
General Safety Instructions
If any wiring from the system leaves the building
premises, you must use proper electrical protectors.
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. DO NOT staple or otherwise attach the power supply cord to building surface.
8. DO NOT use the product near or in wet or damp places, such as wet basements.
9. DO NOT use extension cord. Install within 6 feet of a grounded outlet receptacle.
10. DO NOT install during lightning storm.
11. Never touch un-insulated wires or terminals unless the unit is disconnected from both power and the
rest of the phone system.
12. Use Caution when installing or modifying configuration switches or control lines.
13. The unit must be securely attached to a wall board, rack or table mounted.
Regulations:
FCC (Part 15) Radio Frequency Interference
The M3 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.

Table of Contents
1 OVERVIEW ................................................................................................................................................... 4
1.1 Features and Capabilities ...................................................................................................................... 4
1.2 General Specifications ........................................................................................................................... 5
1.3 Hardware Configurations ....................................................................................................................... 6
1.3.1 M3.1 ............................................................................................................................................... 6
1.3.2 M3.1+1 ........................................................................................................................................... 6
1.3.3 M3.2 ............................................................................................................................................... 6
2 Installation & Configuration ........................................................................................................................... 7
2.1 Installation Steps ................................................................................................................................... 7
2.2 Base model, M3.1, Configuration and Features .................................................................................... 7
2.2.1 Power Entry .................................................................................................................................... 7
2.2.2 Channel 1, Audio Output ................................................................................................................ 7
2.2.3 Channel 1, Audio Level Adjustment ............................................................................................... 8
2.2.4 Channel 1, Playing Relay ............................................................................................................... 8
2.2.5 Channel 1, Remote Control ............................................................................................................ 8
2.2.6 Channel 1, Playing LED ................................................................................................................. 8
2.2.7 Configuration Switches .................................................................................................................. 9
2.2.8 Play Mode: ................................................................................................................................... 10
2.2.9 RS-232 Hardware Configuration: ................................................................................................. 11
2.2.10 USB Connector ............................................................................................................................ 11
2.3 M3.1+1 Enhanced Configuration and Features: .................................................................................. 11
2.3.1 Channel 2, Audio Out: .................................................................................................................. 11
2.3.2 Channel 2, Audio Level Adjust: .................................................................................................... 11
2.3.3 Channel 2, Playing Relay: ............................................................................................................ 12
2.3.4 Channel 2, Remote Control: ......................................................................................................... 12
2.3.5 Channel 2, Playing LED ............................................................................................................... 12
2.4 M3.2 Enhanced Configuration and Features: ...................................................................................... 13
2.4.1 Channel 1, Remote Control, 11 - 20: ........................................................................................... 13
3 Audio File Formatting and Naming .............................................................................................................. 13
4 RS-232 Commands: .................................................................................................................................... 14
4.1 System Functional Commands ............................................................................................................ 14
4.2 System Configuration Commands ....................................................................................................... 14
4.3 System Description Commands .......................................................................................................... 14
4.4 Enhanced System commands ............................................................................................................. 14
4.5 RS232 Command Syntax .................................................................................................................... 15
4.5.1 Play Snippet Command ............................................................................................................... 15
4.5.2 Stop Command ............................................................................................................................ 15
4.5.3 System Reset Command ............................................................................................................. 16
4.5.4 Initiate Upload File (Read from M3) ............................................................................................. 16
4.5.5 Initiate Download File (Write to the M3) ...................................................................................... 16
4.5.6 Delete File .................................................................................................................................... 16
4.5.7 RS232 Serial Port Speed ............................................................................................................. 17
4.5.8 Restore Default Configuration ...................................................................................................... 17
4.5.9 Format SD Card ........................................................................................................................... 17
4.5.10 Format SD Card and Restore Factory Defaults ........................................................................... 18
4.5.11 Set Delay Before Play .................................................................................................................. 18
4.5.12 Set Pause Between Plays ............................................................................................................ 18
4.5.13 Set Number of Plays .................................................................................................................... 19
4.5.14 Set Message Priority .................................................................................................................... 19
4.5.15 Display system information .......................................................................................................... 20
4.5.16 Command Listing ......................................................................................................................... 20
4.5.17 Display Message Listing .............................................................................................................. 21
4.5.18 Set Time of Day ........................................................................................................................... 21
4.5.19 Set Date ....................................................................................................................................... 21
4.5.20 Set Bass Amount ......................................................................................................................... 22
4.5.21 Set Treble Amount ....................................................................................................................... 22
4.5.22 Update Firmware .......................................................................................................................... 22
5 Memory Card Removal/Installation: ............................................................................................................ 23
5.1 Capacity, Data Rates and Part Numbers:............................................................................................ 23
6 WARRANTY, SERVICE & RETURNS ........................................................................................................ 23
6.1 Warranty Coverage: ............................................................................................................................. 23
6.2 What we ask you to do: ....................................................................................................................... 23
6.3 What this warranty does not cover: ..................................................................................................... 23

Shipping Container Contents
Single Balanced Stereo audio channel, 10 message
input selections, RS232, wall mount package
Dual Balanced Stereo audio channels, 10 message
input selections each, RS232, wall mount package
Single Balanced Stereo audio channel, 20 message
input selections, RS232, wall mount package
M3 Rack Mount packaging. 1U package contains power
supply and houses up to 4 M3 modules. Must be
ordered as a system, not field upgradable.
The following items should be found in the packaging of the Digital Audio Record/Play System:
M3 System
Installation and User Guide
Set of four rubber feet
Optional Accessories:
M3-PS - 12VDC 1.0 amp power pack
M3-SW, Composer software
Larger capacity SD Card memories
M3-RM-x - M3 rack mount packaging. 1U package contains power supply and houses up to
4 M3 modules. Must be ordered as a system, not field upgradable.
1 OVERVIEW
1.1 Features and Capabilities
The Mackenzie M3 system is the most flexible series of high fidelity, multi-channel solid state digital
audio playback systems available to the industry. The M3 is backed by Mackenzie’s years of system
design experience.
The M3 retrieves MPEG (MP3) or WAV audio data from non-volatile SD Card memory, eliminating
the need for battery backup, and delivers superb full bandwidth sound quality.
The M3 is offered in the following configurations:
Messages are stored on SD Card memory cards (1GB included). Messages are randomly and
instantly accessible. Messages are stored as FAT formatted, allowing each of the messages to be of
different duration and allows replacement messages to be a different length than the original,
maximizing memory efficiency and compatibility with future applications.
Messages can be stored in MPEG I, Layer III, or WAV file formats. Composer software allows a
Windows computer to create entire programs with .WAV files then converts them to MPEG. The
MPEG files then may be copied to the SD card from the computer or downloaded directly to the M3
over the RS232, or USB port.
Message playback is controlled by simple contact closures or by RS232 commands. Audio outputs
are balanced and level is controlled via potentiometers. Form C relay connections are provided to
indicate that the M3 is playing on each audio channel.
The M3 offers several different playback modes to accommodate different applications. Play/repeat,
Play once per closure, Play while active, and Retrigger allow the user to customize input logic.
Message repetition and delay between messages is user selectable as well.
The M3's small size, industrial construction and the absence of moving parts makes it ideal for
automatic unattended operation, especially in harsh environmental or mobile conditions.

1.3 Hardware Configurations
Channel 1 Left channel balanced audio output
Channel 1 Right channel balanced audio output
Channel 1 Playing Relay (Form C)
Stop contact (Channel 1)
Start contacts 1 - 10
Input Common
Power Connection
Channel 1 Audio Level Adjustments, L/R
Channel 1 Playing LED
Configuration Switches
RS232 Connection
The M3.1+1 Interface includes those listed above in section 1.3.1, plus those listed below:
Channel 2 Left channel balanced audio output
Channel 2 Right channel balanced audio output
Channel 2 Playing Relay (Form C)
Stop contact (Channel 2)
Start contacts 1 – 10 (Channel 2)
Input Common
Channel 2 Audio Level Adjustments, L/R
Channel 2 Playing LED
The M3.2 Interface include those listed above in section 1.3.1, plus those listed below:
2nd Stop contact (Channel 1)
Start contacts 11 - 20
2nd Input Common
1.3.1 M3.1
Single Balanced Stereo audio channel, 10 message input selections, RS232, wall
mount/table top package.
1.3.2 M3.1+1
Dual Balanced Stereo audio channels, 10 message input selections each, RS232, wall
mount/table top package.
1.3.3 M3.2
Single Balanced Stereo audio channel, 20 message input selections, RS232, wall/table top
mount package.

2 Installation & Configuration
Left audio output, inverting
Left audio output, non-inverting
Right audio output, inverting
Right audio output ground
Right audio output, non-inverting
This section provides complete instructions for mounting the M3 High Fidelity Multi-Channel Digital
Audio Player on a Wall or shelf. 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 on the wall or table. For table top applications, install included rubber feet.
Allow approximately 6 inches in front of, and 6 inches in back of the unit for user access to
memory and wiring.
2. Mount the unit to the selected place with its wiring at least 18” away from power supply or
other equipment that generates electrical noise.
3. If you are using the optional power supply, make sure there is a standard electrical outlet
available.
4. Connect audio outputs.
5. Connect control inputs and outputs.
6. Set DIP switches to the desired operation.
7. Verify memory is installed. Refer to Section 5 for additional information on checking memory.
8. Connect and apply power.
9. Test unit operation.
2.2 Base model, M3.1, Configuration and Features
This section documents the features and functions common to all versions of the M3.
2.2.1 Power Entry
2 terminal pluggable connector.
The plug is a rising clamp style termination that accepts up to 16 gauge wire. To insert wire
loosen the screw on the top of the plug, insert the wire into the side of the plug, then tighten the
screw.
2.2.2 Channel 1, Audio Output
Two 3 terminal pluggable connectors.
M3 supports balanced audio output. If unbalanced (single ended) is desired, use audio output
non-inverting and audio output ground.
The plug is a spring clamp style termination that accepts up to 16 gauge wire. To insert wire,
insert a Jewelers Screwdriver into the upper section of the connection until the spring clamp
opens in the lower section. Insert the uninsulated wire, and remove the screwdriver causing the
clamp to grab the wire.

2.2.3 Channel 1, Audio Level Adjustment
Connect to common to stop message playback
Connect to common for message 1 playback
Connect to common for message 2 playback
Connect to common for message 3 playback
Connect to common for message 4 playback
Connect to common for message 5 playback
Connect to common for message 6 playback
Connect to common for message 7 playback
Connect to common for message 8 playback
Connect to common for message 9 playback
Connect to common for message 10 playback
Connecting any input to common activates the function
M3 is not playing or no power supplied to the unit
M3 is playing on Channel 1
M3 is executing other functions
Two potentiometers adjust playback level of the left and right channels
individually. Range is continuous from -infinity to +3dBm.
2.2.4 Channel 1, Playing Relay
Playing relay is a Form C contact closure. This contact is activated for the length of
the playing message and is released when the message ends or is stopped. The
playing relay is capable of handling 1A at 24VDC or 0.25A at 110VAC, non-inductive
load.
The plug is a spring clamp style termination that accepts up to 16 gauge wire. To insert wire,
insert a Jewelers Screwdriver into the upper section of the connection until the spring clamp
opens in the lower section. Insert the uninsulated wire, and remove the screwdriver causing the
clamp to grab the wire.
2.2.5 Channel 1, Remote Control
12 position pluggable terminal strip. Use for remote control start of
message playback and stopping messages.
The plug is a spring clamp style termination that accepts up to 16 gauge wire. To insert wire,
insert a Jewelers Screwdriver into the upper section of the connection until the spring clamp
opens in the lower section. Insert the uninsulated wire, and remove the screwdriver causing the
clamp to grab the wire.
2.2.6 Channel 1, Playing LED
Green LED which indicates the playing and boot status of the M3.