Course ILT 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
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 Presentation
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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