6
Connecting Speakers and a Microphone
If the system includes separate powered speakers and a microphone, connect the speakers to
the Line Out port on the audio card, and connect the microphone to the Microphone port on
the audio card. Connect the speaker power AC adapter to the appropriate speaker(s), and
then to a grounded, three-prong AC wall outlet. See the audio card documentation delivered
with the system for more detailed connection information.
If the system includes a multimedia keyboard, see the multimedia keyboard documentation
delivered with the system for connection information.
Connecting an External SCSI Device
If your system includes an optional SCSI adapter card, you can connect internal and external
SCSI devices, such as hard disk drives or tape drives, to the system. Internal SCSI devices
included in the system are already connected to the internal channel of the SCSI adapter.
You can connect external devices to the external port on the SCSI adapter.
NOTE The system BIOS will attempt to start the system using a hard disk drive connected to the
bootable SCSI adapter in the lowest PCI slot. To start the system using an external SCSI
hard disk drive, you must ensure the drive’s SCSI adapter is installed lower in slot order than
all other bootable SCSI adapters
The SCSI adapter card is designed to support Ultra Wide SCSI devices. Ultra Wide SCSI
provides a maximum data transfer rate of 40 MB per second. If you connect a non-Ultra
Wide SCSI device to the adapter, data transfer rates are limited to the speed of that device.
CAUTION Using a non-compliant SCSI-1 device with your system may cause your system to stop
working or lead to other unpredictable results.
You can connect up to seven external single-ended SCSI devices to an installed SCSI
adapter. However, the number of drives and length of the cables used to connect the drives
is a factor when using SCSI-1, Fast SCSI (SCSI-2), Ultra SCSI, and Wide Ultra SCSI drives.
Fast SCSI, Ultra SCSI, and Wide Ultra SCSI impose shorter cable restrictions than SCSI-1.
The total length of the SCSI cabling must not exceed the following:
Drives
SCSI-1 Fast SCSI-2 Ultra SCSI Wide Ultra SCSI
1 to 4 19.8 ft
(6 meters)
9.9 ft
(3 meters)
9.9 ft
(3 meters)
9.9 ft
(3 meters)
5 to 7 9.9 ft
(3 meters)
9.9 ft
(3 meters)
4.5 ft
(1.5 meters)
4.5 ft
(1.5 meters)
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