IBM 865741Y Handbook - Page 90

Types of Cables

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Types of Cables Your server uses cables to connect IDE and SCSI drives to the power supply and system board. Each cable connector is designed to fit a corresponding drive connector. The following cables are provided: Four-wire power cables connect most drives to the power supply. At the end of these cables are plastic connectors that attach to different drives; these connectors vary in size. Also, certain power cables attach to the system board. Flat signal cables for connecting IDE and diskette drives to the system board. Signal cables are sometimes called ribbon cables. The following ribbon signal cables come with your server to connect IDE and diskette drives: - The IDE signal cable has three connectors. One of these connectors is attached to the CD-ROM drive, one is a spare, and the third attaches to the primary IDE connector on the system board. - One signal cable has one connector for attaching the diskette drive to the diskette-drive connector on the system board. A flat SCSI signal cable for connecting devices to the SCSI adapter. Since your server is equipped with an UltraSCSI controller, it has a ribbon cable that is connected to the internal SCSI hard disk drive. One end of this cable is connected to the 68-pin, Channel A SCSI connector on the system board. This cable provides four connectors for attaching other internal SCSI devices. For more information about SCSI devices, see "SCSI Drives" on page 74. Note: To locate connectors on the system board, see "System Board Illustration" on page 203. 72 Netfinity 3500 User's Handbook

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Types of Cables
Your server uses cables to connect IDE and SCSI drives to the
power supply and system board.
Each cable connector is designed
to fit a corresponding drive connector.
The following cables are
provided:
±
Four-wire
power cables
connect most drives to the power supply.
At the end of these cables are plastic connectors that attach to
different drives; these connectors vary in size.
Also, certain
power cables attach to the system board.
±
Flat
signal cables
for connecting IDE and diskette drives to the
system board.
Signal cables are sometimes called
ribbon cables
.
The following ribbon signal cables come with your server to
connect IDE and diskette drives:
–
The IDE signal cable has three connectors.
One of these
connectors is attached to the CD-ROM drive, one is a spare,
and the third attaches to the primary IDE connector on the
system board.
–
One signal cable has one connector for attaching the diskette
drive to the diskette-drive connector on the system board.
±
A flat SCSI
signal cable
for connecting devices to the SCSI
adapter.
Since your server is equipped with an UltraSCSI controller, it has a
ribbon cable that is connected to the internal SCSI hard disk drive.
One end of this cable is connected to the 68-pin, Channel A SCSI
connector on the system board.
This cable provides four connectors
for attaching other internal SCSI devices.
For more information about SCSI devices, see “SCSI Drives” on
page 74.
Note:
To locate connectors on the system board, see “System Board
Illustration” on page
203.
72
Netfinity 3500 User's Handbook