Mackenzie OPM-3SM User manual

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Return Address
MACKENZIE LABORATORIES, INC.
1163 Nicole Court
Glendora, CA 91740 USA
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OTHER MACKENZIE PRODUCT LINES
Digital Message Repeaters - Mackenzie's line of Digital Message repeaters are the ideal
audio announcement solutions for Public Address, Amusement, Entertainment, Museum
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variety of channel, connection, bandwidth and memory configurations are available.
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OVERHEAD PAGE MANAGEMENT
OPM-3SM
Multiple Channel Page Stacker, Feedback
Eliminator and Messaging System
User's Manual
Version 1.4, Revised: 19, January 2016
Doc 99-20-067
MACKENZIE LABORATORIES, INC.
1163 Nicole Court
Glendora, CA 91740 USA
Tel: [phone] Fax: [phone]
Email: [email protected]
Web: www.macklabs.com

General Safety Instructions
Always follow these basic safety precautions when using the system:
1. Read carefully and understand all instructions.
2. Follow all warnings and instructions marked on the product.
3. DO NOT block or cover ventilation slots and openings.
4. DO NOT place the product in a closed enclosure or cabinet unless proper
ventilation is provided.
5. Never spill liquid on the product or drop objects into the ventilation slots and
openings. Doing so may result in serious damage to the components.
6. Repair or service must be performed by a factory authorized repair facility.
7. A UL/CSA approved power pack is provided.
8. DO NOT staple or otherwise attach the power supply cord to building surface.
9. DO NOT use the product near or in wet or damp places, such as wet basements.
10. DO NOT use extension cords. Install within six feet of a grounded outlet
receptacle.
11. DO NOT install during lightning storm.
12. Never touch un-insulated wires or terminals unless the unit is disconnected from
both power and the rest of the phone system.
13. Use Caution when installing or modifying configuration switches or control lines.
14. The unit must be securely attached to a wall board, rack or table mounted.
CAUTION:
If any wiring from the system leaves the premises,
you must use proper electrical protectors.
Regulations:
FCC (Part 15) Radio Frequency Interference
The OPM-3SM generates and uses radio frequency energy and if not installed and
used in strict accordance with the manufacturer's instructions, may cause interference
to radio and television reception. Unit complies with the limits for Class A devices in
accordance with the specifications in Subpart J of Part 15 of the FCC Rules. This
testing is designed to provide reasonable protection against such interference.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause interference to radio or television reception,
which can be determined by turning the unit off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
-Reorient the radio or TV receiving antenna.
-Relocate the unit with respect to the radio or TV receiver or vice-versa.
-Plug the unit into a different outlet so that it and the radio or TV receiver are on
different branch circuits
-If necessary, the user should consult the dealer or an experienced radio/television
technician for additional suggestions.
Warranty & Registration Card for the
OPM-3SM - Page Stacker & Feedback Eliminator
Date:________________________
Serial No.: _______________________
Purchaser: ___________________________________________________
Address: ___________________________________________________
City: __________________
State: ______
Zip: ____________
Phone: __________________
Fax: __________
Email: ____________
Seller: _______________________________________________________
Address:_______________________________________________________
City: __________________
State: ______
Zip: ____________
Phone: __________________
Fax: __________
Email: ____________
Return warranty card via: FAX: [phone]
MAIL: Address on reverse side
ONLINE: www.macklabs.com/registration.html
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Table of Contents
1. OVERVIEW ........................................................................................1
1.1 Features and Capabilities................................................................ 1
1.2 General Specifications ....................................................................2
2. INSTALLATION & CONFIGURATION ..................................................... 3
2.1 Installation Steps.............................................................................3
2.2 Hardware Description...................................................................... 3
2.2.1 Status LED Indicators...................................................... 4
2.2.2 Power Input..................................................................... 5
2.2.3 Audio/Control Inputs, Channels 1-3 ................................5
2.2.4 Port Configuration Switch, Channels 1-3, PRI, MSG ......5
2.2.5 Priority Audio/Control Input ............................................. 6
2.2.7 Messaging Audio/Control Input ....................................... 6
2.2.9 Background Music Input Volume.....................................6
2.2.10 Background Music Input.................................................. 6
2.2.11 Audio Output Mode Switch..............................................7
2.2.12 Output Volume................................................................7
2.2.13 System Audio/Control Output..........................................7
2.2.14 Configuration Switches.................................................... 8
2.2.15 Messaging Playback Auxiliary Interface.......................... 12
2.2.16 Paging Control and Status Auxiliary Interface.................12
3. PAGE STACKING, FEEDBACK ELIMINATION OPERATION.................13
3.1 Page Recording...............................................................................14
3.2 Record Activation Methods ............................................................. 14
3.3 Playback ........................................................................................14
4 QUEUE ........................................................................................15
5 PRIORITY ........................................................................................15
6 MESSAGING, PRE-RECORDED............................................................. 15
7 BACKGROUND MUSIC INPUT ............................................................... 16
8 AUDIO OUTPUT...................................................................................... 16
9 WARRANTY, SERVICE & RETURNS .....................................................17
9.1 Warranty Coverage:........................................................................17
9.2 What we ask you to do:...................................................................17
9.3 What this warranty does not cover:................................................. 17
Shipping Container Contents
The following items should be found in the container of OPM-3SM:
▪OPM-3SM System
▪Installation and User Guide
▪Mounting screws
▪Wall mounted power pack, 12VDC @ 1 amp
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ii

1. OVERVIEW
1.1 Features and Capabilities
The latest addition in Mackenzie's Overhead Page Management(OPM)
series of products offers the increased functionality. The OPM-3SM is a
comprehensive system that combines Page Stacking, Feedback Elimination,
Pre-Recorded Messaging and Background Music control into a single
device.
PAGE STACKING/FEEDBACK ELIMINATION: For busy overhead paging
systems, the OPM-3SM offers 3 channels of page stacking and feedback
elimination. Each channel can record and temporarily store up to 16 pages
or 4 minutes of audio. Page input channels can record simultaneously, and
while the system is playing.
PRIORITY PAGING: For emergencies, the OPM-3SM offers a priority input
that overrides the stacking and messaging functions and provides
immediate, real-time access to the paging system.
PRE-RECORDED MESSAGES: For security and general public address
messaging, a pre-recorded messaging sub-system has been included.
Access both Record and Play functions of up to 99 messages/8 minutes of
audio from an extension on your host telephone system. Ten (10) start
contacts have also been provided to trigger messages from external devices
such as sensors or alarms.
BACKGROUND MUSIC: To keep everything in harmony, the OPM-3SM also
includes a background music input. This allows playback of your favorite
music source over the paging system. When a page or message is played,
the background music will be muted and the announcement will be heard
loud and clear.
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9. WARRANTY, SERVICE & RETURNS
The industrial grade housing and quality construction of the Mackenzie OPM-3SM virtually
eliminates the need for service or maintenance. There are no user-serviceable components
within the Mackenzie OPM-3SM. Refer all servicing to the factory.
9.1 Warranty Coverage:
The Mackenzie OPM-3SM is tested and checked before shipment and is guaranteed
against defective material or workmanship for a period of one (1) year from the date of
purchase. Should trouble ever develop, contact the Factory directly by telephone or in
writing. If it is determined that the equipment requires Factory service, return it to the
Factory. If our inspection shows that the trouble was caused by defective material or
workmanship, we will repair or replace the equipment without charge and return
prepaid. Repairs made necessary by abuse, improper use, unauthorized service or
maintenance, and/or improper installation, as well as out of warranty repairs, will be
charged at our regular repair prices in effect at the time. The obligation under this
warranty shall be limited to the replacement, repair or refund of any such defective
device within the warranty period, at Mackenzie’s discretion.
This warranty is in lieu of and excludes all other warranties, expressed or implied, and
in no event shall MACKENZIE be responsible for damage to other equipment or
property, for any anticipated profits, consequential damages, loss of item, or other
operation or use of this product, and MACKENZIE’S maximum liability shall not ever
be greater than the price paid for the equipment. This warranty gives you specific legal
rights. Your rights may vary from state to state. Inquiries regarding use, repair and
service should be made to:
MACKENZIE LABORATORIES, INC.
1163 Nicole Court, Glendora, CA 91740 USA
Telephone: [phone] / FAX No: [phone]
9.2 What we ask you to do:
To get warranty service for your OPM-3SM system, you must provide proof of the date
of original purchase. In the event you need to ship your OPM-3SM system to the
factory for service, call us for a return authorization number. When you ship your
OPM-3SM system, you must prepay all shipping cost. We suggest that you retain your
original packing material in the event that you need to ship your OPM-3SM system.
When sending your OPM-3SM system to the factory, include your name, address,
phone number, proof of date of purchase, and a description of the operating problem.
After repairing or replacing your OPM-3SM system, we will ship it to your return
address at no cost to you within the USA. Repair or replacement of your OPM-3SM
system at our factory is your exclusive remedy.
9.3 What this warranty does not cover:
This warranty does not cover defects resulting from accidents, damage while in transit
to factory, alterations, unauthorized repairs, failure to follow instructions, misuse, fire,
flood and acts of God.
1.2 General Specifications
AUDIO
Bandwidth
100Hz - 8kHz
Page Input
3, RJ12 connector, Station Port/Dry Loop/Loop Start
Priority Input
1, RJ12 connector, Station Port/Dry Loop/Loop Start
Messaging Input
1, RJ12 connector, Station Port/Dry Loop/Loop Start
Background Music
Input
Line level input with level control
Page output
1, RJ12 connector, 8ohm power/600ohm line
level(switch selectable), adjustable
PAGE STACKING
Message repeat
play one or two times, dip switch selectable
Delay between
messages
1s, 3s, 5s, 10s dip selectable
Stack
up to 16 messages per input
DTMF
Store/forward(0,2,3 or 4 tones) dip selectable
Pre-Page Tone
dip selectable
POWER
Power Pack
12VDC @ 1 amp, UL and CSA
MEMORY
Type
FLASH
Page Stacking
4 min per page input channel
Messaging
8 min
MESSAGE CONTROL
# of messages
99
Record Control
DTMF control from messaging input
Play Control
Triggered from DTMF on messaging input or start
contacts (10)
PAGE CONTROL
Priority
Control contact is offered on the Priority Input RJ
connector
Page Inputs
3, Page Input RJ connector. Each input answers
(loop, audio sense, DTMF)
STATUS OUTPUTS
Solid State Relay contacts 24VDC @ 100mA max
Playing Contact
Offered on the Page Output RJ connector
Record Contact
Offered on each Page Input RJ, as well as the
Message Input RJ
PACKAGE
Chassis:
Rack mount(1U)
Material:
18 gauge cold rolled steel, painted with silkscreen
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2. INSTALLATION & CONFIGURATION
This section provides complete instructions for mounting the OPM-3SM in a rack
or on a table. It also illustrates all interface requirements to auxiliary equipment,
including inputs and outputs. Configuration switch settings are provided.
2.1 Installation Steps
These are the general steps for installation:
1. Find a space in a rack or on a table. Mount the unit to the selected place
with it’s wiring at least 18” away from the power supply or other equipment
that generate electrical noise. Secure unit using the supplied mounting
screws.
2. Make sure there is a standard electrical outlet into which you can plug the
power pack. This outlet should NOT be controlled by a wall switch.
3. Make cable connections from the OPM-3SM to the PBX or audio source
and the Paging system,
4. Set DIP switches to the desired operation.
5. Connect the power supply. System OK LED should illuminate GREEN.
6. Test unit operation.
2.2 Hardware Description
FRONT
The OPM-3SM is a standard 1U 19” rack mount chassis.
The front panel of the OPM-3SM provides user indications of the system
status via LEDs. The description of each LED can be found in section 2.2.1
of this manual.
Configuration switches are also accessible on the front panel of the unit.
The description of the various user configurable settings can be found in
section 2.2.14 of this manual.
7. BACKGROUND MUSIC INPUT
The OPM-3SM allows for a background music source to be mixed with pages
and pre-recorded messages. Background music is muted when pages or pre-
recorded messages are played to the audio output. The BGM Level control
allows you to optimize the level music sent to the audio output.
8. AUDIO OUTPUT
The audio output of the OPM-3SM is the audio interface for your zone controller,
amplifier or public address system. All audio from the paging channels, priority
input, messaging system and BGM input is routed to this output. The OPM-3SM
manages stored pages on a first in, first out basis. This means that pages will be
played in the order they were successfully completed and or triggered,
independent of the particular input. Only the priority input has the ability to
interrupt the playback queue. In the case of a priority page, the system will pause
the playback queue during the priority page, and then continue when the page is
complete.
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4. QUEUE
The OPM-3SM incorporates a playback queue to manage the order that
messages play. This queue will manage up to 32 pages. Pages are put into the
queue on a first in, first out basis. The queue is compatible with pages from any
of the three page channels and/or the messaging input. The priority input offers
live, or direct, access to the output of the system. A priority page will pause the
playback queue. When the priority session completes, the queue will continue
from where it left off.
5. PRIORITY
The OPM-3SM offers a Priority input to gain immediate access to the public
address system. Activation of priority halts the playback of recorded pages.
When the priority page is completed, the OPM-3SM will resume playback from
the beginning of the message that was interrupted. Priority Activation methods
include Analog Station, Dry Loop and Loop Start. A valid connection via any of
these methods provides direct access to the system. Status of the Record
Activation switches is not relevant.
6. MESSAGING, PRE-RECORDED
The OPM-3SM offers a pre-recorded messaging system for quick and easy
access to standard or frequently used pages. This system allows messages to be
recorded and permanently stored in FLASH memory. Playback is provided via
DTMF command or contact closure. The messaging portion of the OPM-3SM can
store up to 99 messages in 8 minutes of memory.
DTMF Commands
Code
Name
Description
#
End
Use this function to stop recording or exit a
command
*0
Stop
Stop playing all triggered messages
*3xx
Delete
Delete message at location xx
*5xx -or- xx
Play
Play message at location xx to the audio output
*6xx
Review
Listen to a message through the handset. Audio is
NOT routed to the audio output
*7xx
Record
Record message into location xx. Recordings may
only be made to empty message locations. To
update a previously recorded message, make sure
to delete it first.
Connect to the messaging system with the desired mode, analog station, dry
loop or loop start. The Message Off Hook LED indicates that you are connected
to the system in Loop Start or Analog Station mode.
A steady tone indicates a correctly executed and accepted command. A fast
busy signal indicates an incorrectly executed command.
BACK
The back panel of the OPM-3SM provides all electrical connections to the
device. The connector type and signal descriptions are detailed later in this
manual.
Individual configuration of each audio input / output port is provided next to
each audio input connector.
Volume controls are provided for the BGM input and the audio output.
Flanges are provided on each side of the back panel of the OPM-3SM to
provide strain relief to all the wiring routed to the OPM-3SM.
2.2.1 Status LED Indicators
All Status Indicators are located on the front panel of the unit. The
different groups of LED indicators are described below:
2.2.1.1 System
The System indicators are global indicators that indicate that tell
the user that a particular function is active on any, or all, of the
inputs on the system.
System OK LED –Green indicates unit is ON. Flashing indicates an
error condition, contact the factory for more information should this
occur.
Recording LED - Red, indicates that a recording session is active on
any one of the paging inputs.
Playing LED - Green, indicates that the audio output of the OPM-3SM
is active due to a page playing back, or the priority input being active.
Busy LED - Yellow, indicates that any one of the paging inputs
recording, playing, or in a delay mode. This LED is also active when
a priority announcement is being made.
2.2.1.2 Message input
Messaging Input Off Hook LED - Yellow, indicates the messaging
system is being accessed via a phone circuit. (Loop current flowing)
Messaging Input Level LED - Yellow, indicates audio signal is present
on the Message Input.
2.2.1.3 Priority input
Priority Input Off Hook LED - Yellow, indicates the priority channel is
being accessed via a phone circuit. (Loop current flowing)
Priority Input Active LED - Yellow, indicates the priority channel is
active.
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2.2.1.4 Paging Input Channels (Channel 1,2,3)
Off Hook LED - Yellow, indicates the priority channel is being accessed
via a phone circuit. (Loop current flowing)
Audio Sense LED - Yellow, indicates audio signal is present on that
particular Page port.
Record LED - Red, indicates that the particular Paging channel is
recording a message.
Play LED - Green, indicates that the particular Paging channel is
playing a message.
2.2.2 Power Input
Unit requires 12 VDC @ 1amp via the barrel connector. Only use the
factory supplied power pack. The chassis is connected to negative side
of power supply.
2.2.3 Audio/Control Input, Paging Channels 1 - 3
RJ12 style connector, 6 position. All pages to be recorded are input to
the device through these connectors
1. Abort, stops and deletes the recording when
connected to Ground (Pin 5).
2. Record input, connect to Ground(Pin 5) to
activate. Unit records for duration of closure.
3. Audio, ring/return.
4. Audio, tip/signal.
5. System Ground, (power return).
6. Not used.
2.2.4 Port configuration Switch, Paging Channels 1 –3, Priority
Input, Message Input
A three position slide switch is provided for each of the five inputs
from the paging system: Channel 1, 2, 3, Priority, and Message.
The switch configures the particular port to meet the requirements
of the paging system.
Analog Station - LEFT Position. Impedance 900 ohm, voltage for ring
trip 75 - 105V (20 - 60Hz).
Dry Loop - Center Position. Configures audio input for 600ohm, line
level (-10dB nominal).
Loop Start - RIGHT Position. Configures priority audio input for
900ohm and supplies 24VDC talk battery. Compatible with loop start
trunk ports.
3.1 Page Recording
Upon receiving a valid recording signal, the OPM-3SM will start recording at
the beginning of the memory until the page is complete. While this page is
playing, new pages can still be recorded. Multiple pages will be recorded in
series until the playing message has completed its play routine.
Multiple channels may be recording incoming pages at the same time.
Playback order of pages is based on when the recording process is
complete. For example, if a long message is being recorded on channel 1,
and during that process a short message is recorded and completed on
channel 2, the playback order will be the message on channel 2 then the
message on channel 1.
3.2 Record Activation Methods
There are several methods to initiate automatic record mode on the
OPM-3SM. The activation mode will be selected by the Setup Switches upon
power up. It cannot be changed during normal operation.
Loop Current detect - Setup Switches 1=OFF, 2=OFF
If an input’s input configuration switch is set for loop start mode, the OPM-
3SM will source the talk battery(24VDC) to the ring and tip, and then sense
the loop current when phone goes off hook and start the recording process
for the duration of the page. Valid for Analog Station and Loop Start modes.
Audio Sense - Setup Switches 1=OFF, 2=ON
For record activation without a separate switch closure or loop current. The
OPM-3SM will start recording when the audio sensor goes active and will
stop when the audio sensor is inactive for three seconds. Valid for Analog
Station, Loop Start and Dry Loop modes.
DTMF Activation - Setup Switches 1=ON, 2=OFF
For record activation without a separate switch closure and perhaps noisy
audio lines. The OPM-3SM will start recording when it “sees” a valid DTMF
tone and will stop when the audio sensor is inactive for three seconds. Valid
for Analog Station and Loop Start modes. The DTMF tone used to activate
the recording will be stripped and not output when the message is played.
Manual Recording - Available in all modes - Typically associated with Dry
Loop mode, this method enables the OPM-3SM to begin recording with a
switch closure between pins 2 and 5 of the RJ12 connector of a particular
channel.
3.3 Playback
The OPM-3SM can be configured to automatically playback pages after their
record process has completed. This mode is configured by setting Setup
Switch 8 to OFF.
The OPM-3SM may be configured for manual or switch closure
playback(Setup Switch 8=ON) when you want full control of when pages will
playback. Playback is triggered via a momentary closure(100ms) between
pins 1 and 5 of the Paging Control and Status Auxiliary Interface.
5
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6
Not Used
Not Used
7
Busy Common
Common for the busy relay
8
Busy Relay
Activates when system is recording or
playing a message.
9
Playing Common
Common for the Playing Relay.
10
Playing Relay
Activates when system is playing.
11
Recording Common
Common for the Recording Relay.
12
Recording Relay
Activates when the system is
recording.
3. PAGE STACKING, FEEDBACK ELIMINATION OPERATION
The OPM-3SM offers 3 channels of page stacking, intended for busy paging
systems with multiple inputs. Each channel performs the following functions:
1.It eliminates feedback by recording the incoming page(s), then playing them
back after the user “hangs up”, eliminating any feedback loop.
2.It is able to repeat each page allowing for better intelligibility in a noisy
environment.
3.It is capable of stacking up to 16 incoming pages per channel by recording
incoming pages while playing back previously recorded ones on a first-in first-
out basis.
Constraints:
-Each page is allowed a maximum of 1 minute recording time. Pages exceeding
this will be aborted and a busy back tone is generated.
-Recordings that reach the end of memory are considered incomplete. These
pages are aborted and a busy back tone is generated. If the memory is filled
and a new recording command is offered, the OPM-3SM will not go into record
mode and a busy back tone will be output to tell the user that the system not
available.
-The recorded message must be a minimum of one second in length. Any
message shorter than this will be aborted.
-The OPM-3SM aborts pages that are comprised of 3 or more seconds of
silence. The page is deleted and a busy back tone is generated.
Other important features include the ability to Record/Regenerate, or Block
DTMF tones for use in zone controller applications.
The OPM-3SM is designed to run in both Automatic and Manual modes. For
paging applications the Automatic mode is the most widely used. This mode
requires minimum installation time since it is the factory’s default setup. RJ12
connectors are used for Audio inputs and outputs. Where logical, certain control
signals are also provided on the individual RJ12 connectors associated with each
input.
2.2.5 Priority Audio/Control Input
RJ12 style connector, 6 position. Priority pages are input to the device
through this connector.
1. Not used.
2. PRIORITY input, connect to Ground (Pin 5) to
activate. Priority active for duration of closure.
3. PRIORITY Audio, ring/return.
4. PRIORITY Audio, tip/signal.
5. Ground. (power return).
6. Not used.
2.2.7 Messaging Audio/Control Input
Input, RJ12 style connector, 6 position. Operation of the messaging
portion of the system is provided through this interface.
1. Not used.
2. Not used.
3. Audio, ring/return.
4. Audio, tip/signal.
5. Not used.
6. Not used.
2.2.9 Background Music Input Volume
Controls the background music input volume level delivered to the audio
output. Adjusting this input clockwise increases the level, and counter-
clockwise rotation decreases the level of the background music.
2.2.10 Background Music Input
RCA jack, Input audio level should be set to a nominal level of 0dBv, or
less. Tip is audio signal and sleeve is audio return.
Any audio input at this port will be fed through the system to the audio
output whenever the system is idle.
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2.2.11 Audio Output Mode Switch
A two position slide switch allows the user to configure the audio output
to match the needs of their downstream equipment.
The RIGHT position sets the output to line level (+4dB/600ohm). Use
this position as default.
The LEFT position sets the output to power level (500mW/8ohm). Use
this for longer runs, or if not enough level can be reached with the line
level output.
2.2.12 Output Volume
Controls the audio output volume level delivered to the paging system. It
is shipped with 1:1 gain factory set.
Adjusting this input clockwise increases the level, and counter-clockwise
rotation decreases the level of the device
2.2.13 System Audio/Control Output
Output, RJ12 style connector, 6 position. All audio from the OPM-3SM
is output through this port
1. Not used.
2. Playing Relay, Normally Open.
3. Audio Return.
4. Audio Signal.
5. Playing Relay, Common.
6. Not used.
The playing relay contacts available on this connector are paralleled
with the connections on the Paging Control and Status Auxiliary
Interface, positions 9 and 10.
Delay Between Plays
To make the page sequence more intelligible,
a pause can be inserted between each
message in the playback sequence as well as
between any repeats of each message.
11
12
*1 second
3 seconds
5 seconds
10 seconds
2.2.15 Messaging Playback Auxiliary Interface
Top row of 12 inputs on the Auxiliary Interface. This interface allows
playback of pre-recorded messages through a momentary closure
(100ms). Each closure between a Play input and Ground will play the
corresponding message one time. Multiple closures on a single input or
several inputs will queue the messages and the system will play them in
the order received.
12 position Euro-style, two piece, pluggable type.
Pin
Name
Description
1
Ground
Common
2
Play 1
Plays message 1 when connected to ground
3
Play 2
Plays message 2 when connected to ground
4
Play 3
Plays message 3 when connected to ground
5
Play 4
Plays message 4 when connected to ground
6
Play 5
Plays message 5 when connected to ground
7
Play 6
Plays message 6 when connected to ground
8
Play 7
Plays message 7 when connected to ground
9
Play 8
Plays message 8 when connected to ground
10
Play 9
Plays message 9 when connected to ground
11
Play 10
Plays message 10 when connected to ground
12
Not Used
Not Used
2.2.16 Paging Control and Status Auxiliary Interface
Bottom row of 12 inputs on the Auxiliary Interface. Allows manual
access to many of the common inputs and status outputs of the system.
12 position Euro-style, two piece, pluggable type.
Pin
Name
Description
1
Ground
Common
2
Not Used
Not Used
3
Priority
Initiates priority page when connected
to ground.
4
Stop
Stops any currently playing message
when connected to ground.
5
Play
Plays next message in queue when
connected to ground.
7
12