NEC SP B-Series manual Diskette Drive Signal Cable, IDE Signal Cables

Diskette Drive Signal Cable

A two-connector diskette drive signal cable comes attached to the system board and to the standard 1.44-MB diskette drive.

Depending on your system, installation of an accessible device, such as a tape backup unit, may require the replacement of the existing diskette drive signal cable with a three-connector cable. Connect an optional 5 1/4-inch accessible device to the middle connector on the three-connector diskette drive signal cable.

The colored edge of the cable goes to pin 1 on the cable connector. Align the red edge of the cable with pin 1 (the notched end) on the drive connector.

The following figure shows a three-connector diskette drive signal cable.

Diskette Drive Signal Cable

A– Connects to 1.44-MB Diskette Drive

B– Connects to Optional Tape Backup Unit

C– Connects to System Board

IDE Signal Cables

Each system comes with a three-connector IDE interface cable attached to the primary IDE connector and the installed hard drive. A second IDE cable connects to the CD-ROM drive and to the secondary IDE connector. In some systems, a Zip drive also comes attached to the primary IDE cable.

The following figure shows a typical three-connector IDE cable. If the IDE cable is not keyed with a connector tab, align the colored edge of the cable with the pin 1 side of the drive connector.

3-14 Option Installation