Apple 17-INCH manual USB Ports, USB Connectors, Pin Signal name, Vcc, Gnd

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CHAPTER 3

Devices and Ports

This chapter describes both the built-in I/O devices and the ports for connecting external I/O devices. Each of the following sections describes an I/O port or device.

USB Ports

The PowerBook G4 17-inch computer has two external USB v1.1 ports that can be used to connect additional I/O devices such as a USB mouse, printers, scanners, and low-speed storage devices.

The USB ports on the PowerBook G4 17-inch computer comply with the Universal Serial Bus Specification

1.1Final Draft Revision. For more information about USB on Macintosh computers, consult the references at “USB Interface” (page 62).

USB Connectors

The USB ports use USB Type A connectors, which have four pins each. Two of the pins are used for power and two for data. Figure 3-1(page 25) is an illustration of a Type A port and matching connector. Table 3-1 shows the pin assignments.

Figure 3-1USB Type A port

Table 3-1Pin assignments on the USB port

Pin

Signal name

Description

1

VCC

+5 VDC

2

D–

Data –

3

D+

Data +

4

GND

Ground

The computer provides 5-volt power at 500 mA for each of the two ports.

The USB ports support both low-speed and high-speed data transfers, at up to 1.5 Mbits per second and 12 Mbits per second, respectively. High-speed operation requires the use of shielded cables.

USB Ports

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Legacy Document 2003-03-01 © 2003 Apple Computer, Inc. All Rights Reserved.

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Contents 2003-03-01 PowerBook G4 17-inchApple Inc Contents Expansion Features Abbreviations Contents Figures and Tables Removing RAM expansion slot cover Organization of This Document Introduction to PowerBook G4 17-inchIntroduction PowerBook G4 17-inch Features Overview of PowerBook G4 17-inchAppearance 1Front view of the computer System Software Peripheral DevicesOpen Firmware Computer IdentificationReduced Processor Performance Power Saving FeaturesOperating Modes Overview of PowerBook G4 17-inch System Software Block Diagram Block Diagram and BusesMicroprocessor and Caches PowerPC G4 MicroprocessorMain ICs and Buses Level 2 Cache Intrepid Controller and BusesLevel 3 Cache Bus Destinations Width of data pathFireWire Controllers Boot ROMSystem RAM Ethernet ControllerDMA Support ControllerUSB Interface Interrupt SupportUltra ATA-100 Interface ATA-33 InterfaceSound Circuitry Power ControllerAirPort Extreme Interface CardBus Controller IC Pin Signal name USB ConnectorsUSB Ports VCCFireWire 400 Connector FireWire PortsUSB Storage Devices Pin Signal name Description FireWire 800 ConnectorTPB R TPA RTarget Disk Mode Booting from a FireWire DevicePin Signal name Signal definition Ethernet PortRXN Internal ModemData Security AirPort ExtremeAirPort Extreme Hardware Bluetooth TechnologyAirPort Extreme Software Hard Disk Drive Hard Disk Dimensions4Maximum dimensions of the internal hard disk Hard Disk ConnectorPin number Signal name Signal AssignmentsSignal name Signal description ATA Signal DescriptionsMedia type Reading speed maximum Writing speed SuperDrive DVD-R /CD-RWKeyboard TrackpadMedia type Reading speed maximum Keyboard Illustrations Changing the Operation of the Keyboard7Alternate operations of function and control keys Keyboard 8Embedded numeric keypad operation Keyboard Using the Num Lock Key Using the Fn KeyFunction Keys Key name Control buttonOther Control Keys Embedded KeypadKey name Control button F10 Keypad functionPicture size Flat-Panel DisplayBlack margins Analog Monitor Resolutions Dual Display and Mirror ModeExternal Monitors Frame rateDVI-I Connector Digital Display Resolutions15Main signals on the DVI-I connector External Video Port Pin number Video output connectorPicture size Pixel depth 512 by 24 bpp Sound Inputs Sound SystemSound Outputs Modem Activity Sound SignalsBuilt-in Microphone Audio Input JackInternal Speakers Digitizing SoundDevices and Ports Sound System RAM Expansion Slots Accessing the RAM SlotsElectrical Design of DDR RAM SO-DIMMs Mechanical Design of DDR RAM SO-DIMMsDDR Sdram Devices Configuration of DDR RAM SO-DIMMsAddress Multiplexing RAM SO-DIMM Electrical LimitsDevice size CardBus Slot Expansion Features CardBus Slot Apple Technical Notes PowerPC G4 Microprocessor3D Graphics Mac OS Velocity Engine AltiVecKit Open FirmwarePC Card Manager RAM Expansion ModulesATA Devices FireWire InterfaceUSB Interface Bluetooth Wireless NetworksDigital Visual Interface Supplemental Reference Documents Bluetooth Other Abbreviations Abbreviations and Standard UnitsATA AsicCAS CD-ROMJedec ISOLED MDISPD SO-DIMMTmds USB

17-INCH specifications

The Apple 17-inch model has garnered attention for its impressive balance of performance and portability, making it a popular choice among professionals and creative users alike. Boasting a sleek design, it combines cutting-edge technologies with user-friendly features that enhance productivity and entertainment experiences.

At the heart of the 17-inch display is Apple's Retina technology, which provides stunning visual clarity and vibrant colors. With a resolution that surpasses traditional screens, users can expect crisp text and detailed images, making it an ideal choice for graphic designers, video editors, and anyone who values high-quality visuals. The large screen size creates an immersive experience, especially useful for multitasking, viewing spreadsheets side by side, or editing documents side by side.

Powered by Apple’s latest custom silicon, the 17-inch model delivers remarkable performance. The optimizations in the chip architecture enhance not only processing speeds but also energy efficiency, allowing users to accomplish more without compromising battery life. These advancements in chip technology together with integrated graphics offer smooth performance during intensive tasks such as rendering high-definition graphics or playing demanding games.

The laptop also comes equipped with a robust battery system designed to keep users productive for extended periods. Users can expect several hours of usage on a single charge, ensuring that they can work or enjoy media without the constant need to recharge. Furthermore, fast-charging capabilities minimize downtime, making it convenient for on-the-go professionals.

In terms of connectivity, the 17-inch model offers multiple Thunderbolt and USB-C ports, allowing for quick data transfer and connecting a variety of external devices. This versatility is essential for professionals who may need to hook up to external monitors or utilize peripherals for enhanced functionality.

The built-in audio system features high-fidelity speakers, delivering an outstanding audio experience for music, movies, and video conferencing. The integration of advanced microphones further enhances clarity during calls, making communication seamless.

Overall, the Apple 17-inch laptop stands out as a powerful tool designed for those who demand performance, quality, and flexibility in their devices. With its blend of stunning visuals, powerful processing capabilities, and user-centric features, it remains a strong contender in the market for those seeking a reliable and stylish computing solution.
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