IBM 621410U Hardware Maintenance Manual - Page 91

USB cables, USB connectors, Line out, Line in, Microphone, Ultra160 SCSI connector

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2. If you install a USB keyboard that has a mouse connector, the USB keyboard emulates a mouse, and you will not be able to disable the mouse settings in the IBM Setup Utility program. USB cables: Use a 4-pin USB cable to connect external devices to USB connectors. USB technology transfers data at up to 12 megabits per second (Mbps) with a maximum of 127 external devices and a maximum signal distance of 5 meters (16 ft) per segment. USB connectors: See "Input/output connectors" on page 78 for the location of the USB connectors. 1 4 Table 15. USB-port connector pin-number assignments Pin Signal 1 VCC 2 -Data 3 +Data 4 Ground Audio connectors The audio connectors are used to connect external audio equipment to the computer. See "Input/output connectors" on page 78 for the location of these connectors. Line in (blue) Line out (green) Mic (pink) Line out: This connector is used to send audio signals from the computer to external devices, such as powered speakers with built-in amplifiers, headphones, multimedia keyboards, or the audio Line in connector on a stereo system. Note: The internal speaker in the computer is disabled when any device is attached to this connector. Line in: This connector is used to accept audio signals from external devices, such as line output from external audio equipment into the computer sound system. Microphone: This connector is used to connect a microphone to the computer when you want to record sounds on the hard-disk drive or use speech recognition software. Ultra160 SCSI connector Some computer models come with a SCSI adapter, which supports an Ultra160 SCSI internal channel in a full-featured PCI 2.1-/2.2-compliant bus master package. This configuration supports zero wait state, 32-bit memory transfers at 160 MB per Installing options 83

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2.
If you install a USB keyboard that has a mouse connector, the USB keyboard
emulates a mouse, and you will not be able to disable the mouse settings in the
IBM Setup Utility program.
USB cables:
Use a 4-pin USB cable to connect external devices to USB connectors.
USB technology transfers data at up to 12 megabits per second (Mbps) with a
maximum of 127 external devices and a maximum signal distance of 5 meters (16
ft) per segment.
USB connectors:
See
“
Input/output connectors
”
on page 78 for the location of the
USB connectors.
1
4
Table 15. USB-port connector pin-number assignments
Pin
Signal
1
VCC
2
–
Data
3
+Data
4
Ground
Audio connectors
The audio connectors are used to connect external audio equipment to the
computer. See
“
Input/output connectors
”
on page 78 for the location of these
connectors.
Line out (green)
Line in (blue)
Mic (pink)
Line out:
This connector is used to send audio signals from the computer to
external devices, such as powered speakers with built-in amplifiers, headphones,
multimedia keyboards, or the audio Line in connector on a stereo system.
Note:
The internal speaker in the computer is disabled when any device is
attached to this connector.
Line in:
This connector is used to accept audio signals from external devices, such
as line output from external audio equipment into the computer sound system.
Microphone:
This connector is used to connect a microphone to the computer
when you want to record sounds on the hard-disk drive or use speech recognition
software.
Ultra160 SCSI connector
Some computer models come with a SCSI adapter, which supports an Ultra160
SCSI internal channel in a full-featured PCI 2.1-/2.2-compliant bus master package.
This configuration supports zero wait state, 32-bit memory transfers at 160 MB per
Installing options
83