Gilderfluke&Co PA System User Manual

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- INTELLIGENT PUBLIC ADDRESS SYSTEM -

February 27, 1999

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.

UP TO 256

DIGITAL

UP TO 256

PA STATIONS

EXT. INPUTS

REPEATER/

MIXER CARDS

Digital

Repeater/

Mixer Card

AMP

Printer Port

Analog Output

Serial Port

MA-100

PA Master

Local PA Outputs (8)

BGM input (1 or 8)

up to 31

MA-200

PA Interface Cards

EXT. INPUTSEXT. INPUTS

Repeater/

Mixer Card

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

AMP

Local PA Outputs (8)

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Digital

Repeater/

Mixer Card

AMP

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Intelligent PA System ........................................................................................................... 1

PA-100 One Button PA Stations ........................................................................................... 2

PA--400 Four Button PA Stations .......................................................................................... 2

Smart PA Stations ............................................................................................................... 3

Phantom PA Stations .......................................................................................................... 3

Serial Port Connections and Communications .............................................................. 5

Printer Port Connections and Communications ............................................................. 7

Intelligent PAÊSystem Software Configuration .............................................................. 10

PA Master ......................................................................................................................... 11

maximum number of stations ..................................................................................... 11

local PA ramp rate ..................................................................................................... 11

local BGM ramp rate .................................................................................................. 11

volume zone ramp rate .............................................................................................. 11

use printer handshake ................................................................................................ 11

console clock display ................................................................................................. 11

smart station clock ..................................................................................................... 11

set time ..................................................................................................................... 12

set date ..................................................................................................................... 12

allow zone stepping ................................................................................................... 12

Conditions to Print ...................................................................................................... 12

Conditions to Display ................................................................................................. 12

unmute on boot up ................................................................................................... 12

eXit ............................................................................................................................ 12

Volume Zone Limits .................................................................................................... 12

PA Stations ....................................................................................................................... 14

One Button PA Station ................................................................................................ 14

Four Button PA Station ................................................................................................ 14

latch buttons ....................................................................................................... 14

auto-release latched buttons ............................................................................... 14

Button Assignments .............................................................................................. 14

Select any PA Zone through the 16 trunk lines ................................................ 14

Directly access this PA stationÕs corresponding MA-100/200 output ................. 15

Mute a zone .................................................................................................. 15

Un-mute a zone ............................................................................................. 15

Half-mute a zone ........................................................................................... 15

Toggle mute zone .......................................................................................... 15

Toggle half-mute zone ................................................................................... 15

Rotate through mutes .................................................................................... 15

Set volume zone to minimum ......................................................................... 15

Set volume zone to maximum ........................................................................ 15

Lower volume zone output ............................................................................. 15

Raise volume zone output .............................................................................. 15

Alternate direction of volume zone output ...................................................... 15

microphone PTT ................................................................................................... 16

configure another Four Button station .................................................................. 16

eXit ...................................................................................................................... 16

Smart PAÊStation Configuration ........................................................................................ 17

PA station number ...................................................................................................... 19

baud rate .................................................................................................................. 19

PTT after keys .............................................................................................................. 19

display time ............................................................................................................... 19

busy PAs .................................................................................................................... 19

telephone mode ........................................................................................................ 19

debounce ................................................................................................................. 19

click enable ............................................................................................................... 19

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beep length ............................................................................................................... 19

blab time ................................................................................................................... 20

entry time .................................................................................................................. 20

idle time .................................................................................................................... 20

auto release .............................................................................................................. 20

upload/download ....................................................................................................... 20

access lock ................................................................................................................ 20

microphone buttons .................................................................................................. 22

button ................................................................................................................. 22

locks used ............................................................................................................ 22

LCD string ............................................................................................................ 22

access type ......................................................................................................... 22

none ............................................................................................................. 22

Mute a zone .................................................................................................. 22

Un-mute a zone ............................................................................................. 22

Half-mute a zone ........................................................................................... 23

Toggle mute zone .......................................................................................... 23

Toggle half-mute zone ................................................................................... 23

Rotate through mutes .................................................................................... 23

Set volume zone to minimum ......................................................................... 23

Set volume zone to maximum ........................................................................ 23

Lower volume zone output ............................................................................. 23

Raise volume zone output .............................................................................. 23

Alternate direction of volume zone output ...................................................... 23

Repeater String .............................................................................................. 23

Terminal String ............................................................................................... 23

Printer String ................................................................................................... 24

Access a PA Zone .......................................................................................... 24

zone number ....................................................................................................... 24

aux. string ............................................................................................................ 24

zone entry column ............................................................................................... 24

vol. zone column ................................................................................................. 24

back to setup menu ............................................................................................. 24

string ................................................................................................................... 24

eXit ...................................................................................................................... 24

MA-100/200 Outputs ........................................................................................................ 25

respond to PA zone .................................................................................................... 25

normal audio volume level ......................................................................................... 25

audio level when half-muted ...................................................................................... 26

PA audio level ............................................................................................................ 26

use volume zone ....................................................................................................... 26

eXit ............................................................................................................................ 26

configure a different MA-100/200 Output ................................................................... 26

respond to mute zone ................................................................................................ 26

respond to half mute zone ......................................................................................... 26

Repeaters ........................................................................................................................ 27

Serial Port Commands ..................................................................................................... 28

Reload Default Configuration ..................................................................................... 28

Enter Configuration Mode .......................................................................................... 28

Configuration Dump .................................................................................................. 28

Load Configuration .................................................................................................... 29

Display Mutes ............................................................................................................. 29

Mute Masks ................................................................................................................ 29

Set Volume Zone ....................................................................................................... 29

Repeater Pass Through ............................................................................................... 29

Hardware Debug Mode .................................................................................................... 30

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Connections ...................................................................................................................... 31

Terminal input .................................................................................................................. 31

Printer output ................................................................................................................... 31

PA Station Connections .................................................................................................... 31

PA Microphone Connections ............................................................................................ 31

Single Channel BGM Input ............................................................................................... 31

Eight Channel BGM Input ................................................................................................ 32

Eight Channel Local Outputs ............................................................................................ 32

Digital Data to Repeaters ................................................................................................. 33

Analog Output ................................................................................................................. 33

Power .............................................................................................................................. 34

PA Audio To Repeaters ..................................................................................................... 34

HEXadecimal to DECIMAL to PERCENTAGE ................................................................... 35

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The Intelligent PA System consists of:

¥ One MA-100 PA Master to control the system and the first eight PA Stations and MA-100/200

Outputs.

¥ One MA-200 for each additional eight PA Stations or MA-100/200 Outputs needed.

¥ Any combination of up to 256 PA Stations

¥ Optionally, any combination of DR-300 or DR-400 Digital Audio Repeater / Mixer cards.

Unlike the hardwired PA systems you may have encountered in the past, in the Intelligent PA System
a ÔPA ZoneÕ is an absolutely arbitrary number. Any PA Station can generate requests for any PA Zone
number. Any output can respond to any of up to 19 different PA Zone numbers. Since any number of
outputs can respond to any individual PA Zone number, a global PA Zone can be set up by simply telling
every output in the system to respond to the same number.

As shown by the darkened audio path in the previous illustration, when a user at any PA Station re­quests a PA Zone, an audio path is opened to any of the MA-100/200 Outputs and Digital Audio
Repeater / Mixer cards in the system which have been configured to respond to requests for that PA
Zone (in the example on page one there are three DR-300 or DR-400 cards and four MA-100/200
Outputs responding). The normal audio on those outputs is dropped to a half muted level while the
audio from the PA Station is routed to them. All other parts of the PA System and the Repeaters on the
affected DR-300 cards continue to operate normally. With sixteen trunk lines, up to sixteen such Ôcross­zoneÕ PA announcements can go on at the same time.

There are 255 possible PA Zone numbers (00 through FE). The DR-300 and DR-400 Digital Audio
Repeater / Mixer cards can be configured to respond to as many as eight different PA Zone numbers.

Eight MA-100/200 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 (BGMÕ) input(s) 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 responding MA-100/200 Outputs is dropped to a half-muted level and the PA audio is mixed into the
output. Each MA-100/200 Output can be told to respond to up to nineteen different PA zone requests.

If a PA Station requests zone FF, a special high priority ÔLocal PA MODEÕ is selected. This opens up a di­rect connection between a PA Station and itÕs corresponding Local Output (as shown in the illustration
on the following page). This bypasses all 16 trunk lines. Up to 256 such ÔlocalÕ PA announcements (one
for each station) can go on at the same time. These will take precedence over any other type of an­nouncement.

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 the DR-300 and DR-400 cards treat all other PA requests
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 MA-100/200 Outputs' priorities are set by the order in which you enter the PA zones they will re­spond to. The first entry has the highest priority. Any Local Mode PA requests always take priority over all
other PA zone requests.

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UP TO 256

DIGITAL

UP TO 256

PA STATIONS

EXT. INPUTS

EXT. INPUTSEXT. INPUTS

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)

EXT. INPUTSEXT. INPUTS

EXT. INPUTSEXT. INPUTS

EXT. INPUTSEXT. INPUTS

Digital

Repeater/

Mixer Card

Digital

Repeater/

Mixer Card

Digital

Repeater/

Mixer Card

Digital

Repeater/

Mixer Card

Digital

Repeater/

Mixer Card

Digital

Repeater/

Mixer Card

AMP

AMP

AMP

AMP

AMP

AMP

Digital

Repeater/

Mixer Card

AMP

Local PA Outputs (8)

Any mix of up to 256 PA Stations can be attached to the PA System at the same time. The PA stations
are available in four different styles:

1) PA-100 One Button PA Stations: These use the microphoneÕs Push To Talk (PTT) button to se­lect any one PA zone. All mounting, wiring, and microphone details are identical to those for
the Four Button PA Stations.

2) PA--400 Four Button PA Stations can select any of four different PA zones, plus one more with
the microphoneÕs PTT button. Their buttons can be configured as push-to-talk buttons or to
latch the last requested zone (the PA channel wonÕt be opened until the microphone PTT
button is depressed). When operating in this latter mode, you can tell the stationÕs micro­phone PTT button to revert to the PA zone it normally accesses when it is released.

Both PA-100 and PA-400 PA Stations mount in standard deep duplex boxes. All power and

signals are attached to them through a standard RJ-45 (8 pin modular) style connector.

A low impedance noise canceling microphone like the University Sound US602FL is typi-

cally used with PA-100 and PA-400 stations. A four pin male ÔXLRÕ is used to attach the micro-

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phone to the PA stations. The pin out is as follows:

1) Microphone

2) Microphone

3) Push To Talk (PTT) switch

4) Push To Talk (PTT) switch

The microphone gain control on each of these stations is used to adjust for individual mi­crophones used with the system. It should be set to where normal audio levels are not
clipped on the outputs.

The buttons on the face of any four button PA stations can also be configured to mute
any full or half mute zone or raise or lower the volume of any volume control zone.

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. Up
to 18 pushbuttons are normally located on the microphone. Any button can be configured
to request any 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.

4) The Phantom PA Stations are used for automated announcements and automated 'emer­gency' spiels. In this application, instead of having a microphone attached to it, the
Phantom PA Station uses the output of one of the Digital Audio Repeater / Mixer cards (or
other source) as its input. This card is usually configured in the 'loop while' mode so that it will
loop as long as the start input is active. The enabling input for the Phantom PA Station comes
from the 'running status' output of this Digital Audio Repeater / Mixer card. When the
Repeater with the automated spiel on it is started by a switch closure on its start input, it au­tomatically selects the required PA Zone through the Phantom PA Station. The spiel will con­tinue until the enabling signal is released and the spiel has finished. In emergency spiel ap­plications, you may want to assign the Phantom PA Station a fairly low priority so that a live
person giving useful information can easily 'step' on the canned spiel. If the audio system is
being controlled by a serial data link from another computer or control system, serial com­mands can be used to select and start canned spiels and route them to the desired PA
Zones.

Messages which are recorded for use with the Phantom PA Stations should allow a sec­ond or two at their starts to allow time for the BGM volume levels to ramp down as the PA an­nouncement levels ramp up. The actual amount delay needed depends on the ramp rates
you have set in the PA Master.

The wiring needed by any PA Station is a single eight conductor modular style telephone cable. This
will normally provide all the power, communications, and audio signals to the PA Station. On some
longer runs (greater than 2500 feet), it may be necessary to add a local power supply to some PA
Stations. If absolute silence is required on the PA audio channel, then a shielded twisted pair is recom­mended for the microphone line.

All wires between the PA Stations and the MA-100 or MA-200 panels are transformer or opto-isolated.
MOV varistors can be used between each of the wires and chassis (earth) ground to provide lightning
protection if needed. Facing the end of the cable with the release latch upwards, its pin out is as follows:

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COLOR Signal NAME:

LEFT Gray + RS-422 Serial Data

Orange - RS-422 Serial Data

Black + 27 to 35 VDC Supply

Red Supply Ground
Green Supply Ground
Yellow + 27 to 35 VDC Supply

Blue Balanced Audio Signal

RIGHT Brown Balanced Audio Signal

If you are using manufactured cables, make sure that the signals are not ÔflippedÕ from end to end.
The color code above must read the same at both ends of any cable. Connectors are commercially
available for combining up to six of these signals into a single 50 conductor telephone cable.

The MA-100 must be linked to all MA-200s in a PA System by two ribbon cables. One of these is 40
conductors. The other is 50 Conductors. The maximum length between the MA-100 and the furthest MA­200 should be under 10 feet.

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Serial Port Connections and Communications:

The Intelligent PA System is communicated with a serial data line from your computer, terminal, or
control system. As the master for the audio system, it acts a a bridge for all communications with all
Digital Audio Repeaters, Smart Brick Systems, and anything else attached to it.

All characters are sent to the PA System in standard ASCII. All numeric values are sent in
HEXadecimal (HEX for short), and consist of one or more ASCII characters (0-9, A through F). The case
(as in upper and lower) of all input is important. A lower case 'a' signifies a command, while an 'A' is a
numeric value. If the PA System receives another command while it is waiting for additional input need­ed to complete the previous command, it will abandon the previous command and start working on the
new one.

In the following documentation any input you will send to the audio system is shown in outline. The
response to a command is shown in italics.

If the PA System is in a mode where you expect to receive some response from it, you must wait to
receive all of the characters you are expecting before sending the system a new command. The reason
for this is that you are potentially talking to hundreds of microprocessors at a time, and if you issue a
command which gives a response from one, and then a command which gives a response from a an­other before the first has finished, then the two may try to output data at the same time. This won't
cause any damage, but may result in garbled data at the receiver.

It is also possible to overload the PA System with too many commands through the serial port. You
don't want to take too much time away from it to service the serial port.

To communicate with the PA System through the serial port, you can use just about any computer or
terminal which has a serial port on it. Some newer computer designs, like the Apple Macintosh, come
with serial ports which are directly compatible with the RS-422 / RS-485 signal levels the PA System wants
to see. These signal levels are close enough to be used with the RS-232 signal levels found on most
older computers (like most IBM compatibles) with only a simple adapter cable, so long as the wire isn't
too long. To gain the full advantage of the RS-422 / RS-485 signal levels you will need to use a signal
level adapter.

If you are using a computer as a terminal you will need to run a modem or terminal emulation pro­gram. These will send everything you type on the keyboard out the serial port on your computer while
printing on the screen anything which comes in from the audio system through the serial port. A modem
program will usually have the advantage over a terminal emulation program in that it will allow you to
save data to your computer's disk drives and then send it back to the audio system at a later date. The
PA System uses no screen control codes or <ESC>ape sequences, so it should work on any machine
with a 80 column by 24 line display. Machines with other display formats will work, but may not look so
neat on the screen.

When configuring your modem program, you should set it for 9600 baud, 8 data bits, one stop bit,
and no parity. You must set your program not to insert an extra LineFeed (LF) character after each
Carriage Return (CR) it receives.

If you have hooked up the PA System to your computer and it still doesnÕt seem to respond to the
keyboard, the first thing to check is that you are attached to the right serial port on the PC. The easiest
way to do this is to disconnect the PA System and short between the Tx data out and Rx data in pins on
the serial port connector on the back of your computer. On all IBMs and compatibles this means sticking
a paper clip or similar object between pins 2 and 3 on the ÔCom.Õ connector. While still running the
modem program, anything you type should be shown on the screen while this paper clip is in place,
while nothing will appear when you remove it. If your computer passes this test, then you are using the
right serial port and the problem is most likely the baud rate setting or in your wiring to the PA System. If
you get characters on the screen even with the paper clip removed from the serial port, it means you
probably need to set the ÔechoÕ mode to ÔnoneÕ or Ôfull duplexÕ and try this test again.

The serial data signals from the PA System are brought out on the connector labeled 'TERMINAL
Input'. This is a 6 position RJ-11 (modular telephone style connector). Facing the end of the cable with
the release latch upwards, its pin out is as follows:

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COLOR Signal NAME:

LEFT White Signal Ground

Black - Serial Data OUT FROM PA SYSTEM

Red + Serial Data OUT FROM PA SYSTEM

Green - Serial Data IN to PA SYSTEM

Yellow + Serial Data IN to PA SYSTEM

RIGHT Blue Signal Ground

To cross wire the RS-422 / RS-485 signals from the PA System to the RS-232 serial port of an IBM com­patible, cross connect the signals as follows:

DB-25 DE-9 Signal Signal FROM/TO Audio SYSTEM

2 3 Data OUT - Serial Data IN to Repeaters (Green)
3 2 Data IN - Serial Data OUT FROM Repeater (Black)
7 5 Ground Signal Ground (Blue or White)

Apple Macintosh computers have true RS-422 serial ports built in. To connect to the PA System, the
pin out is as follows (view is of connector on the outside of a Macintosh):

from + serial data out from repeaters (red)

from - serial data out from repeaters (black)

The PA System expects to see the serial data in the following format

678

345

12

to + serial data in to repeaters (yellow)

to - serial data in to repeaters (green)

signal ground (white or blue)

ONE START BIT
EIGHT Data BITS
ONE or TWO STOP BITS

If the odd parity is enabled, then the data appears in the following format:

ONE START BIT
SEVEN Data BITS
ODD PARITY BIT
ONE or TWO STOP BITS

When the parity is enabled, any data with a parity error in it is simply ignored.

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Printer Port Connections and Communications:

The Intelligent PA System supports a single ÔPRINTER OutputÕ port. This can be attached to a printer or
CRT to log selected PA System activity. Connections to this serial port are similar to those used for the
TERMINAL Input port, except that instead of a data input line the printer port supports only a handshaking
line.

The Printer Output is also 6 position RJ-11 (modular telephone style connector). Facing the end of
the cable with the release latch upwards, its pin out is as follows:

COLOR Signal NAME:

LEFT White Signal Ground

Black - Serial Data OUT FROM PA SYSTEM

Red + Serial Data OUT FROM PA SYSTEM
Green - Clear to Send IN to PA SYSTEM
Yellow + Clear to Send IN to PA SYSTEM

RIGHT Blue Signal Ground

The printer port is set for 9600 baud, 8 bits of data, 1 stop bit, no parity.

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INTELLIGENT PA SYSTEM HARDWARE CONFIGURATION:

Each MA-200, including the one inside the MA-100, must be addressed before it is connected and
turned on. A 5 position dipswitch or a rotary switch (plus a 2 position dipswitch) on the back of each unit
is used to set which address the PA stations and Local Outputs on each MA-200 will respond to. With up
to 32 MA-200Õs attached to the system, the following are all of the possible settings for these switches:

MA-100 PA Station

or and

MA-200 5 4 3 2 1 Rotary Sw1 MA-100/200 Outputs

1 ononononon 0 00 through 07
2 on on on on open 0 08 through 0F
3 on on on open on 1 10 through 17
4 on on on open open 1 18 through 1F
5 on on open on on 2 20 through 27
6 on on open on open 2 28 through 2F
7 on on open open on 3 30 through 37
8 on on open open open 3 38 through 3F

9 on open on on on 4 40 through 47
10 on open on on open 4 48 through 4F
11 on open on open on 5 50 through 57
12 on open on open open 5 58 through 5F
13 on open open on on 6 60 through 67
14 on open open on open 6 68 through 6F
15 on open open open on 7 70 through 77
16 on open open open open 7 78 through 7F
17 open on on on on 8 80 through 87
18 open on on on open 8 88 through 8F
19 open on on open on 9 90 through 97
20 open on on open open 9 98 through 9F
21 open on open on on A A0 through A7
22 open on open on open A A8 through AF
23 open on open open on B B0 through B7
24 open on open open open B B8 through BF
25 open open on on on C C0 through C7
26 open open on on open C C8 through CF
27 open open on open on D D0 through D7
28 open open on open open D D8 through DF
29 open open open on on E E0 through E7
30 open open open on open E E8 through EF
31 open open open open on F F0 through F7
32 open open open open open F F8 through FF

The ÔOPENÕ position on each switch is towards the top of the case.

The MA-100 is usually addressed as #1, but can be set for any address desired so long as it doesnÕt

conflict with any MA-200.

The four serial ports on the MA-100 can each be configured to different baud rates using wire wrap

1

With the MA-100/200s with the address set with a rotary switch, the #2 dipswitch is set as shown for

the #1 switch column.

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