ports, connectors, and cables
DESCRIPTION
Ports, connectors, and cables. Unit objectives Identify and connect serial and parallel ports, cables, and connectors Identify and connect PS/2 ports, cables, and connectors Identify and connect USB ports, cables, and connectors Identify and connect FireWire ports, cables, and connectors - PowerPoint PPT PresentationTRANSCRIPT
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Ports, connectors, and cables
Unit objectives Identify and connect serial and parallel ports,
cables, and connectors Identify and connect PS/2 ports, cables, and
connectors Identify and connect USB ports, cables, and
connectors Identify and connect FireWire ports, cables, and
connectors Identify and connect infrared and Bluetooth
wireless ports Identify and connect multimedia ports Identify the symptoms, probable causes, and
potential solutions to port, cable, and connector related problems
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Topic A Topic A: Serial and parallel ports, cables,
and connectors Topic B: Keyboards, mice, and pointing
devices Topic C: USB ports, cables, and connectors Topic D: FireWire ports, cables, and
connectors Topic E: Infrared and Bluetooth wireless
ports Topic F: Multimedia ports, cables, and
connectors Topic G: Port, cable, and connector
troubleshooting
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Serial transmission
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Parallel transmission
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Serial port resources
Port IRQ I/O address (hex)
COM1 4 03F8-03FF
COM2 3 02F8-02FF
COM3 4 03F8-03FF
COM4 3 02F8-02FF
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Serial port characteristics
Port speed Data bits Start/stop bits Parity Flow control
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Male and female connectors
Male
Female
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Serial connectors
Pin 1
Pin 9Pin 6
Pin 5
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Serial cables
Multiple conductors– Send, receive, power, ground, etc.
Straight-through cable– Pin 1 goes to pin 1– Pin 2 goes to pin 2
Null modem cable– Pins crossed and connected to simulate
modem
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Pin numbersFunction Pin # (9-pin) Pin # (25-pin)
Frame ground n/a 1
Carrier detect (CD) 1 8
Receive 2 3
Transmit 3 2
Data terminal ready (DTR)
4 20
Signal ground 5 7
Data set ready (DSR) 6 6
Request to send (RTS) 7 4
Clear to send (CTS) 8 5
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9-pin null modem connections
9-pin cable functions End 1 End 2
Carrier detect (CD) 1 4
Receive 2 3
Transmit 3 2
Data terminal ready (DTR) 4 1 and 6
Signal ground 5 5
Data set ready (DSR) 6 4
Request to send (RTS) 7 8
Clear to send (CTS) 8 7
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25-pin null modem connections
25-pin cable functions End 1 End 2
Frame ground 1 1
Transmit 2 3
Receive 3 2
Request to send (RTS) 4 5
Clear to send (CTS) 5 4
Data set ready (DSR) 6 20
Signal ground 7 7
Carrier detect (CD) 8 20
Data terminal ready (DTR) 20 6 and 8
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Activity A-1
Examining serial ports, cables, and connectors
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Parallel ports
Parallel transmissions Often used for printers LPT ports
– LPT1– LPT2– Additional ports through expansion
adapters
More modern PCs use USB
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Parallel port resources
Port IRQ I/O address (hex)
LPT1 n/a 0378-037F
LPT2 n/a 0278-027F
LPT3 n/a 03BC-03BF
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Port types
“Normal” or “Default” (unidirectional) Bidirectional versions
– Standard (SPP)– Enhanced (EPP)– Extended capabilities port (ECP)
Communications techniques– Centronics
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Female 25-pin parallel port
Parallel port
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Centronics connectors
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Activity A-2
Examining parallel ports, cables, and connectors
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Topic B Topic A: Serial and parallel ports, cables,
and connectors Topic B: Keyboards, mice, and pointing
devices Topic C: USB ports, cables, and connectors Topic D: FireWire ports, cables, and
connectors Topic E: Infrared and Bluetooth wireless
ports Topic F: Multimedia ports, cables, and
connectors Topic G: Port, cable, and connector
troubleshooting
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PC input devices
Keyboard Mouse Trackball Trackpad Pens (styli) Touch screens
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Keyboard port and connector
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AT keyboard port and connector
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Mouse port and connector
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Bar code reader with Y-cable
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Activity B-1
Examining keyboard and mouse ports
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Topic C Topic A: Serial and parallel ports, cables,
and connectors Topic B: Keyboards, mice, and pointing
devices Topic C: USB ports, cables, and connectors Topic D: FireWire ports, cables, and
connectors Topic E: Infrared and Bluetooth wireless
ports Topic F: Multimedia ports, cables, and
connectors Topic G: Port, cable, and connector
troubleshooting
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USB features
Hot-swappable Self-configuring connections Multiple device support High-speed data transfers Two classes
– Host– Device
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USB device classes
Audio Communications device HID Imaging IrDA Bridge Mass storage Monitor Printer Video
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USB versions
USB 1.1– Up to 12 MBps transfers
USB 2.0– Three speeds: 1.5 MBps, 12 MBps, and
480 MBps– Backward compatible
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USB symbols
USB port symbol
USB 2.0 label
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USB devices in Device Manager
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USB ports
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USB connectors
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USB power
5 volts, 6 amps = 30 watts powe Best for small-draw devices, such as
USB hubs Use a powered hub with many devices
or high-draw devices
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Installing USB devices
1. Run setup program from device manufacturer
2. Connect USB device Bar code readers Keyboards Mice Touch screen monitors Multimedia devices Scanners/printers Biometric devices
3. Restart your computer
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Activity C-1
Examining the USB bus
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Topic D Topic A: Serial and parallel ports, cables,
and connectors Topic B: Keyboards, mice, and pointing
devices Topic C: USB ports, cables, and connectors Topic D: FireWire ports, cables, and
connectors Topic E: Infrared and Bluetooth wireless
ports Topic F: Multimedia ports, cables, and
connectors Topic G: Port, cable, and connector
troubleshooting
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FireWire features
Hot-swapping and self-configuration Multiple device support — Up to 63
devices (16 physical) Data transfer rates of 800 Mbps and
beyond Asynchronous and isochronous
transfer modes– Supports time-critical transfers on the
bus, such as real-time video Based on the Serial SCSI standard Peer-to-peer bus
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FireWire versions
FireWire 400– Up to 400 MBps– Cables up to 4.5 meters
(Daisy chain up to 72 meters)
FireWire 800– Base speed 800 MBps
1.6 and 3.2 GBps versions available
– Cables up to 4.5 meters (Extend to 1000 meters with optical
repeaters)
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Isochronous transfers
Time-critical transfer of data Video capture Real-time video Machine control
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4-pin FireWire ports, connectors
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6-pin FireWire ports, connectors
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FireWire power
30 volts, 1.5 amps = 45 watts power Higher power provisions than USB
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Installing FireWire devices
No device drivers for expansion adapters or devices in – Windows 2000 Professional– All Windows XP versions
OS interacts with device using IEEE 1394 specifications
Simply plug in:– Video cameras– Printers– External drives
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Activity D-1
Examining the FireWire bus
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Topic E Topic A: Serial and parallel ports, cables,
and connectors Topic B: Keyboards, mice, and pointing
devices Topic C: USB ports, cables, and connectors Topic D: FireWire ports, cables, and
connectors Topic E: Infrared and Bluetooth wireless
ports Topic F: Multimedia ports, cables, and
connectors Topic G: Port, cable, and connector
troubleshooting
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Wireless connections
Infrared Radio Bluetooth
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Infrared
Pulses of infrared light 9600 bps to 4 Mbps 10 – 20 feet range Direct line of sight Infrared Serial Data Link (ISDL)
– 1.5 Mbps– 20 feet
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IrDA port
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Radio
Modulated signals sent over radio waves
Not line of sight Varying technologies with varying
features– 802.11g: 54 Mbps
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802.11 wireless router
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Bluetooth
Short-range radio (10 meters) Self-configuring devices Cell phones, PDAs, music players,
etc.
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A Bluetooth mouse
Bluetooth address
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Activity E-1
Exploring wireless communications technologies
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Topic F Topic A: Serial and parallel ports, cables,
and connectors Topic B: Keyboards, mice, and pointing
devices Topic C: USB ports, cables, and connectors Topic D: FireWire ports, cables, and
connectors Topic E: Infrared and Bluetooth wireless
ports Topic F: Multimedia ports, cables, and
connectors Topic G: Port, cable, and connector
troubleshooting
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Multimedia connections
1/8” connectors RCA connectors Coax MIDI S/PDIF S-Video
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RCA and S-Video connectors
USBFireWire
RCA connectorsS-Video
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Coax connector
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MIDI connectors
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S/PDIF connections
Coax S/PDIFconnections
Square S/PDIFinput and outputconnections
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Activity F-1
Examining multimedia connections
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Topic G Topic A: Serial and parallel ports, cables,
and connectors Topic B: Keyboards, mice, and pointing
devices Topic C: USB ports, cables, and connectors Topic D: FireWire ports, cables, and
connectors Topic E: Infrared and Bluetooth wireless
ports Topic F: Multimedia ports, cables, and
connectors Topic G: Port, cable, and connector
troubleshooting
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Serial port, cable and connectors
Serial port physically present, but not listed in Device Manager
Serial port inaccessible PC is unable to detect or connect to
external modem
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Parallel ports, cables and connectors
Parallel port physically present, but not listed in Device Manager
Parallel port inaccessible Cannot print to printer connected to
parallel port
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USB ports, cables and connectors
Cannot connect to or use USB device USB device not listed in Device
Manager USB device works intermittently or not
at all “Unknown Device” in Device Manager
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PS/2 ports, cables and connectors
“No Keyboard Found” BIOS error Moving mouse causes random
characters to appear on the screen or you receive a series of beeps
No mouse pointer or pointer won’t move when you move the mouse
Mouse moves erratically
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Wireless ports
Unable to connect to infrared device Unable to connect to radio wireless
device Unable to connect to Bluetooth
wireless device Wireless device not responding
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Multimedia ports
S/PDIF connection produces garbled data, error messages indicate Unknown Format or Wrong Sample Rate
MIDI device is not found Video problems occur when using S-
Video connection No sound from the speakers
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Activity G-1
Troubleshooting port, cable, andconnector-related problems
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Unit summary Identified and connected serial and parallel
ports, cables, and connectors Identified and connected PS/2 ports, cables,
and connectors Identified and connected USB ports, cables,
and connectors Identified and connected FireWire ports,
cables, and connectors Identified and connected infrared and
Bluetooth wireless ports Identified and connected multimedia ports Resolved port, cable, and connector related
problems