DMC4
USER GUIDE
For Technical Assistance
Please Phone: (07) 5596 5128
Page 2 National Communications
PRODUCT DESCRIPTION
DMC4 is a High Quality MP3 based Digital Message Player designed
specifically for Message On Hold applications.
The heart of unit is a professional quality MP3 engine, which is controlled
by a powerful microprocessor in order to provide exceptional message
output quality .
DMC4 is designed to play MP3 files contained on an MMC or SD Flash
Card, from the moment it is inserted. It will START PLAYING your
Message as soon as POWER is connected to it or an SD Flash Card
with an MP3 file is inserted.
When it reaches the end of the MP3 based message, it will immediately
REST AR T at the beginning of the file, or if there are OTHER MP3 files
loaded onto the card, it will START playing the NEXT MESSAGE,
followed sequentially by all other messages loaded onto the card. It will
continue with this cycle until POWER is removed or the SD Flash Card
is removed.
DMC4 is designed to be left ON at all times. Power consumption is
minimal (approx $6 per year) and there are no moving parts that will
wear with use.
DMC4 is supplied with a TWO YEAR FACT OR Y W ARRANTY.
MESSAGE CHANGE SWITCH OPTION
DMC4 can be fitted with an OPTIONAL Message Change
Switch, which will allow the user to change the message,
saved on the SD Flash card, which DMC4 will play.
Multiple Messages (up to 250) can be loaded onto the
SD Flash Card used with DMC4
On Power Up, only Message 1 will play . Message 2 can be selected by a
single switch press. A further press of the switch will select the next Message
to play , or if there are no other messages, Message 1 will again play.
Message Change Switch
SD Flash Card
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DMC4 can operate with ALL MultiMedia (MMC) or Secure Digital (SD)
Flash Cards, up to 16GB in capacity.
These flash cards are completely non volatile, which means that your
message is not lost in transport or when power is lost.
The Flash Card can be overwritten many times, without any deterioration
in quality.
Our loading design allows the Flash card to be changed in seconds and
you do not even need to power the device down before doing this.
DMC4 is supplied with a 2GB SD Flash card, which provides for up to
2000 minutes of message at CD quality (128kbps).
Page 4 National Communications
MANUAL MESSAGE UPDATE
(via Flash Card)
DMC4 is fitted with a ‘Hot Swappable’ Flash card socket, which provides
for quick and easy Flash Card replacement.
This means that a new message can be prepared for you by a
Professional Message Production company and mailed to you at any
time.
A list of recommended Message Production companies can be provided
on request.
Replacing your message is simply a matter of removing the old Flash
Card with your fingers and replacing it with the new Flash Card.
There is no need to disconnect the power.
Y our old Flash Card can then be mailed back to your Message Production
Company , in the transport case provided.
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MESSAGE UPDATE
(via Email to Flash Card)
Due to the wide use of Flash Cards with Digital Cameras, Printers and
other devices, many users will now be familiar with receiving files by
email and then saving files to a Flash Card.
This makes for a very quick and efficient means of sending Message
Updates to DMC4 users.
MP3 message updates are sent as an attachment to a normal email
and then saved to the SD Flash Card. The original message should be
deleted.
In order to utilise this method, customers will need to have an SD Flash
card drive on their PC or Laptop. If a suitable built in drive is not available,
the customer can use an inexpensive external MMC/SD programmer
that is simply plugged into any USB port.
An inexpensive good quality external
USB - SD Flash Card programmer
is available from National Communications.
PROCEDURE
1) Remove the SD Flash Card from your DMC1 device and insert it
into the USB programmer.
2) You should locate the Flash Card drive using Windows Explorer
and then DELETE the original MP3 file.
3) You should right click the attachment and SAVE this file to the
USB programmer.
4) Insert your refreshed SD card into your DMC device. The new
message will start playing a short time later.
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INSTALLATION
Where an existing RADIO, CD or TAPE player
is being replaced with a DMC FLASH
Existing on Hold users can install this unit themselves by simply plugging
DMC in place of the existing Audio source.
Where a Radio or Message On Hold facility has not been used
previously , technical installation will be required (see page 7).
The contact details of a suitable Installation Technician in your area
can be provided.
Where an existing RADIO, CD or TAPE player
is being replaced with DMC4
1. Unplug POWER to the existing audio device.
2. DISCONNECT the AUDIO OUTPUT cord from the existing audio
device. This cord connects from the AUX or HEADPHONE outlet
from your existing device through to a Line Isolation Transformer
(LIU) which is connected to your telephone system.
3. CONNECT this AUDIO OUTPUT cord to the AUDIO OUTPUT port
of your DMC device. This cord connects to a Line Isolation
Transformer (LIU) which is connected to your telephone system.
4. CONNECT the supplied POWER ADAPTOR to your DMC
Device, andswitch your power ON.
5. Call your telephone line and have someone place your call ON
HOLD.
Adjust the OUTPUT VOLUME from your DMC device, using the
VOLUME ADJUST knob located on the bottom of your unit, until
the ON HOLD volume is set to your desired level.
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INSTALLATION cont.
New Installation where an On Hold facility
has not been used previously
Your DMC4 device must be connected to your Telephone System through
a suitable AUSTEL/ACMA approved LINE ISOLATION UNIT (LIU).
An inexpensive and High Quality LIU is available from National
Communications.
Use of an LIU is an AUSTEL/ACMA safety requirement.
If your Telephone System is fitted with a suitable MUSIC or MESSAGE
interface, then you should connect the Male Telephone Plug of your LIU
to this interface and connect the Audio Plug of your LIU to the Audio
Output port of your DMC device.
Then :
1. CONNECT the supplied POWER ADAPTOR to your DMC device,
and switch your power ON.
2. Call your telephone line and have someone place your call ON
HOLD.
Adjust the VOLUME of your ON HOLD Message to suit, by using
the VOLUME ADJUST knob located on the underside of DMC4.
Please Note : Your Telephone System may need to be programmed to
advise it that a MESSAGE on HOLD facility has been fitted to it.
If your Telephone System is NOT fitted with a suitable MUSIC or
MESSAGE interface, then you should contact a Telephone Technician
for assistance.
The contact details of a suitable technician are available by contacting
National Communications (07) 55965128.
Page 8 National Communications
SPECIFICATIONS
Dimensions (all in mm) : 106 (W) x 106 (D) x 43 (H)
Weight : 200g
Power Supply : 240V AC to 9V AC/500mA
Flash Card : MMC, SD or SD-HC
Audio Input : MP3 files 32-256 kbps
Audio Output : DMC - 1W @ 8 ohms
: Mono only
ACMA Supplier Number : N 782
WARRANTY
This device is guaranteed against defects from workmanship for a period
of two years (24 months) from the date of purchase.
In the event of failure, you should return the product, along with proof of
purchase date, and a written statement about the nature of the problem.
The obligation is solely to repair or replace the product. The warrantor
is not liable for any incidental or consequential damages due to such
defects.
This Warranty shall not apply to any unit which has been subject to
alteration, modification, abuse, negligence, accident, external voltage/
lightning surge or used in any manner contrary to these instructions.
The user is responsible for freight costs to the repair point. The warrantor
will be responsible for freight costs in returning this unit back to the
user.
Damage caused to this device or attached equipment, by lightning strikes
or over voltage surge is not covered under this warranty .
CASE SEALED AT FACTORY
OPENING THE CASE VOIDS THE WARRANTY
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