Terak 8510/a User manual

tErak
MODEL 8510/a
INSTALLATION INSTRUCTIONS
TERAK Publication Number 50-0000-001
REV B
COPYRIGHT (C) TERAK CORPORATION 1979
14405 NORTH SCOTTSDALE ROAD • SCOTTSDALE, ARIZONA 85254 • [phone]

The TERAK Model 8510 Data Processor is a self-contained, disk based
minicomputer system. Specific design features include compactness, %
ease of operation and low operating/maintenance costs. The following
information is intended as a general guide to the characteristics,
operation and maintenance. For detailed specifications refer to
software and hardware technical manuals and user applications/operator
instruction manuals.
GENERAL: The 8510 operates on standard line voltages (105-120V/60Hz)
and comes equipped with a 71 line cord with molded plugs at both ends.
The line cord must always be plugged into a grounded A.C. receptacle.
Although it is recommended that the power on/off switch located on the
front panel be in the "off11 position whenever the line cord is being
connected/disconnected, the 8510 is designed such that it will not be
damaged nor will data be destroyed on a disk should the unit be connected
or disconnected with the power switch in the "on" position. (NOTE: If
data is being written onto the disk when power is removed from the
system, the data on that sector of the disk can be lost. The formatting
data on the disk will not, however, be destroyed.) Any power interruption
will cause an orderly shut-down of the system electronics and the system
will automatically restart upon restoration of power.
The 8510 does not require any special operating environment and is
designed for operation in most environments where people are comfortable.
Excessive temperature, humidity and dust laden air can be harmful.
Specific ranges of environmental operating limits are covered under
the technical specifications.
The 8510 is designed using low-power components to reduce the operating
cost and keep component temperatures to a minimum, assuring their
stability and longevity of service. The entire unit consumes less than
100 watts of power during operation. Even so, to minimize component
damaging heat build-up, the entire inner chassis and front panel are
constructed to provide flow-through ventilation around and over all
components from the quiet, efficient ventilating fan mounted at the
rear of the chassis. This fan completely replaces the air inside the
unit more than 35 times each minute. To prohibit the introduction of
forfegn material, and as an added safety factor, the fan mounting
supports a "fine particle" filter. The filter is externally removable
permitting cleaning and replacement without internal access to the unit.
The filter should be removed periodically and gently washed in warm
water. Make certain that the filter is completely dry before replacing.
Conditions will vary depending upon location of the unit and the environ
ment, but filter cleaning is recommended once every three months.
The 8510, though small and portable, is a delicate piece of electronic
equipment and should be treated accrodingly. Do not expose to extremes
of heat or cold and protect it against moisture and dust. Do not
it to excessive shock. A damp rag should be used lightly on
-1-

outside paint surfaces if cleaning is necessary.
TERMINAL CONNECTIONS: The Model 8510 Serial Interface Connector Panel
provides for interface through EIA Standard RS-232-C or 20ma current
loop. Both female and male RS-232-C connectors are provided to enable
the machine to operate as data communications equipment or data terminal
equipment as defined in the Electronic Industries Assoication (EIA)
RS-232-C Standards. The panel aslo contains two sets of eight miniature
switches to select baud rates, parity and other features. Fourteen
rates are selectable from 50 to 19,200 baud.
ADDITIONAL DISK DRIVES: The Model 8510 is provided with a disk drive
external interface board (EIB) as standard equipment. This EIB allows
addition of a Model 8512 Flexible Disk Subsystem without any internal
modifications to the 8510. Up to three 8512's can be added to the system
merely by plugging in an interconnect cable from the 8510 to an 8512 and
then from 8512 to 8512. All power on/off and control signals for the
8512's are controlled from the 8510. The system terminator should be
left in place on the 8510 disk drive EIB.
OPERATING INSTRUCTIONS: The Model 8510 Data Processor has been designed
for ease of operation even by persons with no prior computer training.
The keyboard/display terminal connection is straight-forward and the
operator need only turn the power switch on to begin operation.
NOTE: Prior to beginning operation, the operator should read the section
of this manual dealing with DISKETTE HANDLING to insure familiarity with
proper loading and unloading procedures.
1. Connect the 8532-1 Display Monitor to the Video EIB Monitor Connect
by means of the Video cable.(See Figure 1 for location of connectors.)
2. Connect the 8532-2 Keyboard to the Video EIB Keyboard Connector.
3. Connect any auxiliary keyboard/display terminal printer, or modem
to the Serial Interface EIB. Select baud rate, parity and other
features to insure compatibility with the terminal. (See figure 2.)
4. Connect the A.C. power cable to the receptacle at the rear of the
8510 chassis and to a grounded A.C. outlet, with voltage and fre
quency matching the chassis I.D. label.
5. Connect the A.C. power cable to the receptacle at the rear of the
8532-1 Display Monitor, with voltage and frequency matching the
chassis I.D. label .
6. Press the top of the power on/off switch to the "on" position.
7. Open the disk drive door and insert the System Acceptance Test
Diskette or other system diskette, with label side up, index hole
closest to the operator until a 'click' is heard, and the diskette
is not ejected. (DO NOT PRESS HARD ENOUGH TO BUCKLE OR WRINKLE THE
DISKETTE.)
8. Immediately upon closing the disk drive door the system will boot
strap into the operating system of the diskette.
-2-

NOTE: Should the system fail to bootstrap or should you wish to
re-bootstrap the system, momentarily press the top of the
power on/off switch. The system is reset when the switch
is pressed and re-bootstrapped when the switch is released,
This can be accomplished in a quick press/release motion.
DISKETTE HANDLING
The Diskette consists of the flexible disk encased in a plastic
jacket. When not in use the Diskette is always stored in a
protective envelope. The storage envelope provides protection from
dust and contaminants which can cause damage to the Diskette surface
and loss or distortion of data.
To protect the Diskette, these precautionary procedures should be
followed:
1. Return the Diskette to its storage envelope whenever
it is removed from the disk drive.
2. Store Diskettes vertically.
3. Keep Diskettes away from magnetic fields and from
ferromagnetic materials which might become magnetized.
Strong magnetic fields can destroy recorded data on the
Diskette, and can remove the Preformatting on the diskette;
such that it cannot store data.
4
- Diskettes
such that it cannot store data.
Replace storage envelopes when they become worn, cracked
or distorted. Envelopes are designed to protect the
Diskettes.
Do not write on the Diskette with a lead pencil or
ball-point pen. Use a felt tip pen.
Use labels with a non permanent adhesive. Never attempt
to remove labels which use a permanent adhesive.
Do not smoke while handling the Diskette. Heat and
contamination from a carelessly dropped ash can
damage the Diskette.
Do not expose Diskettes to heat or sunlight. The
read/write head cannot properly track a warped disk.
Do not touch or attempt to clean the disk surface.
Abrasions may cause loss of stored data.
-3-

DISKETTE LOADING AND UNLOADING
CAUTION:
To avoid possible damage to the Diskette,
insure that the Diskette is secured in
the unit before closing the disk drive door.
Slide the Diskette into the open mouth of
the drive until a "click11 sound is heard.
Release the Diskette to ensure that it does
not eject.
These procedures should be followed when loading and unloading a
Diskette:
TO LOAD
1. Always insure that unit is turned on before inserting
a Diskette.
2. Open the drive door by lifting up using the "lip11 on
the door.
3. Carefully remove the Diskette from its storage envelope.
4. Insert the Diskette with the label facing up and the
index hole closest to the operator (see Figure 1).
5. Slide the Diskette into the open mouth of the drive
until a "click" sound is heard. Then release the
Diskette and ensure that it does not eject.
6. Close the drive door gently.
TO UNLOAD
1. Depress the disk release control located under the
disk drive door.
2. Remove the Diskette.
3. Return the Diskette to its protective storage envelope.
4. Gently close the door (unless other Diskettes are to
be loaded).
-4-

AIR FILTER
(CLEAN PERIODICALLY)
DISK DRIVE
TERMINATOR
(DO NOT-MOVE)
A.C. POWER
RECEPTICLE
DISK DRIVE EIB
DAISY CHAIN CABLE
CONNECTOR
FLOPPY DISK EIB
SPARE EIB
SERIAL INTERFACE EIB
IDEO EIB
VIDEO EIB MONITOR
CABLE CONNECTOR
VIDEO EIB KEYBOARD
CABLE CONNECTOR
SYSTEM I.D. LABEL
(CHECK FOR A.C. POWER VOLTAGE
AND FREQUENCY REQUIREMENTS)
FIGURE 1
SERIAL INTERFACE EIB SWITCHES
Setting
OFF OFF
ON OFF
ON OFF
OFF OFF
ON ON
ON ON
OFF ON
OFF ON
ON ON
ON OFF
OFF OFF
OFF OFF
ON OFF
OFF OFF
ON OFF
OFF OFF
Unit Adults
0 177560
1 177520
2 177530
3 177570
4 176520
5 176530
6 176560
7 176570
Notes: Never set two serial
interfaces to the same unit
number.
Unit 0 (if selected)
requires Video EIB switch to
be set to "ALT".
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
ON
ON
FIGURE
Setting
ON ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
2
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
Rate
50
75
110
134
150
200
300
600
1200
1800
2400
4800
9600
19200
-5-