Vector 4 - Page 128

VECTOR 4
TECHNICAL INFORMATION
SECTION VIII - OVERVIEW OF THE DISK DRIVE
| SYSTEM
Summary: The SBC can be configured to use two floppy drives (40/20)
or one floppy drive and one hard disk drive (40/30). This section gives
an overview of the these drives.
The hard disk drive requires two signal/data cables while the floppy drive uses one
J6-conductor ribbon cable. Exhibit II-32 shows how these interconnecting lines
relate to the other interconnecting lines used by the Vector 4. Refer to the
DUAL-MODE DISK CONTROLLER MANUAL for. a description of these conductors.
The hard disk drive consists of two 5 1/4 disks which are accessed using winchester
technology. This includes a sealed environment for the disks and heads. For
detailed information on this unit see the ST506 MICROWINCHESTER OEM MANUAL
(7200-1610).
The floppy disk drive uses a 5 1/4 inch diskette. With the use of the Extended
CP/M Operating System and the Dual-Mode Disk Controller Board this floppy can be
read/write in a single-sided (with double density) or double-sided (with double
density)
format.
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The 5 1/4 inch floppy drive has two PCBs. One is used for the disk drive logic
functions while the other supports the servo operation. A detailed description of
these PCBs along with other relevant disk drive information is found in the 5-1/4"
FLOPPY DISK DRIVE-TECHNICAL INFORMATION MANUAL (7200-1601).
09-01-32
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7200-0001
II8-1