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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2
9324125126127
OPERAIING
GUIDE
61626-02

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
61626-02

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
61626-02
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
61626-02

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.
9324/25/26/27 OPERATING
GUIDE
7

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
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GUIDE
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61626-02
occurring, the button automatically locks to prevent
accidental door opening.
To remove the cartridge after disk operations have
ended and the cartridge disk
is spun down, push the
DOOR RELEASE button, then press the cartridge
back until it unlatches and pops out.
NOTE: Do not attempt to open the door unless the
WAD indicator is continuously lit.
START/STOP Switch
The START/SlOP switch is a two-position black
toggle switch located between two-red indicator lights
on the left-hand side of the front panel. With a
cartridge in place, set the toggle switch to the
START
position to begin the start-up cycle. Set the toggle
switch to
SlOP to begin the cartridge unloading cycle
and to spin down the cartridge disk.
NOTE: The complete start-up cycle takes about 90
seconds. During this
cycle, the air in the drive is
circulated through a filter system to remove dust and
particles.
READY Indicator Light
The READY light is a square-red indicator located on
the far left-hand side of the front panel. When lit, the
start-up cycle
is complete and the drive is ready to
operate. The READY indicator lights about 90
seconds after the STARI7S10P switch
is set to
START.
LOAD Indicator Light
The WAD light is the red indicator located to the
right of the STARI7S10P toggle switch on the left side
of the front panel. After a cartridge is inserted and the
STAR17S10P toggle switch
is set to START, the
9324/25/26/27 OPERATING
GUIDE 9

WAD
light flashes twice per second. After 60
seconds, this light stops flashing for a moment.
If
the
disk stops spinning, wait
10
seconds for spinning to
resume. The
WAD
light then flashes for about 30
seconds. The start-up cycle
is
in progress (during
normal operations this light
is
off).
When the
START/STOP
toggle switch
is
set to
STOP,
the
WAD
light again flashes twice per second until it
glows
steadily, indicating the cartridge may be
removed.
If
the
WAD
light flashes rapidly, a power
or rotation-speed fault
is
indicated.
If
this occurs, call
DATAPOINT Customer Service.
WRITE PROTECT Control Tab
10
Included with each cartridge
is
an insertable tab
that
allows writing or prevents writing to the disk. The
WRITE PROTECT tab
is
located on the right-hand
edge of the cartridge, opposite the identification label.
To
WRITE PROTECT the cartridge, remove the tab -
this prevents accidental writing on the disk.
To
write
on the disk, insert the WRITE PROTECT tab in its
slot
(see
Figure
4).
Write Protect
Tab
Figure
4.
Cartridge
WRITE
PROTECT Slot and
Tab
9324125126127
OPERATING
GUIDE
61626-02

Cartridge Loading
When loading the cartridge, handle the disk carefully
to keep it in top working order. The disk weighs
approximately
1.6 pounds.
Before loading a cartridge, ensure all plugs and cords
are secure on both the processor and the disk drive. If
power is interrupted while the drive is operating, the
door of the disk drive remains locked until correct
power
is restored. To load the cartridge, take the
following steps:
1. Power on the disk drive. Wait until the POWER
indicator lights before proceeding.
2. Grasp the front of the cartridge so the WRITE
PROTECT plug is on the end of the cartridge
opposite your hand. The front of
the cartridge is
the edge with the DATAPOINT label (see Figure 4).
61626-02
3. Hold the cartridge right side up (the bottom of the
cartridge has a circular hole in the center which
should face down).
4. Set the STAR17S1DP toggle switch to S1DP and
wait for the I.DAD light to glow steadily.
5. Press the DOOR RELEASE button, open the drive
door, and carefully insert the cartridge into the
drive
(see Figure 5).
6. Push the cartridge gently into the drive against
spring pressure until the cartridge latches in place.
Then slowly close the cartridge drive door.
7. Set the
STAR17S1DP toggle switch on the front
panel to
START. When the WAD light stops
flashing and the READY indicator lights, the disk
is
ready to use. Once the STAR'.17S1DP toggle switch
is set to STARf, the I.DAD light flashes in groups
9324/25/26/27 OPERATING
GUIDE
11

12
Of
two
for
60
SeCQnds,
!JaUSes,
then
flashes
again
for
30
seconds.
During
this
time,
if
the
disk
stops
spinning,
wait
a
few
seconds
and
it
should
start
spinning •sain
(this
is
part of nonnaJ
disk
Operations).
After
90
seconds
the
READY
indicator
should light
and
the
disk
cartridge
is
ready
to
use
Step
1:
Power
On
Step 2:
Set Start/Stop
switch
to
Stop
Step
3,
Ahe,
load
light
gloWs
conunuous1y, P"'8s
Door
Re/ease button
Step
4,
Gently
push can,;dge
;nro place
and
close
cartridge door
Step 5:
Set Start/Stop switch
to
Start
Figure
5.
Inserting
the
Cartridge
9324125126127
OPERATING
GUIDE
61626-02

Cartridge Unloading
61626·02
Before removing a cartridge, ensure all tasks using the
9325 are complete.
If
no data transfers are occurring,
take the following steps to unload the cartridge:
1.
Set the START/S1DP toggle switch on the front
panel to S1DP. The
IDAD
indicator flashes for
about
45
seconds.
2.
Once the
IDAD
indicator
glows
continuously, push
the DOOR RELEASE button to open the door. Press
the cartridge
(still
in the drive) back until it
unlatches; this ejects the cartridge about one-third
of the
way.
Grasp the front edge of the cartridge
and gently pull it free
(see
Figure
6).
3.
Place the cartridge in its dust jacket.
4.
Load another cartridge or completely close the door
of the drive slot to safeguard the disk drive.
9324/25/26/27 OPERATING
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13

14
Step
1:
Set Start/Stop switch
to
Stop
Step 2:
Wa;t
'°'
load
Ught
to
g/cw
conunuous/y,
push Door Re/ease button
Step
3:
Press cartridge
in
to
unlatch
Step
4:
Gently remove cartridge
NOTE:
If
the door
of
the drive slot does
not
close
Properly, open it and remove the cartridge_ Inspect the
cartridge and the door;
if
they appear normal, try
loading the cartridge again. If the cartridge or drive
is
defective, call
DATAPQJNT
Customer Service.
Figure
6.
Removing the Cartridge
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OPERATING
GUIDE
61626-02

Maintenance
Like other machines, the 9325 Disk Drive needs
occasional cleaning. Perform preventive maintenance
on a regular schedule (monthly). Both the removable
disk and the drive unit should be kept in a normal
environment.
Cartridge Care
6162(1
(),
1
The disk cartridge
is
a storage device and should be
treated with care.
Loss
of stored information could
occur if the cartridge
is
exposed to harmful
environments. Protect cartridges
as
follows:
• A cartridge dust jacket
is
provided
as
additional
protection against contamination from handling or
storage. When not in
use,
the cartridge should be
kept in the jacket
in
an upright position.
• Do not expose the cartridge to heat, magnetic
devices, or liquids. Cartridges should be stored at
normal room temperature.
• The 8 in. disk cartridge includes a plastic housing
with a head access door. When the cartridge
is
removed from the drive, this door should
automatically seal.
If
it does not, call DATAPOINT
Customer Service. Never try to open the head access
door
by
hand or disk damage may occur.
•
To
remove dust
or
other foreign material from the
surface of the cartridge use a clean dry cloth.
•
If
the cartridge
is
cooler or warmer
than
the drive, it
should
be
left in the same room as the drive for
at
least 2 hours before
use.
This prevents errors due to
a difference in temperature.
9324/25/26/27 OPERATING
GUIDE
15

Disk Unit Care
16
To
ensure continued reliability of the disk drive, keep
the outside
of
the cabinet clean.
To
clean the cabinet,
use a mild detergent and damp cloth. Before cleaning,
remove the cartridge, place it in the dust jacket, and
then power off the processor and disk drive.
Avoid getting any liquids inside the cabinet or
on
the
cartridge
as
this may cause disk damage. Preventive
maintenance, performed
by
the operator,
is
not
intended to replace regular scheduled maintenance
by
DATAPOINT Customer Service.
To
perform preventive maintenance, follow the
routine described below for each disk drive:
1.
Remove any cartridge from its drive slot.
2.
Power off the processor.
3.
Turn the disk drive power switches off.
4.
Use a vacuum cleaner to remove dust and other
debris from the drive cabinet exterior.
5.
Use a soft bristle brush with a mixture
of
mild
detergent and water to remove foreign material or
stains from the surface of the cabinet. Clean
carefully around the drive slot door, air vents, and
control panels to avoid spilling liquid inside the
drive.
6. Use a dry cloth to remove dust from the drive slot,
air vents, switches, and indicators.
7. Do not attempt to clean inside the removable
cartridge slot as damage to the cartridge drive may
occur.
9324125126127
OPERATING
GUIDE

6162<1 IP
CAUTION: If a metal object or liquid gets inside the
9325 cabinet, immediately
turn the main power switch
off and call DATAPOINT Customer Service. Do not
turn power back
on until the disk is checked. Spilling
anything in the drives may cause damage to the disks.
9324/25/26/27 OPERATING
GUIDE
17