Appendix A: Master Controller Features
Drive Indicators
The fixed-disk drive access indicator (located inside the door on the left) lights up when a fixed-disk drive is in use.
The diskette drive access indicator lights up when the drive is in use.
Disk Drive Requirements and Capacities
The Master Controller uses diskettes and a hard disk drive to store information. The 3.5-inch diskettes are supported with IS-III.
For the Master Controller II+, fixed-disk drives of 100MB and 200MB storage capacity are available.
For the Master Controller III, fixed-disk drives of 200 MB and 500 MB storage capacity are available.
Diskette and fixed-disk drives are used to read and write to disks. Fixed-disk media are permanently installed in fixed-disk drives and cannot be removed. Diskettes are inserted and removed as needed. The diskette drive has a release button; press it to eject the diskette.
Diskettes
Preserve the life of diskettes by observing the following guidelines:
■Do not put heavy objects on the diskettes.
■Store diskettes in a temperature range between 50 and 125 degrees Fahrenheit (10 and 51 degrees Celsius).
■Keep diskettes away from magnetic fields.
Write-protection prevents inadvertent writing or deleting of data on diskettes. If a diskette is write-protected, the diskette drive cannot write to it. To write-protect a diskette, turn it over and slide the write-protect tab so the hole is visible.
