Datapoint 9324 User manual

WARNING: This equipment generates, uses and can
radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, it
may cause interference
to radio communications. It
has been tested and found to comply with the limits
for a Class A computing device pursuant to Subpart J
of Part 15 of FCC Rules, which are designed to
provide reasonable protection against such interference
when operated in a commercial environment.
Operation
of this equipment in a residential area is
likely to cause interference, in which case the user, at
his or her own expense, will be required to take
whatever measures may be required to correct this
interference.
Document No. 61626. Revised 1/84.
Copyright © 1984 by DATAPOINT Corporation. All rights reserved.
The
"D" logo and DATAPOINT are trademarks of DATAPOINT Corporation registered in
the
U.S. Patent and Trademark Office. RMS is a trademark of DATAPOINT corporation.
System features and technical details are subject
to change without notice.

DATAPOINT DISK SUBSYSTEM
9324/9325/9326/9327
Contents
Operating the 9324/9325 Disk Subsytem
........
3
Switches, Indicators, and Controls
.............
5
POWER Switch
..........................
5
Fixed Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . .6
POWER Indicator Light
................
7
WRITE PROTECT Switch
..............
7
READY Indicator Light
................
7
Cartridge Disk Drive . . . . . . . . . . . . . . . . . . . . . .7
DOOR RELEASE Button
...............
8
START/SIDP Switch
..................
9
READY Indicator Light
................
9
LOAD Indicator Light
..................
9
WRITE PROTECT Control
Tab
..............
10
Cartridge Loading
.........................
11
Cartridge Unloading
.......................
13
Maintenance . . . . . . . . . . . . . . . . . . .
..........
15
Cartridge Care . . . . . . . . . . . . . . . . . . . . . . . . . .
15
Disk Unit Care
..........................
16
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9324/25/26/27
OPERATING GUIDE

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9324125126127
OPERAIING
GUIDE
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Operating the 9324/9325 Disk
Subsytem
61626-02
The DATAPOINT® 9324/25/26/27 family of disks
provides data storage for DATAPOINT processors.
Employing Winchester disk technology for high-density
recording, the four models in this series include a
fixed disk and cartridge model, a dual cartridge model,
and two extension cabinets.
The 9325 disk subsystem stores 50 MB of data and
consists
of a controller and two disk drives: a fixed 40
MB disk
and a removable 10 MB disk cartridge. The
removable single-disk cartridge stores
up to 10 MB of
data and is typically used for on-line data storage, for
system back-up, and for transporting data from one
system to another. The 9325 cabinet
is shown in
Figure
1.
The DATAPOINT 9324 model offers 20 MB of
removable data storage. Consisting of two 10 MB
cartridge disk drives and a controller, the 9324
provides on-line data storage with the flexibility of
removable media.
Figure
1. The 9325 Cabinet
9324/25/26/27 OPERATING
GUIDE
3

4
More storage capability may be added to the 9324 or
9325 through the 9326 and 9327 extension cabinets.
The 9326 extension
is
available with one fixed 40 MB
drive, while the 9327 extension contains two fixed 40
MB
drives.
The following instructions describe the operation
of
the 9325 as a typical model. The operation of the
9324, 9326, and 9327 models
is
the same, except for
the following differences: the 9324 contains only those
switches and indicators controlling the removable
cartridges; the 9326 and 9327 models contain only
those switches and indicators controlling fixed disk
operations.
9324/25/26/27 OPERATING
GUIDE
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Switches, Indicators, and Controls
The 9325 has two sets of switches and indicators
controlling the operation of the two disks. Those
associated with the removable cartridge are located on
the left-hand side of the drive's front panel. The fixed
disk's indicators and switches are on the right-hand
side of the front panel. The main power switch, which
controls power to both drives,
is
located on the front
lower right-hand corner of the cabinet. The switches
and indicators on the 9324, 9326 and 9327 are similar.
POWER Switch
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The main POWER switch, located on the lower
right-hand corner of the 9325 front panel,
is
a
two-position rocker switch. Set the switch to the
ON
position to power on both drives in the 9325 and begin
the start-up cycle for the fixed disk
(see
Figure
2).
Before powering off the disks, ensure all tasks using
the 9325 are finished and the LOAD light
is
on,
indicating the cartridge drive
is
ready to load.
To
start
the cartridge unload
cycle,
set the
START/STOP
toggle
switch to STOP and wait until the
IDAD
light comes
on before powering off. This prevents possible damage
to the disk
by
ensuring the read/write mechanism
is
retracted from the disk surface.
If
this sequence
is
not
followed, the cartridge door remains locked and the
cartridge cannot be removed.
To
power off the disks,
set the switch to the
OFF
position.
9324/25/26/27 OPERATING
GUIDE
5

Fixed Disk Drive
Ready Indicator Light
.....__
__
Power Indicator Light
,__
__
Write Protect Switch
----Ready
Indicator LightStart/Stop Toggle Switch
Load Indicator Light
Door Release Button
Removable Cartridge Drive
Figure
2.
The Main Power Switch
NOTE: The disk subsystem and any expansion disk
cabinets connected to it must be powered on before
the processor and powered off after the processor.
Fixed Disk Drive
6
The fixed disk in the 9325 cabinet
is
on the right-hand
side of the unit. The switches and indicators
controlling this drive are shown in Figure 2 and
described in the following paragraphs.
9324/25/26/27 OPERATING GUIDE
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POWER Indicator Light
The red POWER light
is
the rightmost indicator of the
fixed drive. When continuously lit, power
is
on
(it
is
on whenever the power switch
is
on).
If
the light starts
flashing at a fast rate, a faulty power or rotation-speed
condition exists.
If
this occurs, contact DATAPOINT
Customer Service.
WRITE PROTECT Switch
The WRITE PROTECT switch
is
a two-position black
toggle switch located between the two red indicator
lights on the right-hand side of the front panel. When
the toggle switch
is
set to the WRITE position, data
can be transferred to or from the disk.
If
the toggle
switch
is
set to the PROTECT position, data cannot
be written on the disk.
If
an attempt
is
made to write
on the disk while the toggle switch
is
in the PROTECT
position, a disk
FAULT
error message appears on the
system display screen.
READY Indicator Light
The READY light
is
a red indicator located to the left
of the WRITE PROTECT switch. When lit, it
indicates the start-up cycle
is
complete and the drive
is
ready to operate. The READY indicator lights about
45
seconds after the POWER switch
is
set to ON.
Cartridge Disk Drive
6162602
The cartridge disk drive
is
on the left-hand side of the
9325 cabinet. On the 9324 both sides of the cabinet
contain cartridge drives. The switches and indicators
controlling the drive are shown in Figure
2,
and a
detailed view of the cartridge
is
shown in Figure
3.
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GUIDE
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8
0
0
Head Access Door
Figure
3.
The Disk Cartridge (Bottom
View)
The disk cartridge has two important features. The
head access door on the edge opposite the label
is
opened
by
a mechanism in the drive to allow a disk
read or write. Once the disk
is
removed from the
drive, this door should automatically
close.
If
it does
not, call DATAPOINT Customer Service.
Another important feature
is
the WRITE PROTECT
tab. Remove the tab to prevent accidental erasure of
data on the disk and insert the tab to write to the disk
(see
Figure
6).
DOOR RELEASE Button
The DOOR RELEASE button
is
a square black
pushbutton located in the middle of the cartridge
drive. This button opens the drive door for loading or
unloading cartridges. While disk operations are
0
9324/25/26/27 OPERATING
GUIDE
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