Percom Data AT-88 User manual
(
IJATA
J
CORPORATION
IMPORTANT NOTICES
All
material in this manual is copyrighted
by
PERCOM DATA COMPANY,
INC. No portion of it may be copied or reproduced in any manner without
the written permission of PERCOM DATA COMPANY, INC.
Although the information contained
in
this publication has been thorough-
ly checked for accuracy and reliability, PERCOM DATA COMPANY, INC.
shall have
no
liability or responsibility to a customer or any other person
or entity with respect to any liability, loss or damage caused or alleged to
be caused directly or indirectly by products or programs sold by
PERCOM DATA COMPANY, INC., including but not limited to any inter-
ruption of service, loss of business or anticipatory profits or consequential
damages resulting from the use or operation of such products or pro-
grams. Furthermore, PERCOM DATA COMPANY, INC. does not repre-
sent the described equipment or programs as suitable for any purpose
and does not assume any liability arising out of the application or use of
any
circuit or program described herein.
PEinCOM DATA COMPANY, INC. reserves the right to make changes to
amy
prodl!Jcts
or specifications described herein without notice.
Manual
Number
050-1290-001
PERCOMDATA
AT
-88
DISK DRIVES
FOR THE
ATARI
COMPUTER
Percom
Data
Company
Inc.
11220
Pagemill
Road
Texas
75243
STATEMENT
OF
LIMITED
WARRANTY
For
a
period
of
90
days
from
the
date
of
delivery,
PERCOM
DATA
CO.,
INC.
warrants
to
the
original
purchaser
that
the
computing
equipment
described
herein
shall
be
free
from
defects
in
material
and
workmanship
under
normal
use
and
service.
During
this
period,
if
a
defect
should
occur,
the
equipment
must
be
returned
to
the
PERCOM
DATA
CO
.
Service
Facility
at
the
address
on
page
i,
the
full
title
page.
The
purchaser
must
prepay
all
shipping
and
insurance
charges,
and
supp
l y
proof
of
purchase
from
PERCOM
DATA
DATA
CO.
or
an
authorized
PERCOM
DATA
dealer
or
distributor.
Purchaser
0s
sole
and
exclusive
remedy
in
the
event
of
defect
is
expressly
limited
to
the
correction
of
the
defect
by
adjustment,
repair
or
replacement
at
PERCOM
DATA
0s
election
and
sole
expense
,
except
there
shall
be
no
obligation
to
replace
or
repair
items
which
by
their
nature
are
e x
pendable.
This
warranty
is
voided
if
the
unit
has
been
subjected
to
improper
or
abnormal
use,
or
if
the
unit
is
altered
or
modified.
No
representation
or
other
affirmation
of
fact,
including,
but
not
limited
to,
statements
regarding
capacity,
suitability
for
use,
or
performance
of
the
equipment,
shall
be
deemed
to
be
a
warranty
or
representation
by
PERCOM
DATA
CO.,
INC.,
for
any
purpose,
nor
give
rise
to
any
liability
or
obligation
of
PERCOM
DATA
CO.,
INC.
whatsoever.
EXCEPT
AS
SPECIFICALLY
PROVIDED
IN
THIS
AGREEMENT , - THERE ARE
NO
OTHER
WARRANTIES,
EXPRESSED
OR
IMPLIED
INCLUDING,
BUT
NOT
LIMITED
TO
,
ANY
IMPLIED
WARRANTIES
OF
MERCHANTABILITY
OR
FITNESS
FOR A
PARTICULAR
PURPOSE
AND
IN
NO
EVENT SHALL
PERCOM
DATA
CO.,
INC.
,
BE
LIABLE
FOR LOSS
OF
PROFITS
OR
BENEFITS,
INDIRECT,
SPECIAL,
CONSEQUENTIAL
OR
OTHER
SIMILAR
DAMAGES
ARISING
OUT
OF
ANY
BREACH
OF
THIS
WARRANTY
OR
OTHERWISE.
COPYRIGHT
1982
PERCOM
DATA
CORPORATION
ALL
RIGHTS
RESERVED
For
the
name
and
location
of
Percom
Data
Retailers
call
toll-free
1-800-527-1222
(outside
of
Texas)
or
(214)
340-7081
(within
Texas).
AT
-
88
is
a
trademark
of
Percom
Data
Corporation.
OS/A+
is
a
trademark
of
Optimized
Systems
Software,
Inc.
Atari,
Atari
800,
Atari
400
,
Atari
810,
and
Atari
DOS
2.0S
are
trademarks
ii
RADIO FREQUENCY
INTERFERENCE
PROTECTION
This
equipment
generates
and
uses
radio
frequency
energy.
If
not
installed
and
used
properly,
that
is,
in
strict
accordance
with
Percom
Data
installation
and
operation
instructions,
it
may
cause
interference
to
radio
and
television
reception.
There
is
no
guarantee,
however,
that
interference
will
not
occur
in
a
particular
installation.
If
this
equipment
does
cause
interference
to
radio
or
television
reception
which
can
be
determined
by
turning
the
equipment
off
and
on
- - we
encourage
you
to
try
to
correct
the
interference
by
one
or
more
of
the
following
measures:
*
*
*
*
reorient
the
receiving
antenna
relocate
the
computer
with
respect
to
the
receiver
move
the
computer
away
from
the
receiver
plug
the
computer
into
a
different
outlet
so
that
the
computer
and
receiver
are
on
different
branch
circuits
If
necessary,
consult
the
dealer
or
an
experienced
radio/television
technician
for
additional
suggestions.
The
user
may
find
the
following
booklet
prepared
by
the
Federal
Communications
Commission
helpful:
"How
to
Identify
and
Resolve
Radio-TV
Interference
Problems".
This
booklet
is
available
from
the
United
States
Government
Printing
Office,
Washington,
DC
20402,
Stock
No.
004-000-0035-4.
iii
CHAPTER ONE -INTRODUCTION
1-1
AT-88
Disk
Drives
1 - 2
Specifications
1 - 2
Accessories
1 - 3
System
Requirements
1-3
Unpacking
1 - 3 A
Final
Word
CHAPTER TWO -CONFIGURATIONS
2 - 1
System
A
2-2
System
B
2-3
System
c
2-4
System
D
2 - 5
System
E
2-6
System
F
2-7
System
G
2-8
Syst
e m H
2 - 9
System
I
2 -
10
System
J
2 -
11
System
K
2 -
12
System
L
CHAPTER
THREE-
SETTING UP
3-1
Build
System
A
3 - 3
Build
System
B
or
System
c
3-6
Build
System
D
or
System
E
3 -
10
Build
System
F
or
System
G
3 -
15
Build
System
H
3-18
Build
system
I
or
System
J
3-22
Build
System
K
or
System
L
CHAPTER
FO
UR - CHECKOUT
4 - 1
Is
The
Syste
m
Cabled?
4-
1
Get
Familiar
with
the
Diskettes
4-2
What
Happens
During
the
Checkout?
4 - 2
The
C
heckout
4 - 2
Check
Out
the
Controller
Drive
4-4
You
Are
Fi
nished
If
• • .
4- 4
Check
Out
the
Add
-On
Drives
APPENDIX
A-1
Nothing
Happened
INTRODUCTION
CHAPTER
ONE
1-1
AT-88
Disk
Drives
1-2
Specifications
1-2
Accessories
1-3
System
Requirements
1-3
Unpacking
1-3
A
Final
Word
Chapter
One
introduces you to
Percont
Data
Disk Drives.
AT
-88 Disk Drives
Congratulations
on
your
purchase
of
a
Percom
Data
mini
-
disk
driv
e
for
your
Atari
computer.
In
addition
to
being
the
highest
quality
floppy
disk
drives
available,
your
Percom
Data
diskette
drives
include
added
features
not
found
in
the
diskette
drives
of
other
manufacturers:
•
You
can
connect
your
Percom
Data
Controller
Drive
directly
to
your
computer.
•
Your
Percom
Data
Controller
Drive
includes
a
versatile
four
-
drive
controller;
this
means
you
can
connect
as
many
as
three
additional
low-cost
Percom
Data
Add-On
Drives.
•
Your
Percom
Data
Drives
operate
in
Single-Density
and
can
use
one
of
two
operating
systems:
the
included
OS/A+
2.00
or
the
Atari
DOS
2.0S.
1-1
Specifications
Media
Typical Media Life
Storage Capacity (Formatted):
Single Density
Track Den
si
ty
Head Seek Time (track to track)
Data Transfer Rate
Start I Stop Time
Operating Temperature
Opera ting Relative Humidity
Head Life (normal use )
Input Po
wer
-Contr
ol
ler Drive
Domestic Models
Foreign Models
Input
Power
-Add-On Drive
Domestic Models
Foreign Models
Accessories
51
/
4-
inch di skette
3 million passes /track
88,0
00 bytes I side
48 tracks I inch
20 milliseconds
19
,
200
bits I second
I second (max)
20% to 80% (non-condensing)
20,000
hours
105-125 V ,
1.
0 A (max), 50-
60Hz
210-250 V ,
0.5
A (max) , 50-
60Hz
105 -125 V,
0.5
A (max),
50-60Hz
2 10-250 V,
0.25
A (max) ,
50-60Hz
Percom
Data
manufactures
a
Data/Clock
separator
circuit;
the
SEPARATOR
plugs
into
an
Atari
810
Disk
Drive
and
virtually
eliminates
problems
associated
with
reading
diskettes
on
the
810
drive.
A
three-dri
ve
interconne
c t
in
g
cable
for
AT-88
Add-On
Driv
es
is
also
a
va
ilable
fro
m
Percom
Data.
For
more
information
about
Percom
Data
products
for
your
Atari
computer
visit
or
telephone
1-800-527-1222
(outside
of
Texas)
or
(214)
340-7081
(within
Texas)
for
an
authorized
Percom
Data
retailer.
l-2
System Requirements
To
use
Percom
Data
AT-88
drives
with
your
Atari
computer,
you
will
need
as
a
minimum
the
following:
• An
Atari
800
or
an
Atari
400
comput
e r
with
34
Kbytes
of
RAM
and
compatible
video
display
system.
•
Operating
system
OS/A+
2.00
or
Atari
DOS
2.0S
and
the
appropriate
manual.
• An
interconnecting
cable
if
mor
e t
han
one
add-on
drive
is
used.
• Two
blank
diskettes.
Unpacking
As
you
unpack
your
Percom
Data
AT-88
Controller
Drive,
verify
that
the
following
it
ems
are
included:
• An
AT-88
Controller
Drive
(one
drive
in
cabinet),
an
AT-88
Controller
Drive
with
one
AT-88
Add-On
Drive
(two
drives
in
cabinet),
or
an
AT-88
Add-On
Drive
(one
drive
in
cabinet).
• A
Data
Cable
for
connecti
ng
the
Controller
Drive
to
your
computer
or
810
Disk
Drive,
or
a
flat
cable
to
connect
your
Add-On
Drive
to
the
Controller
Drive.
A
cross
section
of
a
data
cable
resembles
a
circular
shape.
A
flat
cable
consists
of
insulated
conductors
that
lie
side
by
side;
therefore,
the
cable
looks
flat.
• A
Percom
Data
AT-88
Disk
Drive
owner's
manual
(this
Users
Manual).
•
Operating
system
OS/A+
2.00
and
an
OS/A+
Manual.
Your
Percom
Data
AT-88
add-on
drives
(if
purchased)
are
shipped
assembled,
and
include
the
drive
mechanism
and
power
supply
in
an
enclosure.
1-3
A Final
VVord
Please
be
sure
your
computer
is
operating
prop
e
rly
before
attempting
to
expand
it
with
a
disk
drive
system
or
other
peripheral
devices.
Adding
new
devices
to
a
with
a
problem
may
furth
er
complicate
the
problem
and
make
troubleshooting
more
difficult.
Every
has
been
mad
e
to
ensure
that
this
manual
accurately
documents
your
Percom
Data
AT-88
disk
drives.
We
will,
however,
be
continuously
improving
and
upd
a
ting
both
software
and
hardware,
and
therefor
e
Percoill
Data
Company,
Inc.,
cannot
absolutely
guarantee
the
accuracy
of
this
publication
CONFIGURATIONS
CHAPTER TWO
2-l
System
A
2-2
System
B
2-3
System
c
2-4
System
D
2
-5
System
E
2-6
System
F
2-7
System
G
2-8
System
H
2-9
System
I
2-10
System
J
2-11
System
K
2-12
System
L
Chapter
Two illustrates twelve
possible drive systent
configurations: Systent A
through
Systent
L.
Decide which systent you have
and
then
go
to
the
appropriate
page
in
Chapter
Three.
System A
If
you
have
a
computer
and
one
Percom
Data
Controller
Drive,
you
have
System
A
(one
drive).
Computer
Please
go
to
page
3-1.
CD
0
:a
0
Percom
Data
Controller
Drive
2
-1
System B
If
you
have
a
computer
and
one
Percom
Data
Dual
Drive
Unit
that
contains
a
Controller
Drive
and
an
Add-On
Drive,
you
have
System
B
(two
drives).
Computer
Please
go
to
page
3-3.
2-2
0 0
Percom
Data
Dual
Drive
System C
If
you
have
a
computer,
one
Percom
Data
Controller
Drive,
and
one
Percom
Data
Add-On
Drive,
you
have
System
C
(two
drives).
( D ( )
0
0
0 0
Computer
Per
com
Data
Per
com
Data
Controller
Drive
Add-On
Drive
Please
go
to
page
3-3.
2 - 3
System D
If
you
have
a
computer,
one
Percom
Data
Dual
Drive
Unit
that
contains
a
Controller
Drive
and
an
Add-On
Drive,
and
one
Data
Add-On
Drive,
you
have
System
D
(three
drives).
Computer
Please
go
to
page
3-6.
·
2-4
0 0
Percom
Data
Dual
Drive
0
Percom
Data
Add-On
Drive
System E
If
you
have
a
computer,
·
one
Peicom
Data
Controller
Drive,
and
two
Percom
Data
Add-On
Drives,
you
have
System
E
(three
drives).
Computer
Please
go
to
page
3-6.
0
0
Percom
Data
Controller
Drive
0
Percom
Data
Add-On
Drives
0
2-5
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