IBM IntelliStation E Pro Type 6216 User Manual page 80

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IBM IntelliStation E ProTypes 6216 and 6226:User's Guide
Universal Serial Bus (USB) connectors
Your computer has four Universal Serial Bus (USB) 2.0 connectors (two on the
front and two on the rear of the computer) for optional telephony and multimedia
devices. USB devices are configured automatically with Plug and Play technology.
Notes:
1. If you attach a standard (non-USB) keyboard to the keyboard connector, the
USB connectors and devices will be disabled during the power-on self-test.
2. If you install a USB keyboard that has a mouse connector, the USB keyboard
emulates a mouse. You will not be able to disable the mouse settings in the
Configuration/Setup Utility program.
Use a 4-pin USB cable to connect external devices to USB connectors.
USB 2.0 technology transfers data at up to 480 Mb per second (Mbps) with a
maximum of 127 external devices and a maximum signal distance of 5 meters (16
ft) per segment provided that the device attached to the computer is a USB 2.0
device. If the computer has multiple USB devices attached to it, the USB hub
must be USB 2.0, or all USB 2.0 devices will transfer data at 12 Mbps.
Audio connectors
The audio connectors are used to attach external audio equipment to your
computer.
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 your 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 your computer for
recording sounds on the hard-disk drive or using speech recognition software.
Adaptec Ultra160 SCSI connector
Some models come with an Adaptec Ultra160 SCSI adapter that supports a SCSI
internal channel that supports up to 15 SCSI devices. This configuration supports
zero wait state, 32-bit memory transfers at 160 MB per second when low voltage
differential (LVD) SCSI peripheral devices are attached. In addition, this adapter
uses:
— Double-transition clocking to achieve high transfer rates
— Domain-name validation to negotiate compatible data-transfer speeds with
each device
— Cyclic redundancy checking for improved data reliability