Stop & Listen MMR User manual

Stop and Listen Multi-Message Recorder: Operating Instructions Page
1
OPERATING INSTRUCTIONS
MULTI-MESSAGE RECORDER
STOP AND LISTEN INC.
CONTENTS
Configuration ...................................... pg 1
Product Overview ............................... pg 2
Making the Right Connections ............ pg 3
Recording Made Easy ...................... pg 4-5
Playback! ............................................ pg 6
Care and Cleaning ............................. pg 7
Specifications ..................................... pg 8
CSA/FCC Notification ......................... pg 8
TroubleShooting Guide ...................... pg 9
Wiring Harness Color Coding ........... pg 10
Connections Diagram ....................... pg 11
CONFIGURATION
Your new MMR can be configured in various different ways, depending on how a series of
internal dip switches in the DMR II base unit have been set during manufacture. These
switches are used to select digital sampling rate and maximum message duration. This unit
has been pre-configured as indicated below:
SERIAL NUMBER (MMR) ________________
SERIAL NUMBER (base unit) ________________
MAX. MESSAGE DURATION PER SLOT 40 / 60 / 80 / 120 (sec.)
DIGITAL SAMPLING RATE (kbps) 32 / 37 / 50 / 70
Dip settings should only be changed by a qualified service technician. Refer to the Internal Select Table on the
CONNECTIONS DIAGRAM for switch settings options witthin the DMR base unit. There is also an internal tone
control that should be re-adjusted for audio fidelity if the above settings are changed.
REC/PB STARTSTOP VOL (+)VOL (-)
S
I
G
N
A
L
V
O
L
U
M
E
STOP & LISTEN
DIGITAL MESSAGE RECORDER II
1
2
SELECTSTARTSTOP
8
STOP & LISTEN
MULTI MESSAGE RECORDER

Stop and Listen Multi-Message Recorder: Operating Instructions Page
2
OVERVIEW
The MMR is a solid-state monaural audio recording and playback device that operates much
the same as a tape recorder. Because it is solid state there are no parts to wear out,
ensuring year after year of trouble free service, with no loss in fidelity. The MMR system
uses a Digital Message Recorder as a base unit and is connected via a 25 pin data
connector. The MMR unit itself contains the actual memory chips that store the audio
information, while the DMR base unit handles digital conversion, audio amplification and
memory 'housekeeping' tasks.
The MMR is capable of recording and storing 8 separate audio tracks of up to 2 minutes
duration each, depending on how a series of internal dip switches in the base unit have been
set. Though capable of storing 8 messages, only one can play back at a time.
Audio is loaded into the MMR from an audio source with a line level or headphone output
and is then converted into a digital format and stored on state-of-the-art DRAM memory
chips. On playback audio is converted back into it's original (analog) form.
An internal memory backup battery maintains standby power to the memory, ensuring that
messages are safe even after a long power failure. An automatic float-charging system is
built-in to maintain the internal battery in peak condition.
The internal amplifier allows the base unit to play back directly into an external speaker with
no need for additional equipment. A line level output is provided for applications where the
audio will be played back through other equipment.
Playback is initiated using a number of different methods, whether from the front control
panel or from a variety of external switches or triggering devices.
At Stop and Listen we have gone to great lengths to ensure that your new MMR represents
the ultimate in durability and ease of use. As you become more familiar with the MMR you
will find that the on-board recording features can add a whole new dimension to your
application. You will soon be able to communicate much more effectively with your audience.
BEFORE YOU BEGIN:
Prior to connecting your Multi-Message Recorder (MMR) we recommended that you read
through these instructions from beginning to end to familiarize yourself with the installation
and operation of the device. Remember to keep these instructions (along with the original
shipping cartons) in a safe place for future reference. Notify your shipping company or your
dealer immediately if any shipping damage is evident.
In the package(s) you will find:
• Pkg #1 - the Digital Message Recorder Base Unit
• Pkg #1 - Power Adapter - 12 volt DC, 1000 mA
• Pkg #1 - Audio Input Cord - 1/8” stereo mini plug to phono (RCA) plug
• Pkg #1 - Audio Patch Cord - phono (RCA) plug to phono (RCA) plug
• Pkg #1 - Auto-Repeat (looping) Jumper
• Pkg #1 - These instructions
• Pkg #2 - the Multi-Message Recorder Module
• Pkg #2 - DB25 pin male x DB25 pin male Interconnect Cable
• Pkg #2 - Switch Harness Connector (DB25 male one end)

Stop and Listen Multi-Message Recorder: Operating Instructions Page
3
SECTION 1: MAKING THE RIGHT CONNECTIONS
Check with your supplier to ensure that the Digital Message Recorder that you will be using
as the base unit has been configured properly for operation with a Multi-Message Recorder.
This consists of removing the memory chips and re-setting the DIP switches internally in the
Digital Message Recorder. Re-configuring should be done only by a qualified service
technician.
1.1 Ensure that the (Memory) Backup switches on the back of the units are in the OFF
position and power is disconnected. Connect the Interconnect Cable from Port A on the base
unit (DMR) to Port A on the Multi-Message Recorder (press firmly) and secure with the
captive screws - do NOT over tighten.
1.2 Plug the power adapter (supplied) into an unswitched 120 volt wall outlet and plug it
into the power jack on the back of either the DMR base unit OR the MMR. Power will be
supplied to the other unit via the Interconnect Cable. The LED indicator lights on the front
panels will be illuminated indicating that there is power.
1.3 Make sure the battery BACKUP switches on both units, located on the
rear panels, are in the ON position. This will ensure that messages won't be
accidentally erased, even during extended power disruptions (or as long as 12
days). Once power is re-established, the internal backup system will recharge automatically.
If you plan to store the units for longer periods, these switches should be turned OFF to
preserve the internal batteries. Remember to turn them back ON before putting the units
back into service.
1.4 Leave the units plugged in overnight with the BACKUP switches ON to ensure the
backup system is fully charged. (The system will act erratically if they have not been
sufficiently charged.) It is advisable to allow the units to charge in this manner after any
extended period that they have not been plugged in.
1.5 Prior to connecting the Switch Harness Connector to the MMR, ensure that all switch
connections have been made in strict accordance with the color coding chart provided, and
that there are no shorted wires or exposed conductors.
It may be necessary to pigtail more than one switch to the +5 volt feed wires if more than 4
external switches will be used. Ensure that this harness is installed with suitable strain
relief's to avoid putting undue strain on the wire connections.
If you wish, we can pre-assemble and test switch harnesses to your specification. Please call
for assistance.
1.6 If you are using optional equipment such as triggering devices, usage counters, etc.,
refer to the literature supplied with that equipment for additional connection details.
1.7 For speakers, connect positive lead to the terminal marked SPKR (+) on the base unit
and the negative lead to the terminal marked SPKR (-).
BA CK UP
ONOFF

Stop and Listen Multi-Message Recorder: Operating Instructions Page
4
SECTION 2 - RECORDING MADE EASY
2.1 Ensure that the audio source is connected to the LINE IN jack of the base unit as
shown in the CONNECTIONS DIAGRAM and that the external start switches have been
temporarily disconnected or disabled
2.2 Press the REC/PB (record/playback) button on the DMR
base unit until the red (record) indicator light turns on.
NOTE The START and STOP buttons on the MMR unit itself
take precedence over the START and STOP buttons on the DMR
base unit, which are used only for stand alone applications.
2.3 Set the output level of the Source (typically a cassette recorder is
used). Only peak levels of audio should light up the top sectors of the
SIGNAL indicator on the DMR base unit. Normally only the bottom 3-5
sectors will stay lit continuously. Note that the volume setting on the DMR
base unit has no bearing on the incoming (source) level.
The MMR system has a monitor feature that allows you to hear what is being recorded
through the external speaker. If distortion is apparent through the monitor feature, the input
level is too high and should be reduced accordingly. (Otherwise extreme distortion may
occur on playback due to “digital clipping”).
TIP A good rule of thumb is to use as much input level as possible without going into
clipping. It is not possible to damage the unit by overdriving the input.
2.4 Press the SELECT button on the MMR until the indicator shows
the track that you wish to record (1-8). Tracks do not have to be
recorded in any particular order: eg. you can record track 6 before track
3, etc.
2.5 Press the STOP button on the MMR - this prepares the MMR for
recording. Cue the audio source to the point at which you wish the recording
to begin.
2.6 Press the START button on the MMR to begin the recording process
and start the audio source. (Any new recording will overwrite any existing
recording on that track). When you have finished recording the message
press the STOP button on the MMR to end the recording process. (the
START and STOP buttons on the DMR base unit are not used).
............Continues
REC/PB STARTSTOP VOL (+)VOL (-)
1
2
REC/PB STARTSTOP VOL (+)VOL (-)
1
2xx
S
I
G
N
A
L
NORMAL
RANGE
}
}AUDIO
PEAKS
8SELECTSTARTSTOP
SELECTSTARTSTOP
SELECTSTARTSTOP

Stop and Listen Multi-Message Recorder: Operating Instructions Page
5
Section 2 - Recording Made Easy (cont'd)
2.7 Additional tracks are recorded by repeating steps 2.4 through 2.6. Re-recording over
any one track will not affect the contents of other tracks.
N.B. - Unused tracks should be recorded with a bit of blank using the above
procedures to ensure the memory chips are not left in a 'null' state.
2.8 Press the REC/PB button on the DMR base unit to put the system back into the
Playback mode.
Your recordings are now held in digital memory and will remain so until you wish to record
something else. The Multi-Message Recorder will retain these messages in memory
indefinitely unless the power to the unit is disconnected for a period of longer than 12 days.
Should the units be left unplugged for a long period it is recommended the unit be plugged in
for a minimum of 24 hours prior to re-recording to ensure the internal backup system is
adequately charged.
REC/PB STARTSTOP VOL (+)VOL (-)
1
2

Stop and Listen Multi-Message Recorder: Operating Instructions Page
6
SECTION 3 - PLAYBACK !
3.1 Press the REC/PB button on the DMR base unit until the
green playback indicator light is selected.
3.2 Press the SELECT button on the MMR unit to select the track you
wish to play.
3.2 Press the START button on the MMR unit to begin playback and
set the VOLUME controls to the desired listening level. The external
start switches can also be used to start playback at this point.
NOTE The START and STOP buttons on the MMR unit itself
take precedence over the START and STOP buttons on the DMR
base unit, which are used only for stand alone applications.
3.3 Press VOL(+) to increase the volume and VOL(-) to
decrease the volume. Small increments in volume can be attained
by using short taps on the buttons. The volume setting is
displayed in the VOLUME indicator. (The DMR base unit will
“remember” the volume setting you have selected on every
subsequent playback, even if the DMR II remains unplugged
over a period of time.)
3.4 The message can be stopped during playback by pressing STOP
on the front panel of the MMR unit.
Note The Multi-Message Recorder has been designed so that message(s) can not be
stopped or interrupted from any external start switches to avoid any interruptions during
playback.
TIP If a delay is desired before the audio track begins, simply leave a bit of blank space
at the beginning of the audio track when making the recording.
DIFFICULTIES?? - CALL OUR TECHNICAL SUPPORT LINE
TOLL FREE
1-800-387-2365
REC/PB STARTSTOP VOL (+)VOL (-)
1
2
8SELECTSTARTSTOP
8SELECTSTARTSTOP
REC/PB STARTSTOP VOL (+)VOL (-)
1
2xx
REC/PB STARTSTOP VOL (+)VOL (-)
1
2
OR
8SELECTSTARTSTOP

Stop and Listen Multi-Message Recorder: Operating Instructions Page
7
CARE AND CLEANING
Your new Multi-Message Recorder has been designed and constructed for the utmost
in quality and durability. Because of it’s 100% solid-state design, the only thing you
should ever have to do is dust it with a dry cloth. A cloth dampened with a mild soapy
water solution can also be used. Do not immerse the unit in water.
If any of the cords become damaged or frayed they should be replaced immediately
to avoid damage to the equipment or any peripheral devices. Contact your nearest
dealer or Stop and Listen for replacements.
The units should be plugged-in to the power source even when not in use to maintain
the internal batteries in peak condition. To protect the internal memory backup
batteries for long term storage, ensure that they have been sufficiently charged by
leaving the units plugged in with the (Memory) Backup switches turned ON for 48
hours, then turn the (Memory) Backup switches OFF and unplug the units.
N.B. It is recommended that the 120 volt power outlet used for the equipment be
uninterruptable (unswitched) to avoid damage to the equipment due to 'power spikes’.
SPECIAL NOTE: OUTDOOR APPLICATIONS
This equipment has been designed for ruggedness and is suitable for operation in
almost any climate, from minus 30°F to plus 140°F. There are a few precautions
,however, which should be followed to prolong the service life of the units where they
are exposed to environmental extremes:
Where the equipment may be subject to extreme humidity or free standing water the
unit should be enclosed in a water tight and dust-proof enclosure. These can be found
(typically stocked) at an electrical supply store or ordered through Stop and Listen. All
connections to outside equipment should be through the bottom of the enclosure
through a “gland nut” packing or equivalent water-tight connector.
Equipment can be special ordered with a protective (conformal) coating for situations
where exposure to corrosive liquids or gasses is anticipated.
Where extreme cold temperatures are expected (colder than minus 30°F ) the
equipment enclosure should be suitably insulated. Where a battery is used in
conjunction with the units, such as in winter solar applications, consideration should
also be given to keeping the battery at suitable operating temperatures.
Where substantial vibration is anticipated the units should be shock-mounted using
appropriate fasteners and all associated wiring and connections should be well
secured.

Stop and Listen Multi-Message Recorder: Operating Instructions Page
8
SPECIFICATIONS: Multi-Message Recorder
The Multi-Message Recorder (MMR) is an 8 message Recordable Playback device and is designed for use with
the Digital Message Recorder II (DMR II). The specifications listed reflect this. The MMR can be ordered c/w the
DMR II, or as an upgrade to an existing DMR.
Digital Sampling Rate is internally selectable and effects Frequency Response and Max. Recording Time as
outlined. Max. Recording Time is per message. Higher frequency responses are preferable for music.
Max. Recording Time (per message, min:sec) 0:40 1:00 1:20 2:00
Frequency Response (@-30dB input) 50-15KHz 50-12KHz 50-6.8KHz 50-4.5KHz
Message Capability 8 Separate Messages, Individually Accessed, 1 at a time
Audio Input Line Level (200 mV p-p sensitivity), 10 K impedance
Audio Output - Line Level 200 mV p-p to 1V p-p adjustable, 10 K impedance
- Speaker Level 6 watts @ 4 ohms
Memory Type 80nS Fast Page Dynamic RAM
Digital Sampling Rate 70, 50, 37, 32 (Kbps,peak ADPCM)
Memory Backup 14 day capacity, 3.2A-hr storage cell, float charging
A/D Conversion Adaptive Delta Pulse Code Modulation, Flash Approximation
Indicators (3) VU (record/playback level), Volume Setting, Message Number (1-8)
Start Inputs(8) One per message, momentary contact closure, via DB25 connector
(included)
Lighting Outputs(8) One per message, active while playing, +5VDC, 20mA, via DB25 connector
Power Consumption 450 mA @ 12 VDC (typical, average)
Power Supply 12 VDC output nominal @ 1000 mA, 120 VAC source
Approvals CSA, UL, FCC CLASS A Tested and Approved
Construction Standard Industrial/Commercial, carbon steel enclosure
Operating Temp -20°F to +130°F (-30°C to +55°C)
Dimensions, Weight 6.5"w x10.0"d x1.5"h, 6.5 lbs (16.5w x 25.5d x 3.8h cm., 3 kg) (x 2 units)
FCC, CSA NOTIFICATION
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with these instructions, may cause harmful
interference to radio communications. Operation of this equipment in a residential area may cause harmful
interference in which case the user will be required to correct the interference at his own expense. Equipment
changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment. This equipment does not exceed Class A limits for radio noise emissions as
set out in Schedule V to VIII of the Radio Interference Regulations of Communications Canada.
WARRANTY
This Stop and Listen Inc. product is warranted against defects in workmanship and materials. If any failure
resulting from a defect in either workmanship or material shall occur under normal use within one year from the
original date of purchase, such failure shall be corrected free of charge to the original purchaser by repair or, at
Stop and Listen Inc.'s sole option, replacement of the defective part or parts. No charge shall be made for labor
or services performed during said one year period providing the product is delivered to an Authorized Service
Center in the original shipping carton. This warranty does not cover equipment which has been tampered with in
any way, or damage caused by accident, negligence, alteration, or misapplication. This product must be
returned transportation prepaid, properly packed and insured. This warranty applies only to the original
purchaser. NO OTHER WARRANTIES ARE EXPRESSED OR IMPLIED. STOP AND LISTEN INC. IS NOT
LIABLE FOR CONSEQUENTIAL DAMAGES.

Stop and Listen Multi-Message Recorder: Operating Instructions Page
9
TROUBLE SHOOTING GUIDE
Please take a few minutes to review the Operating Instructions and to check that all
connections have been made in accordance with the CONNECTIONS DIAGRAM. The most
common source of problems with electronic equipment is due to faults in the external wiring
and connections. It is rare that the electronic component itself will develop a fault.
Following the instructions in a step-by-step manner helps pinpoint the source of any
problems and helps to eliminate procedural problems. Once you are confident of the
connections and have reviewed the instructions, the following guidelines may prove helpful.
Effective trouble shooting is best done by using a process of elimination.
No Power, lights don't come on: make sure the unit has been plugged into a working power outlet (the outlet can
be checked with a lamp). Check the internal fuse and replace with a 1 Amp, Type 3AG if required
Erratic Operation- microprocessor fault - reset the microprocessor by disconnecting the power and turning the
BACKUP switch OFF for a minimum 10 seconds. Turn the BACKUP switch back on and plug the unit in, re-
record the audio track. Ensure the unit has been adequately charged by leaving it plugged in overnight with the
BACKUP switch turned ON.
Erratic Operation - EOS register null - ensure all unused tracks have been recorded with a 'blank' message as
per Section 2.8 Recording instructions
Doesn't Record, monitor feature doesn't work- check all connections, ensure that the source output is OK. Try
connecting the monitor speaker to a source that is known to be working.
Doesn't Record but monitor feature works - check with dealer to confirm that unit has been configured for use
with MMR
Can't Record Whole Message(s) - ensure the unit has been sufficiently charged with the BACKUP switch ON,
check configuration on PG1 to ensure dip switches have been set correctly.
Audio Crackles or Breaks Up during high volume sections of audio track- review instructions under recording,
reduce input signal level
Severe Distortion on Playback- try recording with no input signal (Line In disconnected). This will quickly
determine whether the problem is with the source material or with the equipment itself. If using a compact disc or
DAT tape player there may be digital 'beating through the output that interferes with the DMR. Try using a
conventional tape player.
Low Playback Volume - check to see that source has adequate drive for recording (see RECORDING section).
Check to see that external speakers are connected in parallel, not series.
Message is Frequently Lost - check that the BACKUP switch is in the ON position. Check to ensure that the unit
is plugged into continuous, unswitched power and has been plugged in long enough to recharge internal battery
(24 hrs)
If you still experience difficulties after going through the steps outlined above, give our
Technical Support Hotline a call TOLL FREE 1-800-387-2365. Please have a complete
description of the problem along with the model and serial numbers handy.

Stop and Listen Multi-Message Recorder: Operating Instructions Page
10
MULTI-MESSAGE RECORDER
SWITCH/LIGHTING WIRING HARNESS COLOUR CODING
FORM A, FORM B CABLE ASSEMBLIES
FORM A CABLE FORM B CABLE CONNECT TO FUNCTION DB25
COLOR/stripe COLOR/stripe PIN-OUT
BLACK BLACK LED/RELAY #5 LIGHTING OUTPUT #5 1
BLACK / white BROWN LED/RELAY #7 LIGHTING OUTPUT #7 2
BROWN BROWN / black LED/RELAY #4 LIGHTING OUTPUT #4 3
BROWN / whit
e
RED LED/RELAY #2 LIGHTING OUTPUT #2 4
RED RED / black LED's/RELAYS GROUND 5
RED / white DK ORANGE LED's/RELAYS GROUND 6
RED / black DK ORANGE /
b
SWITCHES +5 VOLT 7
ORANGE YELLOW SWITCHES +5 VOLT 8
ORANGE / whi
t
YELLOW / blac
k
SWITCH #8 SW8 9
ORANGE/ bla
c
DK GREEN SWITCH #6 SW6 10
YELLOW DK GREEN / bla
c
SWITCH #4 SW4 11
YELLOW / blac
k
AQUA SWITCH #2 SW2 12
LIGHT GREEN AQUA / black N/C EXTERNAL SYNC 13
DK GREEN DK BLUE LED/RELAY #6 LIGHTING OUTPUT #6 14
DK GREEN / w
h
DK BLUE / blac
k
LED/RELAY #8 LIGHTING OUTPUT #8 15
DK GREEN / bl
a
LT BLUE LED/RELAY #3 LIGHTING OUTPUT #3 16
BLUE LT BLUE / black LED/RELAY #1 LIGHTING OUTPUT #1 17
BLUE / white VIOLET LED's/RELAYS GROUND 18
VIOLET VIOLET / black LED's/RELAYS GROUND 19
VIOLET / white GREY SWITCHES +5 VOLT 20
GREY GREY / black SWITCHES +5 VOLT 21
GREY / black WHITE SWITCH #7 SW7 22
WHITE WHITE / black SWITCH #5 SW5 23
PINK LT PINK SWITCH #3 SW3 24
PINK/ black LT PINK / black SWITCH #1 SW1 25
SWITCHES must be momentary contact, normally open, tied to +5V common
LED/LIGHTING outputs can supply a maximum of 20 mA at 5 volts DC, tied to GND commo
n
Where LED's are used, they should be connected in series with a 220 ohm 1/2 watt resistor
LED's are polarity sensitive - reverse the connections if LED's fail to light
Wiring must be adequately supported and secured to prevent strain on connections
When using more than 4 external start switches the +5V lines should be pigtailed
When using more than 4 lighting outputs the GROUND lines should be pigtailed
Consult a qualified electrician or technician
STOP AND LISTEN INC
rev July 94

Stop and Listen Multi-Message Recorder: Operating Instructions Page
11