Component Engineering TA-10 User manual

Copyright ©Component Engineering, All Rights Reserved
OPERATOR’S MANUAL

Table of Contents
Chapter 1: Introduction 2
Concept 2
Description 2
Chapter 2: Designing a System 4
What do you want to happen when? 4
Sample Program 4
Chapter 3: Installation 6
Mounting 6
Power Connections 6
Programmable Output Connections 10
Addendum 12
Chapter 4: Operating Instructions 13
Cue Application 13
The Intermission Cue 13
Running The Show 14
Maintenance 14
Chapter 5: Interlock 15
Description 15
Installation 15
Interlock Zones 15
Operation 15
Faults 16
External Wiring 16
Chapter 6: Interlock Rules 17
Chapter 7: Fire Alarm Interfacing 18
Chapter 8: Remote Box Installation and Operation 19
Instructions 19
MCU Chip Compatibility 19
Remove Box Jumper 19
TA-10 Selector Switch 19
Things to Know 20
Replacement of Remote Modules 21
Chapter 9: Clock Timer Operation 22
Operation Instructions 22
Chapter 10: The FM-35 Film Monitor System 23
Chapter 11: Accessories 26
Lens Change/ Douser Close Timer - Installation Instructions 26
Adaptor Relay Kit for Dousers Requiring Maintained Coil Current 29
Chapter 12: Troubleshooting the TA-10 30
Chapter 13: Troubleshooting the Databus 33
Appendix A: Cue Assignment Sheet 35

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Chapter 1: Introduction
Concept
Component Engineering's TA-10 Theatre Automation System is a moderately-priced hybrid system
which uses a sequencer to perform those tasks which are the same in all programs, and a simple cue
coding scheme which allows the film itself to carry commands for other functions. There are not
many dedicated functions, but there are a lot of outputs that have not been assigned. The idea, rather,
is that the theatre’s engineer will determine the functions. It is a box full of tools with which each
individual installation can be tailored to its own needs.
Description
There are two parts to this system. One part is the sequencer and its outputs, and the other part is the
cue decoder and its outputs. The sequencer creates outputs at any of five Events, and the decoder
creates outputs from any of seven discrete cues on the film.
We shall describe the “events”, the event outputs, and then do the same for the decoded discrete
outputs.
The 5 "Events" which occur in all programs are:
1. START (when the button is pushed)
2. START plus 7 seconds
3. INTERMISSION CUE
4. End of INTERMISSION SEQUENCE
5. Film RUN-OUT
Each of these Events puts a pulse (all pulses in this system are of about 1/3 second duration) on an
output "line" to which can be connected one or more of the 6 pilot relays provided. This is done by
means of jumpers or diodes on the main circuit board. This matrix is programmed by the installer
according to the design plan for the theatre. These contacts are rated at 300mA.
There are also some fixed outputs controlled by most of these Events. These take the form of large
relays capable of handling directly the elements they are intended to control (i.e., drive motor, douser
coils, etc.). The normal operation of each of these will be described below. Things are different in
the "Interlock" mode, but that will be discussed in the appropriate chapter.

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MOTOR RELAY (K1)
This relay is energized at Event 1 and stays closed until Run-out. Its contacts are SPDT
Make/Break with all contacts brought to the terminal strip.
LAMP RELAY (K2)
This relay is energized at Event 1 and stays closed until Run-out. The available contacts are
SPST Make.
DOUSER CLOSE RELAY (K3)
This relay is pulsed at Event 1 (just for insurance) and also pulsed at Event 4. The available
contacts are SPST Make and the Common is shared with the Douser Open relay.
DOUSER OPEN (K4)
This relay is pulsed at Event 2. Its contacts are just like the Douser Close with which it shares
its Common.
INTERLOCK RELAY (K5)
This optional relay is intended for switching "Selsyn" motors or other interlock control. All units
have this socket, but the relay is installed only on request.
UTILITY RELAY (K6)
This relay can serve several purposes. It comes connected as a "Show Running" relay. As such,
it is operated at Event 2 and released at Event 4. (In other words, it energizes when the Douser
opens and releases when the Douser closes.) Its contacts are SPDT Make/Break with all elements
available. (Possible uses would be such things as dousers, which require maintained current,
exciter lamp switching, etc.)
By means of a strapping change on the circuit board this relay can be used as a "Show End" or
"Motor Off" relay. In this mode it will pulse at Event 5, and might be used to release the self-
latching circuit of a motor contactor. Other configurations will be discussed in the design section.
INTERMISSION SEQUENCE
This is a user determined time interval, which begins with a cue from the film, and ends when the
time interval has elapsed. The interval is set by means of DIP switches on the Micro Controller
Unit (MCU) plug-in assembly. The dip switches are discussed later.
CODED CUES
Up to 7 different discrete cues can be put on the film, each one of which has its own output. The
7 outputs are possible because of the FM-35 Cue Detector which incorporates a sensor capable of
reading 3 different cue patches on the film. The trick is to not think of them as three cues, but to
think of them as the elements of a 3 bit binary code. This means that from combinations of the
three cues on the film, there are 8 possible outputs (or "states"). One of these "states" is 0, which
leaves 7 more for us to use. All of these outputs pulse pilot relays. The contacts are rated at 300
mA.
DATA LINK
Multiple TA-10 systems can be tied together via a standard 2 conductor shielded cable. This
feature allows the connected TA-10s to talk to each other and/or a central control and monitoring
station. Also, this is how 2 or more houses are run interlocked with each other.
These are the tools. The next step is to design your own system.

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Chapter 2. Designing a System
What do you want to happen when?
Write out the most complicated program you are likely to have to run, but do it in two columns. One
column will show those things which will always happen at the same point in the program, and the
other column will show those things which are governed by the film. Now, while checking the list of
"Events", give each of the "always the same" entries an "E" number.
Next, referring to the sample on the page that follows, you will assign "Q" numbers to the list of cues
that are governed by the film. There are however a few things to consider. It is a good idea to try to
make the most frequently used cues the ones that are easiest to apply. Try to save the edge-only cues
for those functions, which might have to be triggered while the picture is on the screen. Don't get too
fancy. You have only 7 cues and one has to be reserved for "Intermission".
At this point you need to know more about the "Intermission" cue. This cue is used for several
purposes besides beginning the Intermission Sequence. It all depends upon where you are in the
program. After the douser is open and the show is running, triggering "Intermission" will begin the
Intermission Sequence as you would expect. After the douser has closed, but the film has not run out,
another "Intermission" cue will re-start the show by initiating the normal 7 second Start Sequence.
Those who like to put a “Curtain Call” in their program can use this feature. It also can be used when
making a lens change. See "Operating Instructions” for more on this Cue.
After you have made your choices, you can go back to your list and fill in the "Q" numbers. Please
see the next page for a sample list with all the assignments made. Note that the dedicated functions
are not listed.....only the user defined ones.
You can see how it works. The standard parts of the show are controlled by the events, but the mid-
show changes are controlled by the discrete cues. For this example, it has been decided that the house
standard is to Mute the Non-Sync at show start, so this function is tied to an Event (E1) rather than a
Cue. It is also tied to another Event (E4) at the end of the show.
As most trailers now are in a Stereo format, we save cueing by using E2 to bring in Stereo Sound.
(Mono Sound can be called for by Q2.) If there is a mono trailer or Logo, a Cue will have to be
added.
As both the event relays and the “Q” relays are double pole relays, functions that are always
preformed together can be wired to the separate poles of the same relay. The following example
assumes a dimmer system that allows for half-light, which is triggered by E1. Q3 takes them down
the rest of the way, while Q4 will bring them back to Half during the closing credits.
Note: There are bound to be needs not provided for in this system, and others, which may well be
possible but not outlined in these instructions. If you have questions or are not sure how to attain
your design goals, please call us at [phone] and let us try to help.

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Sample Program
Lights to Half E1
Mute Sound E1
Stereo “A” E2
(Previews now on screen)
*
Lights Down Full Q3
SR/Digital sound Q7
(Feature now on screen)
LighttoHalf Q4
Intermission Q1
Mute Sound E4
Non-Sync Sound E5
* Should you have a lens changer you might add the following after the previews:
CurtainCall Q1
Lens Change Q6
End Curtain Call Q1
In summary:
The Cue assignments are: The event relays are:
Q1 Intermission Mute Sound
Q2 Mono Stereo “A” Sound
Q3 Lights Down Non-Sync Sound
Q4 Lights to Half Lights to Half
Q5 Stereo “A” Lights Up
Q6 Lens Change
Q7 SR/Digital sound
Q1 was used for "Intermission" because it is probably needed more than any other, is easy to put on,
and is easy to trip manually.
Q2 for Mono is admittedly in the picture area, but sound cues tend to be applied on or near the head-
end splice where it is likely to be black.
Q3 is another, which is probably going to be placed in the black between the end of a trailer and the
beginning of the feature.
Q4, on the other hand, is most apt to be wanted just before the start of the closing credits where it
might show on the screen.
Q6 is another, which will be used when the screen is dark.

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Chapter 3: Installation
Mounting
MAIN ASSEMBLY
The main circuit board, its relays, and the control panel, are produced in two different formats. In
addition to the self-contained wall mount unit, there is a mounting package for use in consoles.
FM-35 CUE DETECTOR ASSEMBLY
Please refer to Chapter 10, FM-35 Film Monitoring System.
Power Connections
INPUT POWER
The actual power requirements for this unit's own operation is small. Note that the fuse is 3/16
amp at 110 VAC (1/4 Amp at 110 VAC if you have the “clock” version). Therefore, 18ga. wire
would be sufficient as long as the insulation is adequate. Observe the "HOT" and "NEUTRAL"
terminals, as well as the "GROUND", which is connected to the chassis. A "ring" type of
terminal and a lock washer should be used under this screw.
If not already connected, the wiring to the power switch and fuse are merely plugged into the
mating connector on the circuit board. This connector is polarized and can't be plugged in
incorrectly. The wiring harness for the manual control switches is likewise simply plugged into
the 9-pole receptacle on the relay circuit board. This plug is also polarized.
MOTOR RELAY
Wire the motor hot lead through this relay with the power source to the "COM" terminal and the
motor to the "N.O." terminal. The manual switch on the control panel is wired in parallel with the
relay contacts for emergency operation. In most cases, only the "Make" contacts of this relay will
be needed, but the "Break" contact is also available for those who, for example, like to switch
their "Non-Sync" Off and On this way. Power will be fed out the "N.C." terminal when the relay
and the manual switch are Off. There are simple ways to modify the motor control circuit to
accommodate projector motors that are switched by a contactor requiring only momentary
control. Contact Component Engineering for details.
LAMP RELAY
Wire the remote switching circuit from your lamp to the "COM" and "N.O." terminals.
DOUSER RELAYS
The contacts of the two relays are interconnected such that the input power hot lead should go to
the "COM" terminal and the two douser coils then connected to their respective "OPEN" and
“CLOSE" terminals. Power Neutral goes to the douser coil common. An accessory board is
available for maintained dousers. (See Chapter 11, Accessories.)

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INTERLOCK RELAY
The primary purpose of this relay is to energize a "Selsyn" when that type of interlock system is
employed. By breaking a circuit board trace, however, it can be strapped for other purposes.
These options are described below. While the socket is in all units, the relay itself is installed
only upon request.
UTILITY RELAY
As originally wired, this relay is a "SHOW RUN" relay. That is, it energizes on Douser Open,
and releases on Douser Close. Possible uses might be for rotary solenoid types of dousers, which
require maintained current, or for installations that like to switch their Exciter Lamp Off and On.
If manual control is desired it must be wired parallel with external wiring as there is no “built in”
provision for manual control of the Utility Relay or outputs.
Referring to the following figures, you can see that by cutting a circuit board trace and installing a
jumper wire, this relay can become a "Motor Off" relay. This is intended for those projectors
whose motors are switched by a contactor, which has a self-latching circuit. By using this relay's
"Break" set of contacts, the contactor latching circuit can be interrupted. Note also that the figure
that follows shows how both the "Utility" and the "Interlock" relays can be reassigned.

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CONTROL CABLES
The cable from the Push Button Control Panel is terminated by two plugs, which go onto headers
at the top of the main circuit board. These headers are just above the plug-in Micro Control Unit
(MCU) subassembly.
The "Intermission Cue" wires come connected to "Q1", but if your system design calls for a
different Cue, they can be relocated.
The 15-conductor cable from the FM-35 cue detector assembly is terminated in the strip on the
left side of the main board. The terminals are marked with the color code matching the
conductors in the cable.
Note: For ease in installing and/or servicing this unit, Film Presence and Film Motion defeat
switches are provided. These are the small switches immediately to the right of the lower end of
the FM-35 terminal strip.
DATA LINK
Any TA-10 Theatre Automation system can communicate with any other TA-10 and/or a Remote
Control Station, via the "Data +" and "Data -" connections. See the figure that follows. This is an
RS-485 bus, which is capable of operating over fairly long distances, and is quite immune to
noise. This link is particularly useful in that it is the only interconnection required between units
operating in the "Interlock" mode. ("Selsyn" interlock systems obviously have to have their own
5 conductor interconnecting wiring.) Standard 2 conductor shielded wire (such as you would use
for audio wiring) is recommended. Be sure to observe and maintain the polarity. Unlike audio
wiring, both ends of the shields must be terminated to chassis ground.
Depending upon the length of the electrical ground runs and the tightness of wire and conduit
connections, there is the possibility of a voltage difference between the grounds of any two
chassis. Therefore, before actually connecting the second end of a shield to the ground terminal,
it is wise to check for voltage between the unattached shield and the ground terminal.
If there is any voltage indicated, a 47 to 100 ohm resistor should be soldered on the end of the
shield with the other end of the resistor going to the ground screw.

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For reliable operation, the RS-485 data bus protocol requires that the bus be properly loaded. The
normal recommendation is that the load be about 75 ohms with half of this load at the extreme
ends of the run. Every TA-10 has a switchable 150-ohm resistor installed so that no external
resistors are needed. The switch that does this is SW3 (indicated on the drawing above), which
looks like a screw head on a short black plastic stud. When the screw is down, two leads are tied
together, and when the screw is backed out a half turn or so, the circuit is opened.
When installing the data bus make sure that all screws are backed out (switch open) except those
at the ends…. be it a TA-10 or a Remote Box. This will leave two 150-ohm resistors across the
data bus for a total parallel load of 75 ohms. It is a good idea to check the bus with an ohmmeter
(with all units powered OFF) to confirm.
When two or more TA-10s are tied
together via the Data Link, it is
essential that each one be assigned its
own discrete address or the various
units will confuse each other.
This address is set by means of the 4
pole DIP switch in the upper left corner
of the MCU circuit board. (The MCU
board is the small circuit board, which
plugs into the main circuit board.)
The figure on the left will show you
how to set the switches for each of the
sixteen possible assignments. The
important thing is that no two of them
are alike.
All TA-10s and remote boxes are wired
in series, there can be no tees. You
must have the one remote box that is
enabled as “master” at one end of the
bus.

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REMOTE CONTROL
The Remote Control system connects to the individual automation through the RS-485 bus.
Using the terminal strip in the upper right corner of the TA-10 board can configure a hard-wired
control of “Start”, “Stop”, and “Interlock”. Connecting the ground terminal and the appropriate
terminal is all that is required. The "Start" function could be connected to a timer and the "Stop"
could be connected to an in-house system for "Panic" shutdown. (It is often connected to a Fire
Alarm system.) A Cue could be used to have the system shut itself down.
Programmable Output Connections
OUTPUT RELAYS
All of the programmable control outputs (either the Cues or the Events) from this automation are
by means of pilot relays. Their contacts are rated a 300 mA. ac, or 1 Amp dc. The relays are
closed for approximately 1/3 second. Circuit voltages of more than 48 are not recommended.
As normally installed, each relay has 2 sets of “Make” contacts brought out to the terminal strips.
If “Break” contacts are needed, one set can be had by unplugging the relay, moving it one position
to the right and reinstalling it. Now, the top pair of contacts will still provide a “Make” set of
contacts, but the lower pair of terminals will provide a “Break” set of contacts. These can be used
independently of each other, or wired to form a single SPDT contact set.

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This illustration will show you how to wire to each of the contact sets. The left figure shows the
terminals for one set of contacts. The right figure shows the terminals for the second set. The
pattern just repeats for the rest of the relays, and is the same for either the Cue relays or the Event
relays.
PROGRAMMING THE "EVENT” RELAYS
To have a relay operate from an Event, you put a jumper from the hole associated with that Event
over to one of the three holes provided for each relay.
IMPORTANT: If you want a relay to be operated by more than one Event, you must use
diodes instead of plain jumpers! Use any general-purpose diode you like as long as it is rated at
1 Amp or better. The Cathode end points to the left as indicated by the symbol printed on the
circuit board.
Note: Soldering these jumpers can be done from the top of the circuit board as long as you are
careful to not let the lead ends go down through the holes too far.

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INTERMISSION SEQUENCE
The time interval between the Intermission Cue and the Douser Close (Events 3 and 4) is
determined by the installer. On the top of the small circuit board, which is plugged into the main
board, there are 2 DIP switches. The six-pole switch is the one we want here. The six individual
switches are arranged in a binary format such that the left switch is 1 second, the next one is 2
seconds, the third is 4 seconds, and so forth until the sixth switch, which is 32 seconds. Just
decide how many seconds you want for your Intermission Sequence and flip switches until they
add up to the number you have chosen. (For example, if it takes your curtain 11 seconds to close,
flip the 4th switch [8 seconds], 2nd switch [2 seconds] and the 1st switch [1 second] for a total of
11 seconds.) If you don't flip any, the system will default to 7 seconds.
Addendum
MANUAL CONTROLS
Manual controls for motor, lamp and douser are provided on the front panel. These switches are
in parallel with the power relays and thus will operate the device in question even when the TA-
10 is off. These are the only assigned outputs and as this system is designed to give the user
flexibility, it is difficult to provide manual override switches for such things as dimmers, curtains,
masking or the like. The need for such manual switches, however, is real. Therefore, six
unassigned switches have been provided which the installer can assign and wire as desired.
A selection of labels is also provided with which to identify these switches. The panels are
normally loaded with two SPDT maintained contact switches, and four SPDT center off
momentary switches. Other configurations may be had upon request. .187 X .032 push-on
terminals are required for connection to these switches and a supply comes with the unit. When
installing these terminals be sure to put a hand against the outside of the switch as its plastic
retaining springs may not be strong enough to withstand the force necessary to seat the terminal
on the lug. If more terminals are needed, please be sure that they are meant for the .032"
thickness of the male lug. The .187 X .020 terminals have the potential of ruining the switch if
they are forced onto the lugs.
DEFEAT SWITCHES
"Film Presence" and "Film Motion" defeat switches are provided for ease in working on the
system. These are small slide switches located on the main circuit board immediately inside the
lower portion of the terminal strip to which the FM-35 cable is connected. These switches
parallel the relay contacts of the FM-35. The front panel LEDs will come on and serve as a
reminder that the switches have been operated.

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Chapter 4: Operating Instructions
Cue Application
The foil cue patches required for this system are simply little pieces of 3/16"
or 1/4" wide aluminum foil tape. The illustration shows how each of the
individual cues should look. This diagram shows the multiple position cues
as single pieces of cue tape because they are easier to apply, but discrete
patches could be used. Remember that any cue in the center position is in the
center of the film, not the center of the picture area.
You may perforate the cues with your splicer if you like, but it really isn't
necessary. The foil may be put on either the emulsion or the base side of the
film, and you can even seal it in with a piece of splicing tape. In some cases,
a good location is right under the splice between two parts of your program
(such as between the trailers and the feature). This is particularly effective
for sound change cues and helps remind you to remove the cues when you
break down the film.
All of the patches for a given cue should be on the same frame line. The
decoder can tolerate some linear displacement, but if you are off more than
about 1 frame they will not be read correctly.
The decoder can handle only one cue at a time, but successive cues can be
placed as close as 1 foot apart. (Using the same example of the transition
from trailers to feature, you might have a Stereo Sound cue under the splice
and a Lights Down cue 1 foot earlier.) If, continuing with our example, you
also have to add lens and/or masking change cues, consider making up
already cued standard slug leaders that you can cut into your program as
needed.
The Intermission Cue
This is a busy cue. True, its primary purpose is to initiate the Intermission Sequence, but it does other
things as well, depending upon where you are in the program.
Suppose your program calls for a "Curtain Call" (or "Mini Intermission"). As you come to the end of
the trailers, put on a regular Intermission Cue just as you would at the end of the program, but in this
case the film is not going to run out and stop the projector. 7 seconds before you want the next part of
the program to appear on the screen, put another Intermission Cue on the film and it will behave just
like pushing the Start button.
One of the dangers of the above scheme is that after the Intermission Sequence has timed out and the
douser has closed, the system thinks that it is at the end of the show and is looking for Run-Out so
that it can shut down the motor. This means that the alarm is disabled, and so, if you have a film
break during your "Curtain Call", you won't know it.

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If you don't want to trust to luck, there is an answer, and it is the Intermission Cue again. If you put
on still another Intermission Cue before the douser closes, (1 foot after the first cue is a good place)
the alarm will be reenabled. Once the show has re-started itself, everything will be normal.
This cue is also used to Start the show when you are in Interlock. The "Interlock" section will discuss
this feature in greater detail.
Running The Show
You can pretty well monitor the status of your program by observing the lights in the indicator
column on the control panel. The red light at the top shows that the system is On. When the film is
threaded and ready to run, the Film Presence light will come on. When the Start button is pushed, the
motor and lamp will be turned on, the Motor On and the Lamp On lights on the panel will light up,
the Power On light will start pulsing to show that the program is running, and the normal 7 second
Start Sequence will begin. Shortly thereafter, the Film Motion light should come on, and at the end of
the 7 seconds as the douser opens, the Show Running light will come on.
If you push the Start button when the film is not ready, the alarm will sound for as long as you hold
the button down.
If, during running of the show there is a film break or a loss of film motion, the alarm will sound and
all Intermission functions will be activated. Pushing the stop button will silence the alarm. After you
fix the problem, push the Start button and you will go through a normal 7-second sequence. You will
want to check the status of any program changes that might have been made earlier in a normal show
(such as Sound format, House Lights, etc.) and re-establish them manually.
During the Start Sequence there is a 3 second bobble delay during which the Film Presence detector is
disabled to allow for settling of the film handling machinery.
Film Motion monitoring begins after this same 3 second point.
Maintenance
The only maintenance required is to the mechanical parts of the FM-35 detector assembly. Please
refer to Chapter 10, FM-35 Film Monitoring System.

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Chapter 5: Interlock
Description
If you have read the prior chapters, you have a pretty good idea of how the TA-10 handles the
interlocking of two or more projectors. This chapter will bring it all together.
Any two or more projectors on the same Data Link can communicate with each other for purposes of
running in unison. The mechanical means by which the projectors synchronize with each other is up
to you, be it synchronous motors, Selsyns, or bicycle chain. If needed there is a relay, which will help
you with the control of your part, but you may have to add some extra circuitry. More about this
later.
Installation
Please review the data bus wiring recommendations in Chapter 3, Installation, pages 9 and 10.
Interlock Zones
Each TA-10 MCU board can be set for zones A,B,C, or D. If you have permanent interlock groups
you would set the links as necessary. If your groups will change with conditions we recommend that
you install a rotary selector switch on the front panel and wire it to the pins. We will supply the
switch and connector upon request.
Operation
A "run-through" of a typical presentation might be the best description. Thread up each projector as
you would for any Interlock presentation, and when it is ready to go, push the "Interlock" button on
the control panel. The bottom blue lamp on the control panel will light.

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Then go on to the next projector, thread it, push its "Interlock" button and so on. When all machines
are ready to go, push any "Start" button and all machines will roll together.
Because they are in the Interlock mode, only the motor relays will operate when the "Start" button is
pushed. Each system is waiting for something to tell it when to start the rest of the show, and that
something is the Intermission cue. When the cue arrives at each projector in turn, each will begin its
normal 7-second cycle starting the show.
As the show is running, all Events and Cues will happen normally. At the end of the Intermission
Sequence (Event 4) on a given projector, faults will no longer be transmitted on the Data Link
because that particular system is looking for a Run-Out. When the film does run out, that one
projector will shut down as usual, and drop out of Interlock. Any other machine still on the bus will
continue normally.
Faults
If a projector in the Interlock mode receives a Start command from the Data Link, and is not ready to
go, it will immediately put a Stop command back onto the Data Link and sound its alarm. Likewise,
at any time during the show, a loss of Film Presence or Film Motion will cause a Stop command to be
transmitted to all other projectors in Interlock. Each will shut down and trigger their Intermission
functions, and the alarm on only the initiating projector will sound so that you know where the trouble
lies.
In this case, because you are presumed to be in midshow, and the projectors will remain in the
Interlock mode. This means that when you next push the Start button, each machine will start up and
go immediately into the 7-second start cycle. It won't be looking for a Start Cue. If any of the
systems on-line have been taken out of Interlock and then put back in, they will assume that it is a
new start and will look for a Start Cue.
In this case, it would probably be best to toggle all of the projectors out of Interlock and then back in,
and then go around and manually trigger each of them after restarting. As is the case with any stop
caused by a fault, you will also need to manually reestablish some things such as sound format and
house light level.
External Wiring
If you are using synchronous motors, there is no need for any other wiring. You don’t even need K5,
the Interlock Relay. However, if you are using Selsyn Interlock, the Interlock relay can be used to
energize the individual Selsyns which you will have connected together by the required 5 conductors.
If you are tying together no more than two projectors, the easy way is to wire the 117 V.A.C. to the
Selsyns through both of the Interlock relays in series. If, however, you are putting more machines on
the bus, then you may want to add a three-pole relay for each Selsyn motor. If you switch (via the
interlock relay) only the excitation voltage to the Selsyns, in many cases there will be enough induced
current from the secondaries to cause them to sort of try to follow each other. So, if you install a three
pole relay such that you switch not only one leg of the primary circuit, but two of the secondary legs
as well, each unit will be fully isolated from the others. The Interlock relay would be used to operate
this three pole auxiliary relay.

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Chapter 6. Interlock Rules
Be sure the Blue Button has been pushed and the "Interlock" light is on for all projectors you want tied
together.
When in "Interlock", pushing the START button will start only the motors. The system will now be
looking for an Intermission Cue, which will initiate the rest of the start sequence.
Once the show is running on all screens, a failure on any one of them (or pushing the STOP button) will
cause all to shut down, but remain in "Interlock".
When starting in this mode, the systems will go right into a full start sequence. Any projectors that have
been taken out of "Interlock" and re-entered, will again be looking for an Intermission Cue.
When the show is running, the Intermission Cue reverts to its original function and will trigger the
intermission sequence.
After the intermission sequence (the show is off the screen), the system will no longer recognize a failure
on that projector, but is looking for run-out at which time the motor will stop and that machine will drop
out of "Interlock".
DO NOT turn off the A.C. power to any TA-10 that is operating in INTERLOCK. A TA-10 that is
not “ON” cannot send fail/stop codes to the remaining TA-10s that are interlocked with it. The other TA-
10s will not fail/stop in this circumstance until a film break occurs.

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Chapter 7: Fire Alarm Interfacing
The only real need for connection between the TA-10 and a Fire Alarm System is for an automatic
shutdown triggered by the alarm system. Provision is made on the main circuit board of the TA-10 for
external control of the "Stop" function, and if you are using the Remote Box there is a "Panic" input
available, which will stop all TA-10s on the data link.
In the upper right corner of the TA-10 main circuit board there is a four pole terminal strip. These
terminals parallel the manual push buttons and allow for external control of "Start", "Stop" and
"Interlock". The fourth terminal is "Ground". Connecting "Ground" to any of the others will call that
function. When connecting the "Stop" function to the Fire Alarm system it is best to do so by means of
relays. One tidy way of doing this is to have the alarm system give you a low voltage pulse (or
maintained*), which is connected to the coil of a small relay at each TA-10 location. SPST Normally
Open contacts on the relay are then connected to the "Stop" and "Ground" terminals on the TA-10. The
control line from the alarm system and the TA-10s can then be just one line running from one unit to the
next. Relays would be selected to match the voltage available from the alarm system, and they can be
small as the current required to operate the "Stop" circuit is 25 mA. or less.
A second scheme would be to put multiple contact relays at the alarm system location and then each TA-
10 would have to have a home run to that location. In such a case, each TA-10 should be connected to its
own set of contacts on the controlling relay(s). The idea is to try to keep the Grounds of the various TA-
10s separated just to prevent any possible cross-talk or interference problems.
If Remote Boxes are wired into the system, the "Panic" capability can be used. Inside each Remote
Box is a two pole terminal strip labeled "Panic". When these two terminals are connected an immediate
code is put on the data link, which will instantly initiate a "Stop" at each TA-10. Please note that this
method will not work if the Remote Box is not turned on. If this scheme is used it is wise to have the
Remote Box powered from the same (or similar) uninterruptible circuit as the alarm system.
* A maintained "Stop" command will have to be released before the projector can be re-started. The
system will try to start, but will immediately stop again. When the "Stop" command is received by the
TA-10, whether it comes from the data link, an external contact closure or from a finger on the "Stop"
button, several things happen simultaneously. The Motor relay is released, the Lamp relay is released, the
Douser Close relay is pulsed, the Show Run relay is released, and Event lines 3 and 4 are pulsed. This
means that the projector itself is shut down with its lamp off and the douser is closed just to be sure.
Then, all functions tied to all of the normal End-of-Show sequences are triggered. You should have all of
the lights fading up, curtains closing, and sound muted.

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Chapter 8: Remote Box Installation and Operation
Instructions
IT WON'T WORK if you do not follow the instructions.
9You must have the right controller chips in both the TA-10 and the Remote Box
9You must have the wiring exactly right
9You must have the address switches in the TA-10 set correctly
9You must have the switch that selects which range of TA-10 addresses to monitor, set
correctly.
9You must have the master/slave link correct in the Remote Box
9You must have the load switches set properly
MCU Chip Compatibility
As of this writing we are shipping the “TA10NP-2” in the TA-10, and the “REMNP-2” in the full
function Remote Box. The “REMNP-2A” is in the status only Remote Box. In each case the chip in
question is the large 40-pin integrated circuit. In the TA-10 this chip is on the small plug-in board at
the top of the main circuit board perpendicular to the main board. In the Remote Box it is the largest
chip on the lower board. Other versions of these two programs will not work together.
Remote Box Jumper
Any remote box can be configured to be either a “Master” or a “Slave”. Only one (1) remote box on
any data link can be the master. The advent of the 16 TA-10 bus with 2 gang boxes does NOT
change this rule. Only one individual box can be configured as the Master. All other remote boxes
on any data link must be slaves or chaos will result. Look at the lower circuit board in the Remote
Box, just to the right of the large 40-pin integrated circuit there is a small jumper on two of the pins of
a three-pin header. If the jumper is connecting the lower pair, then it is the Master. If the jumper is
connecting the upper pair, then it is the Slave. (Actually, the jumper is not needed at all for Slaves, it
is merely stored in the upper position.)
Remember, only one Remote Box per data link can be a Master. How do you decide which one is the
master? It has been found that the best choice is the one at the end of the line. In other words, the one
at the end of the longest cable run. Usually this will be the one downstairs in the box office or in the
manager’s office. There will be confusion on the line if the master is in the middle trying to send
information requests out in both directions.
TA-10 Selector Switch
The Switch that selects which TA-10s will be monitored is located above and to the left of the
master/slave link. If the slide is to the left it is 1-8. To the right is 9-16.