

• Contrast ratio 400 (typ.)

• Brightness

250 cd/m2 (typ.)

• Peak contrast angle 6 o'clock

Product Information

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• White Chromacity

x: 0.283 y: 0.297 (at 9300° K) x: 0.313 y: 0.329 (at 6500° K) x: 0.313 y: 0.329 (at sRGB)

• Viewing Angle (C/R >5)

Upper >50° (typ.) Lower >60° (typ.) Left >75 ° (typ.) Right >75 ° (typ.)

• Response time <=25ms (typ.)

sRGB

sRGB is a standard for ensuring correct exchange of colors between different devices (e.g. digital cameras, monitors, printers, scanners, etc.)

Using a standard unified color space, sRGB will help represent pictures taken by an sRGB compatible device correctly on your sRGB enabled Philips monitors. In that way, the colors are calibrated and you can rely on the correctness of the colors shown on your screen.

Important with the use of sRGB is that the brightness and contrast of your monitor is fixed to a predefined setting as well as the color gamut. Therefore it is important to select the sRGB setting in the monitor's OSD.

To do so, open the OSD by pressing the OK button on the front of your monitor. Use the down button to go to Adjust Color and press OK again. Then move the down button to go to sRGB and press OK again.

Exit this OSD. After this, please don't change the brightness or contrast setting of your monitor. If you change either of

these, the monitor will exit the sRGB mode and go to a color temperature setting of 6500K. For more information on sRGB, please visit: www.srgb.com

Note: sRGB mode is not available while 'LightFrameTM' function is activated.

* This data is subject to change without notice.

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Resolution & Preset Modes

• Maximum 1024 x 768 at 75Hz

• Recommended 1024 x 768 at 60Hz

14 user definable modes

14 factory preset modes:

Product Information

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H. freq (kHz) Resolution V. freq (Hz)

31.469 640*350 70.086

31.469 720*400 70.087

31.469 640*480 59.940

35.000 640*480 67.000

37.861 640*480 72.809

37.500 640*480 75.000

35.156 800*600 56.250

37.879 800*600 60.317

48.077 800*600 72.188

46.875 800*600 75.000

49.700 832*624 75.000

48.363 1024*768 60.004

56.476 1024*768 70.069

60.023 1024*768 75.029

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Automatic Power Saving

If you have VESA DPMS compliance display card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use. If an input from a keyboard, mouse or other input device is detected, the monitor will 'wake up' automatically. The following table shows the power consumption and signaling of this automatic power saving feature:

Power Management Definition

VESA Mode Video H-sync V-sync Power Used LED color

ON Active Yes Yes < 30W Green

OFF Blanked No No < 1W Amber

Product Information

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This monitor is ENERGY STAR® compliant. As an ENERGY STAR® Partner, PHILIPS has determined that this product meets the

ENERGY STAR

guidelines for energy efficiency.

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Physical Specifications

• Dimension incl. Pedestal (WxHxD) *

343 x 319 x 218 mm (in lowest position)

• Weight * 3.9 kg

• Height adjustment rang 48 mm

• Tilt (Forward / Backward) - 5° / 25°

• Power supply 100 — 240 VAC, 50/60 Hz

• Power consumption 20 W (typ.)

• Temperature (operating) 5° C to 40° C

• Relative humidity 20% to 80%

• System MTBF 50K hrs (CCFL 40Khrs)

• Cabinet color

150P4AG: Light Gray 150P4AB: Black

* This data is subject to change without notice.

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Pin Assignment

1. The digital only connector contains 24 signal contacts organized in three rows of eight contacts. Signal pin assignments are listed in the table:

Pin No.

Signal Assignment

No.

Signal Assignment

Pin No.

Signal Assignment

1 T.M.D.S. Data2- 9 T.M.D.S. Data1- 17 T.M.D.S. Data02 T.M.D.S. Data2+ 10 T.M.D.S. Data1+ 18 T.M.D.S. Data0+

T.M.D.S. Data2/4 Shield

T.M.D.S. Data1/3 Shield

T.M.D.S. Data0/5

Shield 4 No connect 12 No connect 20 No connect 5 No connect 13 No connect 21 No connect

6 DDC Clock 14 +5V Power 22

T.M.D.S. Clock

Shield 7 DDC Data 15 Ground (for +5V) 23 T.M.D.S. Clock+

Product Information

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8 No connect 16 Hot Plug Detect 24 T.M.D.S. Clock-

2. The 15-pin D-sub connector (male) of the signal cable:

No.

Assignment

No.

Assignment

1 Red video input 9 DDC +5V 2 Green video input 10 Logic ground

3 Blue video input 11

Identical output - connected to pin 10

12 Serial data line (SDA)

5 Cable detect 13 H. Sync / H+V 6 Red video ground 14 V. Sync

7 Green video ground 15 Data clock line (SCL) 8 Blue video ground

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Product Views

Follow the links to see various views of the monitor and its components.

Front View Product Description

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Physical Function

Product Information

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1) Tilt

2) Height adjustment

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Product Information

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Installing your LCD Monitor

Your LCD Monitor : Front View Product Description • Connecting to Your PC • The Base •

Getting Started • Optimizing Performance

Front View Product Description

UP and DOWN buttons are used when adjusting the OSD of your monitor LEFT and RIGHT buttons, like the UP and DOWN buttons, are also used

in adjusting the OSD of your monitor. BRIGHTNESS hotkey. When the UP and DOWN arrow buttons are

pressed, the adjustment controls for the BRIGHTNESS will show up.

OK button which when pressed will take you to the OSD controls

POWER button switches your monitor on

Installing your LCD Monitor

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Automatically adjust the horizontal position, vertical position, phase and clock setting.

LightFrameTM hotkey for mode-switching between full-screen mode and multi-window mode

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Optimizing Performance

For best performance, ensure that your display settings are set at 1024x768@60Hz (for 14"/15") or 1280x1024, 60Hz (for 17"/18").

●

Note: You can check the current display settings by pressing the 'OK' button once.

Go into the Product Information. The current display mode is shown on the item called RESOLUTION.

You can also install the Flat Panel Adjust (FP Adjust) program, a program for getting the best performance out of your monitor. This included on this CD. Step-by-step instructions are provided to guide you through the installtion process. Click on the link to know more about this program.

More about

FP_setup01.exe

●

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Installing your LCD Monitor

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On-Screen Display

Description of the On-Screen Display • The OSD Tree

Description of the On Screen Display

What is the On-Screen Display?

This is a feature in all Philips LCD monitors. It allows an end user to adjust screen performance of the monitors directly though an on-screen instruction window. The user interface provides user-friendliness and ease-of-use when the user is operating the monitor.

Basic and simple instruction on the control keys.

When you press the

button on the front control of your monitor, the On-Screen Display (OSD) Main

Controls window will pop up and you can then start making adjustments to your monitor's various features. Use the

or the keys to make your adjustments.

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The OSD Tree

Below is an overall view of the structure of the On-Screen Display. You can use this as a reference when you want to work your way around the different adjustments later on.

Analog signal input:

On-Screen Display

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On-Screen Display

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Digital signal input:

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On-Screen Display

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Customer Care & Warranty

PLEASE SELECT YOUR COUNTRY/AREA TO REVIEW DETAILS OF YOUR WARRANTY COVERAGE

WESTERN EUROPE: Austria • Belgium • Cyprus • Denmark • France • Germany • Greece •

Finland • Ireland • Italy • Luxembourg • the Netherlands • Norway • Portugal • Sweden • Switzerland • Spain • United Kingdom

EASTERN EUROPE: Czech Republic • Hungary • Poland • Russia • Turkey LATIN AMERICA: Antilles • Argentina • Brasil • Chile • Colombia • Mexico • Paraguay • Peru

• Uruguay • Venezuela

NORTH AMERICA: Canada • USA PACIFIC: Australia • New Zealand ASIA: Bangladesh • China • Hong Kong • India • Indonesia • Japan • Korea • Malaysia •

Pakistan • Philippines • Singapore • Taiwan • Thailand

AFRICA: Morocco • South Africa MIDDLE EAST: Dubai • Egypt

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Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Color temperature

A way of describing the color of a radiating source in terms of the temperature (in degrees Kelvin) of a black body radiating with the same dominant frequency as the source.

Most Philips monitors offer the possibility of setting the color temperature to any desired value.

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D-SUB

Your monitor comes with a D-Sub cable.

Digital Visual Interface (DVI)

The Digital Visual Interface (DVI) specification provides a high-speed digital connection for visual data types that is display technology independent. The interface is primarily focused at providing a connection between a computer and its display device. The DVI specification meets the needs of all segments of the PC industry (workstation, desktop, laptop, etc.) and will enable these different segments to unite around one monitor interface specification.

The DVI interface enables:

Content to remain in the lossless digital domain from creation to consumption.1. Display technology independence.2. Plug and play through hot plug detection, EDID and DDC2B.3. Digital and Analog support in a single connector.4.

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Glossary

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Energy Star Computers Programme

An energy conservation programme launched by the US Environmental Protection Agency (EPA) with the primary aim of promoting the manufacture and marketing of energy-efficient office automation equipment. Companies joining this programme must be willing to commit themselves to manufacturing one or more products capable of going into a low -power state (< 30 W) either after a period of inactivity or after a predetermined time selected by the user.

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LCD Liquid Crystal Display

An alphanumeric display using the unique properties of liquid crystal to form characters. The latest flat-panel displays comprise a matrix of hundreds or thousands of individual LCD cells that generate text and colorful graphics on a screen. They consume little power though they do require external lighting to make them legible to the user.

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USB or Universal Serial Bus

A smart plug for PC peripherals. USB automatically determines resources (like driver software and bus

bandwidth) required by peripherals. USB makes necessary resources available without user intervention.

USB eliminates "case angst" -- the fear of removing the computer case to install add-on peripherals. And USB also eliminates adjustment of complicated IRQ settings when installing new peripherals.

●

USB does away with "port gridlock." Without USB, PCs are normally limited to one printer, two Com port devices (usually a mouse and modem), one Enhanced Parallel Port add-on (scanner or video camera, for example) and a joystick. More and more peripherals for multimedia computers arrive on the market every day. With USB, up to 127 devices can run simultaneously on a computer.

●

USB permits "hot plug-in." There's no need to shut down, plug in, reboot and run set-up to install peripherals. And no need to go through the reverse process to unplug a device.

●

In short, USB transforms today's "Plug-and-Pray" into true Plug-and-Play!

Hub

Glossary

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A Universal Serial Bus device that provides additional connections to the Universal Serial Bus. Hubs are a key element in the plug-and-play architecture of USB. The Figure shows a typical hub. Hubs

serve to simplify USB connectivity from the user's perspective and provide robustness at low cost and complexity.

Hubs are wiring concentrators and enable the multiple attachment characteristics of USB. Attachment points are referred to as ports. Each hub converts a single attachment point into multiple attachment points. The architecture supports concatenation of multiple hubs.

The upstream port of a hub connects the hub towards the host. Each of the other downstream ports of a hub allows connection to another hub or function. Hubs can detect, attach and detach at each downstream port and enable the distribution of power to downstream devices. Each downstream port can be individually enabled and configured at either full or low speed. The hub isolates low speed ports from full speed signaling.

A hub consists of two portions: the Hub Controller and Hub Repeater. The repeater is a protocol-controlled switch between the upstream port and downstream ports. It also has hardware support for reset and suspend/resume signaling. The controller provides the interface registers to allow communication to/from the host. Hub specific status and control commands permit the host to configure a hub and to monitor and control its ports.

Device

A logical or physical entity that performs a function. The actual entity described depends on the context of the reference. At the lowest level, device may refer to a single hardware component, as in a memory device. At a higher level, it may refer to a collection of hardware components that perform a particular function, such as a Universal Serial Bus interface device. At an even higher level, device may refer to the function performed by an entity attached to the Universal Serial Bus; for example, a data/FAX modem device. Devices may be physical, electrical, addressable, and logical.

Downstream

The direction of data flow from the host or away from the host. A downstream port is the port on a hub electrically farthest from the host that generates downstream data traffic from the hub. Downstream ports receive upstream data traffic.

Glossary

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