Gilderfluke&Co old MACs User Manual
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- MACs -
- DIGITAL AUDIO SYSTEM -
Printed February 27, 1999
CC-400
ARD CAGE W/
C
EPEATERS
4 R
CC-400
TWO
ARD CAGES
C
W
/ 8 REPEATERS
CC-1600
ARD CAGE W/
C
EPEATERS
16 R
CC-3250
ARD CAGE W/
C
INI
32 M
EPEATERS
R
MA-100
PA M
ASTER
MA-200
NTERFACE
PA I
AMPLI FIERS SPEAKERS
UP TO 256
PA
STATIONS
REPEATER
P
OWER
S
UPPLIES
AS
NEEDED
OPTIONAL PRINTER
OPTIONAL
C
OMPUTER OR
ERMINAL
T
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A System Overview ......................................................................................... 1
Digital Audio Repeaters ............................................................................................................... 1
Approximate Play Times ........................................................................................................... 3
Audio Processing ..................................................................................................................... 5
Intelligent Public Address System .............................................................................................. 5
Digital Audio Repeater/Mixer Cards ............................................................... 10
DR-100 ....................................................................................................................................... 11
DR-300 ....................................................................................................................................... 12
DR-400 ....................................................................................................................................... 13
AB-100 ....................................................................................................................................... 14
Actual Playing Times .............................................................................................................. 15
2 KHz Bandwidth .............................................................................................................. 15
3 KHz Bandwidth .............................................................................................................. 16
4 KHz Bandwidth .............................................................................................................. 16
5 KHz Bandwidth .............................................................................................................. 17
7.5 KHz Bandwidth ........................................................................................................... 17
10 KHz Bandwidth ............................................................................................................ 18
15 KHz Bandwidth ............................................................................................................ 18
Low Level Mixer ...................................................................................................................... 20
Global/Mix Buss ...................................................................................................................... 20
Listening to GLOBAL BUS ................................................................................................... 21
Listening to MIX BUS ......................................................................................................... 22
MIX BUS Feed from Output ............................................................................................... 23
MIX BUS Feed from Pri Mix Point ........................................................................................ 24
GLOBAL BUS Feed From Out ............................................................................................. 25
GLOBAL BUS feed from Pri Mix Point .................................................................................. 26
Voltage Controlled Amplifier (VCA) ........................................................................................ 27
Shelving Equalizer .................................................................................................................. 27
Card Cage and Power Supplies .................................................................... 28
CC-1600 or CC-400 .................................................................................................................. 28
Output .................................................................................................................................. 28
Mix 'A' Input ........................................................................................................................... 28
Mix 'B' Input ........................................................................................................................... 28
Aux. Input .............................................................................................................................. 28
Repeater Start Input .............................................................................................................. 28
Repeater Status Output ......................................................................................................... 28
Voltage Controlled Amplifier (VCA) Input ................................................................................ 28
Digital Data ........................................................................................................................... 29
PA ......................................................................................................................................... 29
VCA Buss ............................................................................................................................... 29
Repeater Hardware Configuration ................................................................. 30
Volume and Other Adjustments ................................................................................................. 30
Main VCA Volume ................................................................................................................. 31
VCA Half Mute Volume .......................................................................................................... 31
Digital Mix Volume ................................................................................................................. 31
External Mix 'A' Volume .......................................................................................................... 31
External MIX 'B' Volume .......................................................................................................... 31
Public Address Volume .......................................................................................................... 31
Buss Feed Volume ................................................................................................................. 31
Treble .................................................................................................................................... 31
Bass ...................................................................................................................................... 31
VCA Buss Dipswitch Configuration ............................................................................................ 32
Global/Mix Buss Dipswitch Configuration ................................................................................. 32
Repeater Start and Status Internal/External Power Jumper ........................................................ 32
Output Driver Select Jumpers .................................................................................................... 33
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Aux. Port Usage .......................................................................................................................... 33
Configuration from the Serial Port .............................................................................................35
Enter Track Number ............................................................................................................... 36
Baud Rate ............................................................................................................................. 36
Odd Parity Toggle .................................................................................................................. 37
EPROM Type .......................................................................................................................... 37
Inputs Debounce .................................................................................................................. 37
DR-400 Mode ........................................................................................................................ 37
Select From Aux. ................................................................................................................... 37
Direct Select ......................................................................................................................... 38
Mute if Stopped ..................................................................................................................... 38
Start Delay ............................................................................................................................ 38
Early Starts ............................................................................................................................. 39
#1 Priority PA Station ............................................................................................................. 39
#2 Priority PA Station ............................................................................................................. 39
Standard PA Priorities ............................................................................................................. 39
PA Zone Priorities ................................................................................................................... 40
Loop All: ................................................................................................................................40
Group Assignments ............................................................................................................... 40
PA Zone Enables .................................................................................................................... 40
Half-Mute Zone Enables ......................................................................................................... 40
Full-Mute Zone Enables .......................................................................................................... 40
Input Triggering ..................................................................................................................... 41
'A' Input Closing Edge ...................................................................................................... 41
'A' Input Opening Edge .................................................................................................... 41
'B' Input Closing Edge ...................................................................................................... 41
'B' Input Opening Edge .................................................................................................... 41
'PB' Input Closing Edge .................................................................................................... 41
'PB' Input Opening Edge .................................................................................................. 41
'Aux. Port' Input Closing Edge ........................................................................................... 41
'Aux. Port' Input Opening Edge ......................................................................................... 41
eXit Setup Mode .................................................................................................................... 41
Summary of Setup Commands ................................................................................................... 43
Configuration via Dip Switches .................................................................................................. 44
Reset to Default Configuration .............................................................................................. 49
Serial Port Commands ................................................................................. 50
Types of Commands Available ................................................................................................... 52
All ......................................................................................................................................... 52
Track Specific ........................................................................................................................ 52
Group ................................................................................................................................... 52
Cocked ................................................................................................................................. 52
Digital Audio System Serial Commands ..................................................................................... 53
Enter Setup Echo Mode ......................................................................................................... 53
Exit Setup Echo Mode ............................................................................................................ 53
Enter Global Echo Mode ........................................................................................................ 53
Exit Global Echo Mode ........................................................................................................... 53
Enter Echo All Mode .............................................................................................................. 53
Exit Echo All Mode ................................................................................................................. 54
Enter Echo Mode ................................................................................................................... 54
Exit Echo Mode ...................................................................................................................... 54
Track Status Report ................................................................................................................ 54
Special Default Setup ............................................................................................................ 55
LED Port Status ....................................................................................................................... 55
Switch Status ......................................................................................................................... 55
Enter Configuration Mode ..................................................................................................... 55
Memory Address Status .......................................................................................................... 56
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Dipswitch #1 Status ............................................................................................................... 56
Dipswitch #2 Status ............................................................................................................... 56
Aux. Port Status ...................................................................................................................... 56
Configuration Dump ............................................................................................................. 56
Load Configuration ............................................................................................................... 59
Start Commands ................................................................................................................... 59
Start Track: ...................................................................................................................... 59
Start All: ........................................................................................................................... 59
Start Cocked: .................................................................................................................. 59
Start Group: .................................................................................................................... 60
Stop Commands: .................................................................................................................. 60
Stop Track ....................................................................................................................... 60
Stop All: ........................................................................................................................... 60
Stop Cocked: .................................................................................................................. 60
Stop Group: .................................................................................................................... 60
Reset Commands: ................................................................................................................ 60
Reset Track: ..................................................................................................................... 60
Reset All: ......................................................................................................................... 60
Reset Cocked: ................................................................................................................ 60
Reset Group: ................................................................................................................... 60
Mute Commands: ................................................................................................................. 60
Mute Track: ..................................................................................................................... 60
Mute All: .......................................................................................................................... 60
Mute Cocked: ................................................................................................................. 60
Mute Group: ................................................................................................................... 60
Half-Mute Commands: .......................................................................................................... 60
Half-Mute Track: ............................................................................................................... 60
Half-Mute All: ................................................................................................................... 60
Half-Mute Cocked: .......................................................................................................... 60
Half-Mute Group: ............................................................................................................. 60
Un-Mute Commands: ............................................................................................................ 61
Un-Mute Track: ................................................................................................................ 61
Un-Mute All: ..................................................................................................................... 61
Un-Mute Cocked: ............................................................................................................ 61
Un-Mute Group: .............................................................................................................. 61
Cock Track: ........................................................................................................................... 61
Un-Cock Track: ...................................................................................................................... 61
Un-Cock All: .......................................................................................................................... 61
Loop Commands: ................................................................................................................. 61
Loop Track: ...................................................................................................................... 61
Loop All: .......................................................................................................................... 61
Loop Cocked: ................................................................................................................. 61
Loop Group: .................................................................................................................... 61
Stop At End Commands: ....................................................................................................... 62
Stop At End Track: ............................................................................................................ 62
Stop At End All: ................................................................................................................ 62
Stop At End Cocked: ....................................................................................................... 62
Stop At End Group: .......................................................................................................... 62
Select Spiel Commands: ....................................................................................................... 62
Select Spiel Track: ............................................................................................................ 62
Select Spiel All: ................................................................................................................ 62
Select Spiel Cocked: ....................................................................................................... 62
Select Spiel Group: .......................................................................................................... 62
Set Delay .............................................................................................................................. 63
Set Memory Address .............................................................................................................. 63
Clock Commands: ................................................................................................................ 63
Stop Clock ...................................................................................................................... 63
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Start Clock ...................................................................................................................... 63
Mute Masks ........................................................................................................................... 63
Clear PA Request .................................................................................................................. 64
Summary of Serial Port Commands ........................................................................................... 65
Digital Audio Repeater/Mixer Connections ...................................................... 69
Digital Audio Repeater/Mixer to Motherboard ......................................................................... 69
Single Ended Audio Output .................................................................................................... 69
Single Ended Audio Output .................................................................................................... 69
Digital Audio Repeater/Mixer to Adjustment Card ................................................................... 70
Digital Audio Repeater/Mixer to Memory Expansion Card ........................................................ 70
Aux. Port ................................................................................................................................71
RS-485 Serial Data ................................................................................................................. 71
Power Supply ......................................................................................................................... 71
Start Inputs, Status Output, and Audio Output ........................................................................ 71
Digital Data ........................................................................................................................... 72
Pwr. ....................................................................................................................................... 72
PA ......................................................................................................................................... 73
Mix Buss ................................................................................................................................. 73
Start, Status and VCA Inputs .................................................................................................. 74
VCA Buss ............................................................................................................................... 74
Memory Expansion Boards ........................................................................... 75
Configuration and Installation ................................................................................................... 76
Intelligent Public Address System .................................................................. 77
MA-100 PA Master ..................................................................................................................... 78
MA-200 PA Interface .................................................................................................................. 78
Public Address Stations .............................................................................................................. 78
Digital Audio Sampler .................................................................................. 81
Hardware Requirements ............................................................................................................ 82
Installation ................................................................................................................................. 83
Software and Operation ............................................................................................................. 84
Internal Details .......................................................................................................................... 85
Left Window Display ............................................................................................................... 86
Sample- Required ............................................................................................................ 86
Sample- Actual ................................................................................................................ 86
Start Point ........................................................................................................................ 86
Stop Point ........................................................................................................................ 86
Sample Rate/Filter ........................................................................................................... 86
Stereo/Mono ................................................................................................................... 86
File Name ....................................................................................................................... 86
Sample Name ................................................................................................................. 86
Disk Space ...................................................................................................................... 86
EPROM Count ................................................................................................................. 86
EPROM Type .................................................................................................................... 86
Main Menu Commands ......................................................................................................... 87
Sample Length ................................................................................................................ 87
Playback Times ................................................................................................................ 87
Stereo/Mono ................................................................................................................... 87
Original/Evaluated ........................................................................................................... 87
Looping Mode ................................................................................................................. 87
Threshold (Record) .......................................................................................................... 87
Monitor Mode .................................................................................................................. 89
Sample Rate ................................................................................................................... 89
Filter Cutoff ..................................................................................................................... 89
File Name ....................................................................................................................... 89
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Sample Name ................................................................................................................. 90
Record Sample ............................................................................................................... 90
Playback ......................................................................................................................... 90
Configuration Menu ........................................................................................................ 90
Evaluate Data Menu ........................................................................................................ 90
Dump Data ..................................................................................................................... 90
EPROM Image Menu ........................................................................................................ 90
Print Reports .................................................................................................................... 90
Quit ................................................................................................................................ 90
Configuration Menu Commands ........................................................................................... 91
I/O Address ...................................................................................................................... 91
EPROM Size Right ............................................................................................................. 91
EPROM Size Left ............................................................................................................... 91
Rename Sample ............................................................................................................. 91
Delete Sample ................................................................................................................ 91
Erase This File Set ............................................................................................................. 91
Flag Byte Save ................................................................................................................. 91
Evaluation Menu Commands ................................................................................................ 92
Sample Names ................................................................................................................ 92
Playback Times ................................................................................................................ 92
Original/Evaluated ........................................................................................................... 92
Looping Mode ................................................................................................................. 92
Playback ......................................................................................................................... 92
Silence Threshold ............................................................................................................ 92
Trim ................................................................................................................................. 92
Silence Evaluation ........................................................................................................... 92
Data Dump Commands ........................................................................................................ 93
<Up> <Down> .............................................................................................................. 93
<Left> <Right> .............................................................................................................. 93
<PGUP> <PGDN> <W>hole .......................................................................................... 93
<B>itmap ....................................................................................................................... 93
<M>odify ....................................................................................................................... 93
Fade In ........................................................................................................................... 93
Fade Out ........................................................................................................................ 93
Undo ............................................................................................................................... 93
Start ................................................................................................................................ 93
Right/Left ......................................................................................................................... 93
EPROM Image Menu Commands ........................................................................................... 94
EPROM Directory ............................................................................................................. 94
Start EPROM / End EPROM ................................................................................................ 94
Remove EPROM Files ....................................................................................................... 94
Program EPROMs ............................................................................................................. 94
Report Menu Commands ...................................................................................................... 95
Label Name .................................................................................................................... 95
Label Column ................................................................................................................. 95
Start Label ....................................................................................................................... 95
End Label ........................................................................................................................ 95
Channel ......................................................................................................................... 95
Print Test .......................................................................................................................... 95
Print Labels ...................................................................................................................... 95
Name ....................................................................................................................... 95
EPROM ...................................................................................................................... 95
Checksum ................................................................................................................ 95
Time and Date .......................................................................................................... 95
Calibration ................................................................................................................................. 96
A Sample Sample Session .......................................................................................................... 97
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HEXadecimal to DECIMAL to PERCENTAGE ...................................................... 100
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- MACs DIGITAL AUDIO SYSTEM -
- A System Overview -
The MACs DIGITAL AUDIO SYSTEM has been developed to meet all of your needs for Digital Audio
Repeaters, Low Level Processing, and Public Address Systems. The following sub systems are available:
¥ Digital Audio Repeaters (DR-100, DR-300, DR-50, and AB-50)
¥ Audio Processing Modules (DR-300 and DR-400)
¥ Intelligent Public Address System
¥ Digital Audio Sampling System (DAS-100)
Each of these can be used alone or as part of your overall audio system. When used together, all
you need to add to make a complete audio system are the power amplifiers and speakers.
Digital Audio Repeaters:
A Digital Audio Repeater is a solid state replacement for loop and cartridge tape decks. It meets the
demanding requirements for professional voice message, high quality music, and sound effects systems.
Up To 256
DR-100 or DR-300
Cards
Ext. Inputs
Serial
Port
Ext. Inputs
Digital Repeater/
Mixer Card
Digital Repeater/
Mixer Card
Amp
Amp
Ext. Inputs
Ext. Inputs
Ext. Inputs
Ext. Inputs
Digital Repeater/
Mixer Card
Digital Repeater/
Mixer Card
Digital Repeater/
Mixer Card
AB-100 Digital
Audio
Repeater
Amp
Amp
Amp
Amp
Because it is completely solid state, a Digital Audio Repeater never requires any maintenance. A
sound which is recorded on a Digital Audio Repeater will sound just as good twenty or thirty years from
now.
Each DR-100 , AB-100 or DR-300 contains a Digital Audio Repeater (the DR-300 adds a complete
audio processing system to the basic DR-100 card). Their features include:
¥ Each card is a single complete audio playback system (except for power amplification and
speakers).
¥ Message length is virtually unlimited. Up to seven memory expansion cards can be added as
needed.
¥ Bandwidths of up to 15 KHz supported (35.1 KHz sample rate). This is roughly equivalent to a
new audio tape. Each card will also reproduce at 10, 7.5, 5, 4, 3, and 2 KHz bandwidths as
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well.
¥ Dynamic range of up to 72 dB, again roughly equivalent to a new audio tape.
¥ Up to 255 different messages can be stored on each repeater. Any of these can instantly be
accessed through the RS-485 serial port or switch inputs. This lets you easily build interactive
audio systems.
¥ Dynamic Bandwidth Optimizationª allows the repeater to dynamically follow the highest
frequencies of the source material. It will actually stop using any memory at all if an instant of
silence occurs!
¥ Two opto-isolated switch inputs, as well as a parallel auxiliary port and RS-485 serial port on
each card.
¥ OP-100 optoisolator available for auxiliary port. 1/4 J6 input is compatible with all our
animation systems.
¥ All configuration is done through the serial port with easy to use menus (or with onboard
dipswitches).
¥ One optically isolated status output for remote ÔrunningÕ indicators.
¥ Global/Mix bus allows signals to be mixed into any cardÕs output or a signal to be sent from one
card to any number of other cards. This can be used for sending background tracks or
announcements to any number of cards in an installation, or for combining a number of
outputs from several cards into one.
¥ Volume, Mix/Global bus volume, and Bass and Treble controls on every card. These are on a
small Ôadjuster cardÕ, which can be moved between cards without changing any of the
settings.
¥ DR-100 and DR-300 cards plug into CC-1600 (16 slot) or CC-400 (4 slot) card cages. Rack kits
are available for CC-400 cages.
¥ You can use any number of cards in a system to provide any number of simultaneous audio
tracks.
An AB-100 is a digital audio Repeater which can be used when all you need is a single audio track. It
is a 5 x 12 x 2-1/2 inch box which can be mounted wherever you need to put it. Power for the AB-100
comes from a small wallmount power supply or a 12 VDC power supply for mobile installations.
All configuration and commands for the AB-100 are identical to those for all of the other DR-100
Repeaters. It just wonÕt respond to commands for features for which it doesnÕt have hardware installed
(like the PA system commands).
To record a sound into a Digital Audio Repeater, a master (tape, CD, DAT, video tape) of the sound is
played into a IBM compatible computer which has a DAS-100 Digital Audio Sampler installed. The DAS100 takes the original audio and turns it into digital computer data. This data is then 'burned' into
computer memory chips called EPROMs. These are plugged into the Digital Audio Repeaters. From this
point on, the repeaters can play back this sound whenever they are told to. Since the sound is stored on
the repeater in computer memory chips, it will never change or require any service of any kind. Any
tape deck would require regular cleaning and lubrication of the tape heads and moving parts, as well as
their regular replacement.
Each Digital Audio Repeater can store up to 255 separate messages in its memory. Each of these
can be any length from 1/35th of a second on up. Each of these individual messages is known as a
'spiel'. To access these individual spiels on a card, you can use the serial port interface to the audio
system or the AUX PORT available on each card. Any spiel on any card can be played through or looped
at any time.
Our Digital Audio Repeaters are intelligent, they know how to 'downshift' their bandwidths to follow
the highest frequencies in your audio. If there is a moment of silence in your recording, it will actually
stop using any memory at all until the sound starts up again. Because of this, our systems are able use
far less memory for an equivalent bandwidth. They are also able to play back both low and high
bandwidth sounds from the same Repeater card. The Digital Audio Repeaters each check on how much
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memory they need to use and adjust their speeds as often as thirty-five times each second.
Although this 'downshifting' saves the amount of memory you need to use, it can make it darned
difficult to estimate the number of EPROMs your recording will need until it has actually been digitized.
The following charts show the capacities with a variety of sounds using different sized EPROMs:
Approximate Play Times:
Estimated Playing Times For Various Types Of Sounds
High Voices
Number Of 27C512
Memory Chips
Each Chip (1 chip) 14 Sec. 9.3 Sec. 7.5 Sec. 5.6 Sec. 3.7 Sec. 2.8 Sec.
each Repeater (16 chips) 3.7 Min. 2.5 Min. 2 Min. 89.5 Sec. 1 Min. 44.6 Sec
each Expansion (32 chips) 5 Min. 4 Min. 3 Min. 2 Min. 89.5 Sec. 1 Min.
Low Rumbles
2 Khz 3 Khz 4 Khz 5 Khz 7.5 Khz 10 Khz 15 Khz
7.5 Min.
Music
High MusicVoices
Sharp Sound Effects
1.7 Sec.
30 Sec.
High Voices
Number Of 27C010
Memory Chips
Each Chip (1 chip) 28 Sec. 18.6 Sec. 14.9 Sec. 11.2 Sec. 7.5 Sec. 5.6 Sec.
each Repeater (16 chips) 7.4 Min. 4.9 Min. 4 Min. 2.75 Min. 2 Min. 1.5 Min.
each Expansion (32 chips) 9.9 Min. 8 Min. 5.5 Min. 4 Min. 3 Min. 2 Min.
Number Of 27C020
Memory Chips
Each Chip (1 chip) 55.9 Sec. 37.3 Sec. 30 Sec. 22.4 Sec. 14.9 Sec. 11.1 Sec.
each Repeater (16 chips) 14.9 Min. 9.9 Min. 8 Min. 6 Min. 4 Min. 3 Min.
each Expansion (32 chips) 19.9 Min. 16 Min. 12 Min. 8 Min. 6 Min. 4 Min.
Number Of 27C040
Memory Chips
Each Chip (1 chip)
each Repeater (16 chips) 29.8 Min. 19.9 Min. 15.9 Min. 11.9 Min. 8 Min. 6 Min.
each Expansion (32 chips) 39.8 Min. 31 Min. 23 Min. 16 Min. 12 Min. 8 Min.
Number Of 27C080
Memory Chips
Each Chip (1 chip)
each Repeater (16 chips) 59.6 Min. 39.8 Min. 32 Min. 24 Min. 16 Min. 12 Min.
each Expansion (32 chips) 79.5 Min. 64 Min. 48 Min. 32 Min. 24 Min. 16 Min.
Low Rumbles
2 Khz 3 Khz 4 Khz 5 Khz 7.5 Khz 10 Khz 15 Khz
14.9 Min.
High Voices
Low Rumbles
2 Khz 3 Khz 4 Khz 5 Khz 7.5 Khz 10 Khz 15 Khz
29.8 Min.
High Voices
Low Rumbles
2 Khz 3 Khz 4 Khz 5 Khz 7.5 Khz 10 Khz 15 Khz
111.8 Sec. 74.6 Sec. 59.7 Sec. 44.7 Sec. 29.8 Sec. 22.3 Sec.
59.6 Min.
High Vo ices
Low Rumbles
2 Khz 3 Khz 4 Khz 5 Khz 7.5 Khz 10 Khz 15 Khz
223.7 Sec.149.1 Sec. 119.3 Sec. 89.5 Sec. 59.7 Min. 44.7 Sec.
119.3 Min.
Music
Music
Music
Music
High MusicVoices
Sharp Sound Effects
3.7 Sec.
1 Min.
High MusicVoices
Sharp Sound Effects
7.5 Sec.
2 Min.
High MusicVoices
Sharp Sound Effects
14.9 Sec.
4 Min.
High MusicVoices
Sharp Sound Effects
29.8 Sec.
8 Min.
Each DR-50 or AB-50 MiniRepeater holds one EPROM. There is no expansion available on these
repeaters.
Each DR-100, DR-300, or AB-100 Digital Audio Repeater Card holds 16 EPROMs. If your recording
needs more space than this, you can add memory expansion cards to the Repeater cards. Each
expansion card holds another 32 EPROMs. The difference between a MX-100 and a MX-200 is their
height. A Digital Audio Repeater / Mixer card with one MX-200 memory expansion board can fit into the
same 1 inch wide space as the Digital Audio Repeater / Mixer alone. With two or more memory
expansion cards, additional 1 inch wide spaces will be needed and you can use MX-100 expansion
cards. Each Digital Audio Repeater / Mixer card can support unlimited amount of data storage. The only
limitation is the physical mounting of the memory expansion cards. Seven expansion cards on a
Repeater card is the normal physical limit for card cage mounted systems. This forms a package which
takes up 4 inches of card cage space.
In audio bricks (AB-100) there is room for up to three memory expansion cards.
The Digital Audio Repeater / Mixer cards can support any type of EPROM memory chips from 27C512
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up to 27C080. Each Digital Audio Repeater / Mixer must be told what type of memory chips are being
used. This is done in the configuration mode.
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Audio Processing:
DR-300 or DR-400 Repeater cards add:
1) Voltage Controlled Amplifier (VCA)
2) Intelligent PA System support
The VCA can be used to remotely control the volume of the audio produced by the card (or fed to it
from an outside source) with any 0 to 10 VDC control signal, or from the Intelligent PA System
If these cards are used with the Intelligent PA System, they can be configured to respond to full-mute
commands, half-mute commands, or to volume control zone signals from the MA-100 PA System Master.
There are eight full and half-mute zones available. Any individual card can be told to respond to any
number of these zone commands. There are also eight volume control zones available. Any individual
card can be told to respond to any one of the eight volume control zones or to the external VCA input
available on each card.
The DR-400 is used when you need to send an audio signal from an external source through Voltage
Controlled Amplifiers (VCAs), Intelligent Public Address System, and Shelving Equalizers.
Intelligent Public Address System:
The Intelligent Public Address System is used where a powerful and flexible zoned Public Address
System is needed. It can be used with our DR-300 and DR-400 Digital Audio Repeater cards or in stand
alone installations.
The PA system consists of one PA Master, one PA Interface Panel for each eight PA stations (the first
one is part of the PA Master), and the PA Stations themselves. These are available in four different styles:
1) One Button PA Stations use the microphoneÕs Push To Talk (PTT) button to select any one of the
PA zones.
2) The Four Button PA stations can select any of four different PA zones, plus one more with the
microphoneÕs PTT button. You can tell the buttons on these stations to latch the zone
requested, only momentarily select the zone, or latch it until the next time the PTT button is
released.
3) The Smart PA stations can be set up to access all of the features in the entire audio system,
including any Digital Audio Repeaters, Animation Control Systems, and volume control zones
which happen to be attached to it. They are available with backlit LCD displays on them. Their
pushbuttons are normally located on the microphone itself.
4) Phantom PA Stations are used to tie a Digital Audio Repeater to the PA system in order to make
automated announcements. When the Repeater is triggered, it will select a PA zone and feed
the audio output from the repeater to the selected zone.
Each PA Interface Panel has connections for eight PA stations, eight balanced ÔlocalÕ PA outputs, and
one (optionally eight) balanced Back Ground Music (BGM) inputs. The BGM is normally fed to the eight
local PA outputs. When one of these responds to a PA zone request, the PA announcement is fed to it as
the BGM is half-muted. Each local PA output can respond to four different prioritized PA zone requests.
The Intelligent Public Address System features include:
¥ Up to 511 PA zones are available. Sixteen cross-zone announcements can be made at one
time, along with any number of local PA zone requests. These latter take place when any PA
station requests itÕs local PA output.
¥ Supports up to 256 PA stations. These are available in One Button, Four Button or Smart
models.
¥ All setup is done through easy to use menus using any PC or terminal. Configuration includes
selecting which zones any PA station button will select, and the normal, half-muted, and PA
announcement volumes for the local PA outputs. A key lock and battery protects the
configuration data from unauthorized access and power failure.
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¥ Separate printer and terminal outputs can give a running record of all PA system activity.
¥ PA Master controls up to eight volume zones, or any other 0 to 10 VDC controlled device
(lights, screens, etc.).
¥ Eight PA stations per Interface Panel. Stations are transformer and opto isolated from the rest of
the system.
¥ Wiring to all PA stations is by 8 conductor telephone line. Power for the stations is provided by
the PA interface.
¥ Each DR-300 or DR-400 Repeater added to the Intelligent PA system adds another possible PA
output to it.
¥ The PA system can act as a bridge to run animation systems, Digital Audio Repeaters, etc.
from PA stations.
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To support the PUBLIC ADDRESS option you will need:
¥ One MA-100 PA MASTER to control the system and the first eight PA STATIONS.
¥ One MA-200 for each additional eight PA STATIONS (beyond the first eight) or Local PA Outputs
needed.
¥ Any combination of up to 256 SMART or DUMB PA STATIONS.
¥ Optionally, any combination of DR-300 or DR-400 Digital Audio Repeater / Mixer cards.
UP TO 256
UP TO 256
PA/INTERCOM
STATIONS
EXT. INPUTS
EXT. INPUTSEXT. INPUTS
DIGITAL
REPEATER/
MIXER CARDS
Digital
Repeater/
Mixer Card
Digital
Repeater/
Mixer Card
AMP
AMP
Printer Port
Serial Port
Analog Output
MA-100
PA Master
Local PA Outputs (8)
BGM input (1 or 8)
up to 31
MA-200
PA Interface Cards
BGM input (1 or 8)
Repeater/
Mixer Card
EXT. INPUTSEXT. INPUTS
EXT. INPUTSEXT. INPUTS
EXT. INPUTSEXT. INPUTS
Repeater/
Mixer Card
Repeater/
Mixer Card
Repeater/
Mixer Card
Repeater/
Mixer Card
Repeater/
Mixer Card
Digital
AMP
Digital
AMP
Digital
AMP
Digital
AMP
Digital
AMP
Digital
AMP
Digital
Repeater/
Mixer Card
AMP
Local PA Outputs (8)
As shown by the darkened audio path in the above illustration, when a user at any PA station
requests a PA ZONE, an audio path is opened to any of the Local PA Outputs and DIGITAL REPEATER /
MIXER cards in the system which have been configured to respond to requests for that PA ZONE (in this
example there are three DR-300 or DR-400 cards and four Local PA Outputs responding). The normal
audio on those outputs is dropped to the half muted level (this level is adjustable on each output) while
the audio from the PA station is routed to the outputs (the volume of the announcement is also
adjustable on each output). The rest of the audio system and the Repeaters on the affected DR-300
7
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cards continue to operate as usual. Up to sixteen such PA announcements can go on at the same time
UP TO 256
UP TO 256
PA/INTERCOM
STATIONS
EXT. INPUTS
EXT. INPUTSEXT. INPUTS
DIGITAL
REPEATER/
MIXER CARDS
Digital
Repeater/
Mixer Card
Digital
Repeater/
Mixer Card
AMP
AMP
Printer Port
Serial Port
Analog Output
MA-100
PA Master
Local PA Outputs (8)
BGM input (1 or 8)
up to 31
MA-200
PA Interface Cards
BGM input (1 or 8)
Repeater/
Mixer Card
EXT. INPUTSEXT. INPUTS
EXT. INPUTSEXT. INPUTS
EXT. INPUTSEXT. INPUTS
Repeater/
Mixer Card
Repeater/
Mixer Card
Repeater/
Mixer Card
Repeater/
Mixer Card
Repeater/
Mixer Card
Digital
AMP
Digital
AMP
Digital
AMP
Digital
AMP
Digital
AMP
Digital
AMP
Digital
Repeater/
Mixer Card
AMP
Local PA Outputs (8)
Eight LOCAL PA OUTPUTS are available from each MA-100 or MA-200 card. Each of these outputs normally carries whatever audio is being fed into the ÔBack Ground Music (BGM) inputÕ on the back of the
unit. When a request for a PA zone comes in from any of the PA STATIONS, the BGM level on any of the
LOCAL PA OUTPUTS is dropped to a half-muted level on those LOCAL PA OUTPUTS which are responding
and the PA audio is mixed into the output. All audio levels and settings for the LOCAL PA OUTPUTS are
adjusted through the software on the MA-100 PA Master. Each LOCAL PA OUTPUT can be told to respond
to up to four different PA zone requests. If the PA STATION requesting the LOCAL PA OUTPUT has the same
ÔnumberÕ as the output being requested, a special ÔLOCAL PA MODE can be used as shown above. This
bypasses the 16 trunk lines which normally carry the PA audio feeds to allow up to 256 such PA
announcements to go on at the same time.
There are 256 possible PA ZONES. Any Digital Audio Repeater / Mixer card can be configured to
respond to up to eight different PA ZONE requests. Any number of cards can be configured to respond
to any individual PA ZONE request. This allows a PA ZONE to be assigned as a global PA ZONE by simply
8
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telling all the Repeater cards in the system to respond to it.
DUMB PA STATIONS are available with either four buttons (plus the microphone button) or one button
(just the microphone button). Any of the buttons can be configured to access any PA zone in the
system. The buttons on the front of the four button stations can be configured as push-to-talk buttons, to
latch the last requested zone, or auto-release the last zone latched when the microphone button is
released.
Because the PA system can be used for safety announcements, a number of different priority
options are available. The Digital Audio Repeater / Mixer cards each have one PA station each assigned
as top and second priority. These are assigned individually for each Digital Audio Repeater / Mixer card.
Valid PA requests from the second priority PA station override all other PA requests except those from the
top PA station. These priority PA STATIONS will usually be assigned to the station from which safety
announcements are normally made, and to the PA station located closest to the emergency exit for the
area covered by the speakers attached to that particular Digital Audio Repeater / Mixer card.
If no other PA priority options are used, then all other PA requests will be treated equally. If two valid
PA requests come in to the same Repeater card, then both are honored and the audio from both are
mixed equally. The STANDARD PRIORITY OPTION allows you to give PA STATIONS with higher number assignments priority over those with lower numbers. The ZONE PRIORITY OPTION allows PA ZONE requests for
higher numbered PA ZONES to take priority over those for lower numbered PA ZONES.
The local PA Outputs' priorities are set by the order in which you enter the PA zones an output will
respond to. The first entry has the highest priority.
For automated PA announcements, a phantom PA station is used. It is like any other PA STATION
except that it has no buttons or microphone on it. The audio and status output from a Digital Audio
Repeater is attached to the phantom PA station. When the Repeater is started, the status output triggers
the phantom PA station to request a PA ZONE and then feeds its audio into it. The audio will then be
routed to the appropriate audio outputs through the PA system just like any other announcement.
Different spiels can also be requested and PA Zones accessed through the serial port if needed.
SMART PA STATIONS are available with up to 18 buttons on their microphones. Any button can be
configured to request any other intercom station, mute or half-mute zone, send commands to one or
more Digital Audio Repeaters, or ramp the volume of any volume control zone up or down. For those PA
STATIONS which need access to more features than this number of buttons would allow, a numeric-style
entry is used to give them access to any features which you have enabled.
9
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Digital Audio Repeater/Mixer Cards:
These cards are the heart of the MACs Digital Audio System. Each card contains virtually all of the
circuitry needed to reproduce and process one audio track. Up to 16 of these cards can fit into one
CC-1600 card cage. The Digital Audio Repeater / Mixer cards are available in four versions to best suit
your needs:
DR-100: Digital Audio Repeater and Shelving Equalizer only.
DR-300: Full card containing Digital Audio Repeater, Mixer, Voltage Controlled Amplifier,
Public Address / Muting System, and Shelving Equalizer.
DR-400: Public Address/Muting System, Mixer, Voltage Controlled Amplifier, and Shelving
Equalizer.
AB-100: Stand-alone version of the DR-100 Repeater card. Comes complete with power
supply and case.
A basic DIGITAL AUDIO SYSTEM consists of:
¥ One Digital Audio Repeater / Mixer card for each audio track (DR-100)
¥ Card Cages to hold the Digital Audio Repeater / Mixer cards
¥ Power supplies
¥ Power amplifiers
¥ Speakers
UP TO 256
DIGITAL REPEATER/
MIXER CARDS
EXT. INPUTS
SERIAL
PORT
EXT. INPUTS
DIGITAL
REPEATER/
MIXER CARD
DIGITAL
REPEATER/
MIXER CARD
AMP
AMP
EXT. INPUTS
EXT. INPUTS
EXT. INPUTS
DIGITAL
REPEATER/
MIXER CARD
DIGITAL
REPEATER/
MIXER CARD
DIGITAL
REPEATER/
MIXER CARD
AMP
AMP
AMP
In the basic system DIGITAL REPEATER / MIXER cards act as the source for the audio material and/or to
process audio signals before sending them to the power amplifiers and speakers. Up to 256 audio tracks
can be supported by using up to 256 Digital Audio Repeater / Mixer cards. The DIGITAL REPEATER is
normally the primary source of audio for each track on DR-100 or DR-300 cards. Secondary audio
sources can be fed into one of the two external mix inputs available on each DR-300 and DR-400 card.
These can come from external sources like audio tape, CD's, video, film, or live microphones.
Additional mixing between individual cards can be done using the MIX / GLOBAL bus available on all
DR- Repeaters. The MIX BUS can be used to send a signal which is the combination (sum) of any number
of audio signals from other cards into any other one card. This can be used where you need a mixed
output, or for bi-amp or sub-woofer applications. The GLOBAL BUS can be used to send the output from
any one card to be mixed into the outputs of any number of other cards. This can be used if you need
to send a background sound or music to a number of different audio tracks.
The Digital Audio Repeaters can be configured to whatever you want. They can play any spiel just
once, or loop any spiel continuously. A delay can be inserted before each spiel, or between each
iteration when looping. The control signals for the Repeaters can be sent to them through the serial port,
or through the two opto-isolated inputs and auxiliary port available on each card. The external inputs
10
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can run from the audio system's own isolated 'dirty' power supply, or from an external power supply.
Up to 255 different spiels can be stored on each Digital Audio Repeater. These can be any length
from 1/35th of a second on up. They can be accessed at random through the serial port or through the
AUX PORT. The AUX PORT can be told to use a 'one of eight' style selection, or a parallel 8 bit binary
input.
If DR-300 or DR-400 cards are used in a basic audio system, you can use their Voltage Controlled
Amplifiers (VCAs) to change the volume of the output from each card. Each card has its own 0 to 10
volt input for the VCA, or you can attach the VCA to one of eight VCA BUS lines if you need to control
the volume of more than one card at a time.
The following illustrates the four Digital Audio Repeater / Mixer card options. (The GLOBAL / MIX BUS
structure of each card is shown in the GLOBAL LISTEN mode.)
DR-100
ISOLATED
POWER SUPPLY
OPTO
ISOLATION
START & STATUS
GLOBAL/MIX BUS #1
GLOBAL/MIX BUS #2
GLOBAL/MIX BUS #3
GLOBAL/MIX BUS #4
AUXILIARY INPUT
DIGITAL
AUDIO
REPEATER
35 KHz
LOWPASS
BASS TREB.
SHELVING
EQUALIZER
OUTPUT
DRIVERS
(or Optional
High or Low
Pass Filters)
OUT
11
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DR-300
PA AUDIO & CONTROL SIGNALS
FROM MA-100 MASTER
1/2
MUTE
PUBLIC
ADDRESS
SYSTEM
VOLTAGE
CONTROLED
AMPLIFIER
PA
VOLUME
ISOLATED
POWER SUPPLY
OPTO
ISOLATION
START & STATUS
DIGITAL
AUDIO
REPEATER
EXTERNAL MIX INPUT 'A'
VCA BUS
VCA IN/OUT
10v REF.
VOLUME
EXTERNAL MIX INPUT 'B'
GLOBAL/MIX BUS #1
GLOBAL/MIX BUS #2
GLOBAL/MIX BUS #3
GLOBAL/MIX BUS #4
35Khz
LOWPASS
FILTER
BASS TREB.
SHELVING
EQUALIZER
OUTPUT
DRIVERS
(or Optional
High or Low
Pass Filters)
OUT
12
'
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DR-400
PA AUDIO & CONTROL SIGNALS
FROM MA-100 MASTER
1/2
MUTE
PUBLIC
ADDRESS
SYSTEM
VOLTAGE
CONTROLED
AMPLIFIER
PA
VOLUME
EXTERNAL MIX INPUT 'A
VCA BUS
VCA IN/OUT
10v REF.
VOLUME
EXTERNAL MIX INPUT 'B
GLOBAL/MIX BUS #1
GLOBAL/MIX BUS #2
GLOBAL/MIX BUS #3
GLOBAL/MIX BUS #4
AUXILIARY INPUT
35Khz
LOWPASS
FILTER
BASS TREB.
SHELVING
EQUALIZER
OUTPUT
DRIVERS
(or Optional
High or Low
Pass Filters)
OUT
13
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AB-100
ISOLATED
POWER SUPPLY
OPTO
ISOLATION
START & STATUS
DIGITAL
AUDIO
REPEATER
35 KHz
LOWPASS
BASS TREB.
SHELVING
EQUALIZER
OUTPUT
DRIVERS
(or Optional
High or Low
Pass Filters)
OUT
14
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Actual Playing Times:
The following tables show in seconds the capacities of several different types of EPROMs at several
different fixed bandwidths. All values shown are in seconds.
- 2 KHz Bandwidth (4,687 Hz UPDATE RATE) -
EPROM: 27C512 27C010 27C020 27C040 27C080
SIZE: 64K x 8 128K x 8 256K x 8 512K x 8 1M x 8
Number of bytes per EPROM: 65,536 131,072 262,144 524,288 1,048,576
1 EPROM (1 DR-50 MiniRepeater) 13.98 27.96 55.92 111.85 223.70
2 EPROMs 27.96 55.92 111.85 223.70 447.39
3 EPROMs 41.94 83.89 167.77 335.54 671.09
4 EPROMs 55.92 111.85 223.70 447.39 894.78
5 EPROMs 69.91 139.81 279.62 559.24 1,118.48
6 EPROMs 83.89 167.77 335.54 671.09 1,342.18
7 EPROMs 97.87 195.73 391.47 782.94 1,565.87
8 EPROMs 111.85 223.70 447.39 894.78 1,789.57
9 EPROMs 125.83 251.66 503.32 1,006.63 2,013.27
10 EPROMs 139.81 279.62 559.24 1,118.48 2,236.96
11 EPROMs 153.79 307.58 615.16 1,230.33 2,460.66
12 EPROMs 167.77 335.54 671.09 1,342.18 2,684.35
13 EPROMs 181.75 363.51 727.01 1,454.03 2,908.05
14 EPROMs 195.73 391.47 782.94 1,565.87 3,131.75
15 EPROMs 209.72 419.43 838.86 1,677.72 3,355.44
16 EPROMs 223.70 447.39 894.78 1,789.57 3,579.14
Each Expansion: 32 EPROMs 447.39 894.78 1,789.57 3,579.14 7,158.28
Repeater + 1 Expansion: 48 EPROMs 671.09 1,342.18 2,684.35 5,368.71 10,737.42
Repeater + 2 Expansions: 80 EPROMs 1,118.48 2,236.96 4,473.92 8,947.85 17,895.70
Repeater + 3 Expansions: 112 EPROMs 1,565.87 3,131.75 6,263.49 12,526.99 25,053.98
Repeater + 4 Expansions: 144 EPROMs 2,013.27 4,026.53 8,053.06 16,106.13 32,212.25
Repeater + 5 Expansions: 176 EPROMs 2,460.66 4,921.32 9,842.63 19,685.27 39,370.53
Repeater + 6 Expansions: 208 EPROMs 2,908.05 5,816.10 11,632.20 23,264.41 46,528.81
Repeater + 7 Expansions: 240 EPROMs 3,355.44 6,710.89 13,421.77 26,843.55 53,687.09
15
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- 3 KHz Bandwidth (7,031 Hz UPDATE RATE) -
EPROM: 27C512 27C010 27C020 27C040 27C080
SIZE: 64K x 8 128K x 8 256K x 8 512K x 8 1M x 8
Number of bytes per EPROM: 65,536 131,072 262,144 524,288 1,048,576
1 EPROM (1 DR-50 MiniRepeater) 9.32 18.64 37.28 74.57 149.13
2 EPROMs 18.64 37.28 74.57 149.13 298.26
3 EPROMs 27.96 55.92 111.85 223.70 447.39
4 EPROMs 37.28 74.57 149.13 298.26 596.52
5 EPROMs 46.60 93.21 186.41 372.83 745.65
6 EPROMs 55.92 111.85 223.70 447.39 894.78
7 EPROMs 65.24 130.49 260.98 521.96 1,043.92
8 EPROMs 74.57 149.13 298.26 596.52 1,193.05
9 EPROMs 83.89 167.77 335.54 671.09 1,342.18
10 EPROMs 93.21 186.41 372.83 745.65 1,491.31
11 EPROMs 102.53 205.05 410.11 820.22 1,640.44
12 EPROMs 111.85 223.70 447.39 894.78 1,789.57
13 EPROMs 121.17 242.34 484.68 969.35 1,938.70
14 EPROMs 130.49 260.98 521.96 1,043.92 2,087.83
15 EPROMs 139.81 279.62 559.24 1,118.48 2,236.96
16 EPROMs 149.13 298.26 596.52 1,193.05 2,386.09
Each Expansion: 32 EPROMs 298.26 596.52 1,193.05 2,386.09 4,772.1
Repeater + 1 Expansion: 48 EPROMs 447.39 894.78 1,789.57 3,579.14 7,158.28
Repeater + 2 Expansions: 80 EPROMs 745.65 1,491.31 2,982.62 5,965.23 11,930.46
Repeater + 3 Expansions: 112 EPROMs 1,043.92 2,087.83 4,175.66 8,351.33 16,702.65
Repeater + 4 Expansions: 144 EPROMs 1,342.18 2,684.35 5,368.71 10,737.42 21,474.84
Repeater + 5 Expansions: 176 EPROMs 1,640.44 3,280.88 6,561.76 13,123.51 26,247.02
Repeater + 6 Expansions: 208 EPROMs 1,938.70 3,877.40 7,754.80 15,509.60 31,019.21
Repeater + 7 Expansions: 240 EPROMs 2,236.96 4,473.92 8,947.85 17,895.70 35,791.39
- 4 KHz Bandwidth (8,789 Hz UPDATE RATE) -
EPROM: 27C512 27C010 27C020 27C040 27C080
SIZE: 64K x 8 128K x 8 256K x 8 512K x 8 1M x 8
Number of bytes per EPROM: 65,536 131,072 262,144 524,288 1,048,576
1 EPROM (1 DR-50 MiniRepeater) 7.46 14.91 29.83 59.65 119.30
2 EPROMs 14.91 29.83 59.65 119.30 238.61
3 EPROMs 22.37 44.74 89.48 178.96 357.91
4 EPROMs 29.83 59.65 119.30 238.61 477.22
5 EPROMs 37.28 74.57 149.13 298.26 596.52
6 EPROMs 44.74 89.48 178.96 357.91 715.83
7 EPROMs 52.20 104.39 208.78 417.57 835.13
8 EPROMs 59.65 119.30 238.61 477.22 954.44
9 EPROMs 67.11 134.22 268.44 536.87 1,073.74
10 EPROMs 74.57 149.13 298.26 596.52 1,193.05
11 EPROMs 82.02 164.04 328.09 656.18 1,312.35
12 EPROMs 89.48 178.96 357.91 715.83 1,431.66
13 EPROMs 96.94 193.87 387.74 775.48 1,550.96
14 EPROMs 104.39 208.78 417.57 835.13 1,670.27
15 EPROMs 111.85 223.70 447.39 894.78 1,789.57
16 EPROMs 119.30 238.61 477.22 954.44 1,908.87
Each Expansion: 32 EPROMs 238.61 477.22 954.44 1,908.87 3,817.75
Repeater + 1 Expansion: 48 EPROMs 357.91 715.83 1,431.66 2,863.31 5,726.62
Repeater + 2 Expansions: 80 EPROMs 596.52 1,193.05 2,386.09 4,772.19 9,544.37
Repeater + 3 Expansions: 112 EPROMs 835.13 1,670.27 3,340.53 6,681.06 13,362.12
Repeater + 4 Expansions: 144 EPROMs 1,073.74 2,147.48 4,294.97 8,589.93 17,179.87
Repeater + 5 Expansions: 176 EPROMs 1,312.35 2,624.70 5,249.40 10,498.81 20,997.62
Repeater + 6 Expansions: 208 EPROMs 1,550.96 3,101.92 6,203.84 12,407.68 24,815.37
Repeater + 7 Expansions: 240 EPROMs 1,789.57 3,579.14 7,158.28 14,316.56 28,633.12
16
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- 5 KHz Bandwidth (11,718 Hz UPDATE RATE) -
EPROM: 27C512 27C010 27C020 27C040 27C080
SIZE: 64K x 8 128K x 8 256K x 8 512K x 8 1M x 8
Number of bytes per EPROM: 65,536 131,072 262,144 524,28 1,048,576
1 EPROM (1 DR-50 MiniRepeater) 5.59 11.18 22.37 44.74 89.48
2 EPROMs 11.18 22.37 44.74 89.48 178.96
3 EPROMs 16.78 33.55 67.11 134.22 268.44
4 EPROMs 22.37 44.74 89.48 178.96 357.91
5 EPROMs 27.96 55.92 111.85 223.70 447.39
6 EPROMs 33.55 67.11 134.22 268.44 536.87
7 EPROMs 39.15 78.29 156.59 313.17 626.35
8 EPROMs 44.74 89.48 178.96 357.91 715.83
9 EPROMs 50.33 100.66 201.33 402.65 805.31
10 EPROMs 55.92 111.85 223.70 447.39 894.78
11 EPROMs 61.52 123.03 246.07 492.13 984.26
12 EPROMs 67.11 134.22 268.44 536.87 1,073.74
13 EPROMs 72.70 145.40 290.81 581.61 1,163.22
14 EPROMs 78.29 156.59 313.17 626.35 1,252.70
15 EPROMs 83.89 167.77 335.54 671.09 1,342.18
16 EPROMs 89.48 178.96 357.91 715.83 1,431.66
Each Expansion: 32 EPROMs 178.96 357.91 715.83 1,431.66 2,863.31
Repeater + 1 Expansion: 48 EPROMs 268.44 536.87 1,073.74 2,147.48 4,294.97
Repeater + 2 Expansions: 80 EPROMs 447.39 894.78 1,789.57 3,579.14 7,158.28
Repeater + 3 Expansions: 112 EPROMs 626.35 1,252.70 2,505.40 5,010.80 10,021.59
Repeater + 4 Expansions: 144 EPROMs 805.31 1,610.61 3,221.23 6,442.45 12,884.90
Repeater + 5 Expansions: 176 EPROMs 984.26 1,968.53 3,937.05 7,874.11 15,748.21
Repeater + 6 Expansions: 208 EPROMs 1,163.22 2,326.44 4,652.88 9,305.76 18,611.52
Repeater + 7 Expansions: 240 EPROMs 1,342.18 2,684.35 5,368.71 10,737.42 21,474.84
- 7.5 KHz Bandwidth (17,578 Hz UPDATE RATE) -
EPROM: 27C512 27C010 27C020 27C040 27C080
SIZE: 64K x 8 128K x 8 256K x 8 512K x 8 1M x 8
Number of bytes per EPROM: 65,536 131,072 262,144 524,288 1,048,576
1 EPROM (1 DR-50 MiniRepeater) 3.73 7.46 14.91 29.83 59.65
2 EPROMs 7.46 14.91 29.83 59.65 119.30
3 EPROMs 11.18 22.37 44.74 89.48 178.96
4 EPROMs 14.91 29.83 59.65 119.30 238.61
5 EPROMs 18.64 37.28 74.57 149.13 298.26
6 EPROMs 22.37 44.74 89.48 178.96 357.91
7 EPROMs 26.10 52.20 104.39 208.78 417.57
8 EPROMs 29.83 59.65 119.30 238.61 477.22
9 EPROMs 33.55 67.11 134.22 268.44 536.87
10 EPROMs 37.28 74.57 149.13 298.26 596.52
11 EPROMs 41.01 82.02 164.04 328.09 656.18
12 EPROMs 44.74 89.48 178.96 357.91 715.83
13 EPROMs 48.47 96.94 193.87 387.74 775.48
14 EPROMs 52.20 104.39 208.78 417.57 835.13
15 EPROMs 55.92 111.85 223.70 447.39 894.78
16 EPROMs 59.65 119.30 238.61 477.22 954.44
Each Expansion: 32 EPROMs 119.30 238.61 477.22 954.44 1,908.87
Repeater + 1 Expansion: 48 EPROMs 178.96 357.91 715.83 1,431.66 2,863.31
Repeater + 2 Expansions: 80 EPROMs 298.26 596.52 1,193.05 2,386.09 4,772.19
Repeater + 3 Expansions: 112 EPROMs 417.57 835.13 1,670.27 3,340.53 6,681.06
Repeater + 4 Expansions: 144 EPROMs 536.87 1,073.74 2,147.48 4,294.97 8,589.93
Repeater + 5 Expansions: 176 EPROMs 656.18 1,312.35 2,624.70 5,249.40 10,498.81
Repeater + 6 Expansions: 208 EPROMs 775.48 1,550.96 3,101.92 6,203.84 12,407.68
Repeater + 7 Expansions: 240 EPROMs 894.78 1,789.57 3,579.14 7,158.28 14,316.56
17
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- 10 KHz Bandwidth (23,437 Hz UPDATE RATE) -
EPROM: 27C512 27C010 27C020 27C040 27C080
SIZE: 64K x 8 128K x 8 256K x 8 512K x 8 1M x 8
Number of bytes per EPROM: 65,536 131,072 262,144 524,288 1,048,576
1 EPROM (1 DR-50 MiniRepeater) 2.80 5.59 11.18 22.37 44.74
2 EPROMs 5.59 11.18 22.37 44.74 89.48
3 EPROMs 8.39 16.78 33.55 67.11 134.22
4 EPROMs 11.18 22.37 44.74 89.48 178.96
5 EPROMs 13.98 27.96 55.92 111.85 223.70
6 EPROMs 16.78 33.55 67.11 134.22 268.44
7 EPROMs 19.57 39.15 78.29 156.59 313.17
8 EPROMs 22.37 44.74 89.48 178.96 357.91
9 EPROMs 25.17 50.33 100.66 201.33 402.65
10 EPROMs 27.96 55.92 111.85 223.70 447.39
11 EPROMs 30.76 61.52 123.03 246.07 492.13
12 EPROMs 33.55 67.11 134.22 268.44 536.87
13 EPROMs 36.35 72.70 145.40 290.81 581.61
14 EPROMs 39.15 78.29 156.59 313.17 626.35
15 EPROMs 41.94 83.89 167.77 335.54 671.09
16 EPROMs 44.74 89.48 178.96 357.91 715.83
Each Expansion: 32 EPROMs 89.48 178.96 357.91 715.83 1,431.66
Repeater + 1 Expansion: 48 EPROMs 134.22 268.44 536.87 1,073.74 2,147.48
Repeater + 2 Expansions: 80 EPROMs 223.70 447.39 894.78 1,789.57 3,579.14
Repeater + 3 Expansions: 112 EPROMs 313.17 626.35 1,252.70 2,505.40 5,010.80
Repeater + 4 Expansions: 144 EPROMs 402.65 805.31 1,610.61 3,221.23 6,442.45
Repeater + 5 Expansions: 176 EPROMs 492.13 984.26 1,968.53 3,937.05 7,874.11
Repeater + 6 Expansions: 208 EPROMs 581.61 1,163.22 2,326.44 4,652.88 9,305.76
Repeater + 7 Expansions: 240 EPROMs 671.09 1,342.18 2,684.35 5,368.71 10,737.42
- 15 KHz Bandwidth (35,156 Hz UPDATE RATE) -
EPROM: 27C512 27C010 27C020 27C040 27C080
SIZE: 64K x 8 128K x 8 256K x 8 512K x 8 1M x 8
Number of bytes per EPROM: 65,536 131,072 262,144 524,288 1,048,576
1 EPROM (1 DR-50 MiniRepeater) 1.86 3.73 7.46 14.91 29.83
2 EPROMs 3.73 7.46 14.91 29.83 59.65
3 EPROMs 5.59 11.18 22.37 44.74 89.48
4 EPROMs 7.46 14.91 29.83 59.65 119.30
5 EPROMs 9.32 18.64 37.28 74.57 149.13
6 EPROMs 11.18 22.37 44.74 89.48 178.96
7 EPROMs 13.05 26.10 52.20 104.39 208.78
8 EPROMs 14.91 29.83 59.65 119.30 238.61
9 EPROMs 16.78 33.55 67.11 134.22 268.44
10 EPROMs 18.64 37.28 74.57 149.13 298.26
11 EPROMs 20.51 41.01 82.02 164.04 328.09
12 EPROMs 22.37 44.74 89.48 178.96 357.91
13 EPROMs 24.23 48.47 96.94 193.87 387.74
14 EPROMs 26.10 52.20 104.39 208.78 417.57
15 EPROMs 27.96 55.92 111.85 223.70 447.39
16 EPROMs 29.83 59.65 119.30 238.61 477.22
Each Expansion: 32 EPROMs 59.65 119.30 238.61 477.22 954.44
Repeater + 1 Expansion: 48 EPROMs 89.48 178.96 357.91 715.83 1,431.66
Repeater + 2 Expansions: 80 EPROMs 149.13 298.26 596.52 1,193.05 2,386.09
Repeater + 3 Expansions: 112 EPROMs 208.78 417.57 835.13 1,670.27 3,340.53
Repeater + 4 Expansions: 144 EPROMs 268.44 536.87 1,073.74 2,147.48 4,294.97
Repeater + 5 Expansions: 176 EPROMs 328.09 656.18 1,312.35 2,624.70 5,249.40
Repeater + 6 Expansions: 208 EPROMs 387.74 775.48 1,550.96 3,101.92 6,203.84
Repeater + 7 Expansions: 240 EPROMs 447.39 894.78 1,789.57 3,579.14 7,158.28
18
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The Digital Delay feature allows the start time of any digital audio track to be delayed anywhere from
approximately 1/35th of a second to about 1/2 an hour from the time it is given a start command. The
delay will occur any time a start command is received after a Repeater has received a reset command.
In many applications this allows a single start signal to be used for a number of the Digital Audio
Repeaters. The actual start of the spiels is then adjusted in the field as needed. The 'DELAY' LED on the
front of each Digital Audio Repeater / Mixer shows when it is in delay mode prior to starting its spiel.
When a Repeater is in looping mode, the delay will be inserted between each iteration of the
playback loop. In normal looping mode a single spiel is played over and over again. If the LOOP ALL
option is on, then all of the spiels on the card will be played sequentially, with the delay inserted
between each one.
Both the 'start' inputs and 'running status' output for the Digital Audio Repeater are optically isolated
from all other parts of the system. Connections are made to them through four screw terminals for each
card on the back of the motherboard. They can be configured to run either from the isolated 'Dirty'
power supply or from external power. Eight additional inputs are available through the AUX PORT on
each card. These are used to select specific spiels from manual push buttons or switches. The AUX PORT
can be configured to select 'one of eight' with individual switch closures to each input or 'one of 255'
with a binary spiel select to the inputs.
The Repeater checks both the rising (switch closure) and falling (switch opening) edges of each
input. This allows you to configure a Repeater to do one action on one edge of a switch opening or
closing, and then take a different action on the opposite edge. An example of this feature would be if
you told the Repeater to start on finding a closure on one of the inputs, and then stop when the same
input is opened again. The start and AUX PORT inputs can be configured to tell the Repeater to do any
of the following things:
1) MUTE AUDIO
2) HALF MUTE AUDIO
3) UN-MUTE AUDIO
4) RESET REPEATER TO START
5) STOP REPEATER IMMEDIATELY
6) START REPEATER
7) START REPEATER LOOPING A SPIEL
8) STOP REPEATER AT END OF CURRENT SPIEL
There are several options which you can select for early start and loop commands. These are start or
loop commands which come while the Repeater is still playing the last spiel. You can tell the Repeater
to:
1) Ignore early starts.
2) Jump immediately to the beginning of the current spiel.
3) Jump immediately to the beginning of the next spiel.
4) Ignore the early start for now, but save and do it as soon as the current spiel is done.
The 'START' LED on the front of each Digital Audio Repeater / Mixer card is actually a combination of
the two opto-isolated start inputs. This shows the actual start inputs' status as it is seen by the Digital
Audio Repeater, and not a processed version of them. The 'MANUAL START' button on the front of each
Digital Audio Repeater / Mixer card feeds directly into the Digital Audio Repeater's circuitry, and so
doesn't light the 'START' LED. Aside from this one detail, it acts just like any input from the 'START' input on
the back of the motherboard.
The 'RUNNING' LED on the front of each Digital Audio Repeater / Mixer shows when each is currently
running.
19
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- Low Level Mixer -
The mixer section of the circuit is used when there are other sources of audio besides the Digital
Audio Repeater. This feature is available on the DR-300 and DR-400 Digital Audio Repeater / Mixer cards.
The other audio sources can be live microphones, RF microphones, film, video, or just about anything
else. There are two external mixer inputs available to each card in addition to the mix input which comes
from the on-board Digital Audio Repeater (DR-300 only). If additional mixer inputs are needed, access is
available to what is known as 'the summing point' through a plug on the back of the card cage.
- Global/Mix Buss -
Four GLOBAL / MIX BUSES are available which can be used to interconnect all the cards in your
system or to feed an audio signal from an external source into the system. Each card can only use one
GLOBAL/MIX BUS function. Typical applications for the Global/Mix Bus are:
¥ Feeding a background audio track to a number of cards to be mixed with their normal
outputs.
¥ Implementing simple 'non-zoned' Public Address systems.
¥ Monitoring the audio in an attraction by feeding a number of audio tracks to a single monitor
speaker.
¥ Sub-woofer and multi-amplifier applications where the outputs of a number of cards are fed to
a single specially filtered output channel.
When configured for use as a MIX BUS, the audio signals from any number of different cards in the
system are fed to one of the MIX BUS lines. This signal, which is made up of the all of the different signals
which are fed to it, is picked up by one other card. It then can be processed through the PA, VCA, and
EQUALIZER systems just like any other signal. Typical uses for this feature are for sub-woofer applications
(where the low end of a number of audio tracks are amplified separately and sent through special low
frequency speakers) or monitor systems (where the sum of any number of tracks are fed to a monitor
speaker which employees can use to check on the progress of a show).
As a GLOBAL BUS, a signal can be fed into any of the four GLOBAL / MIX BUSES from an external
source, or from any one of the other cards in the system. This signal can then be picked up by any
number of cards to be incorporated into their audio outputs. A typical application for this feature would
be to feed a background musical or rhythm track into many of the audio tracks in the scene. This
feature can also be used to send prerecorded 'emergency' or PA announcements to a number of audio
tracks without having to go through the PUBLIC ADDRESS SYSTEM.
The GLOBAL / MIX BUS can be linked between different card cages or left separated. If the card
cages are linked, then any card in the system can be used to send or receive GLOBAL / MIX BUS signals.
If they are kept separate, then each card cage's GLOBAL / MIX BUS can be used locally.
To configure the GLOBAL/MIX BUS, you insert the small configuration cards which were supplied with
your DR- cards into JP-1 (these ÔrewireÕ this section of each card as shown on the following illustrations).
You then must select which bus you are going to use for this card by switching on one, and only one, of
the switches on the dipswitch marked ÔMIX BUSÕ on the card you are configuring. Each card is capable of
using only one of the MIX/GLOBAL BUS features at one time.
The following illustrations shows the six possible configurations available with the GLOBAL / MIX BUS. A
DR-300 is shown, but these same features are available on all DR-100 and DR-400 cards as well.
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