Skutch Electronics DL-4 User Manual

"Telecommunication Products to solve Telecommunication Problems"

DL-4

4 Line Telephone Digital

Announcement System

11/12/08

Introduction

Thank you for purchasing the Skutch
DL-4 four line Announcement System.
This unit was designed for heavy duty
applications, such as movie theaters,
that requires a pre-recorded
announcement to be played to a high
volume of incoming callers. Each caller
always hears the announcement from the
beginning, no matter how many lines are currently in use.

The DL-4 is a totally digital system. This means that there are no moving parts during
the play back process which makes this unit much more reliable then tape based systems.
Best of all the audio quality will not degrade with usage or time. The DL-4 stores the
audio data on a user replaceable manufacture specific SD memory card. Each SD card
can only hold one pre-recorded announcement. This card can easily be replaced or
swapped with another by the end user. This gives the end user the ability to have many
different pre-recorded announcements available to switch out at any time. This is an
awesome feature. The DL-4 can use SD cards from 128MB to 2GB in size. Not all SD
Cards are compatible with the DL-4. You should only use one of the recommended
brands as stated in the SD Card section of this manual.
A 2GB SD card, the maximum size that can be used, will record annoucements up to
17 Hours, 28.5 minutes in length.

The DL-4 uses a standard WAV file format that is compatible with Windows based
computers. This makes it possible for the end user to produce and/or store audio files
directly on their computer. The DL-4 uses a sampling rate of 16K per second, at 16 bits,
uncompressed, Mono. This provides an audio quality twice as good as most
telecommunication devices which only use a sampling rate of 8K per second.

The DL-4 is easy to use and is the perfect choice for high volume, announcement only
applications.

Page 1 of 7

MIC Jack

SD Card

Modular Cords

Power
Adapter

Installation

1- The DL-4 supports both single line per modular cord (RJ-11), or two lines per modular
cord (RJ-14) telephone jacks. There are 4 modular jacks on the rear of the DL-4.
Connect the modular cords from the wall jack to the proper jack rear of the DL-4

2- Connect the Power Adapter to the DL-4, then to a 115vac Power Outlet.

3- Connect the Microphone to the microphone jack on the back of the DL-4. The
microphone can be left connected to the DL-4 if desired.

SD Card

Power Input

4 3 2 1
Telephone Lines

Page 2 of 7

IDLE MODE

When the DL-4 is first powered up, it will come up in the IDLE MODE. This mode is
basically the OFF state for the unit. While in the IDLE mode, the DL-4 will not answer
any incoming calls. You MUST be in the IDLE state to initiate an announcement record
or test sequence. You must also be in the IDLE mode to RESET the six digit call counter.

Version Number

The number directly to the right of the word "IDLE" represents the version of the
firmware in the DL-4.

Resetting the Call Counter

This function can ONLY be done while in the IDLE mode. Press down the "Hold Down
to Reset Counter" button until the display reads CALL COUNTER RESET.

Announcement Record

Once the Announcement Record mode is entered, the current announcement is erased. In
order to get the best sounding audio quality from the DL-4 we decided NOT to put an
automatic volume control on the microphone circuit of the DL-4. Simply put, automatic
volume control circuits reduce the overall quality of audio recordings. This means that it
is up to the end user to control their volume while recording. If you talk too loud, and/or
too close to the microphone, you will get distortion. If you talk too low, and/or too far
away from the microphone, the audio could sound too low. Consistency while recording
is very important. I suggest that you practice recording a few times to find the best
distance and speech volume while recording. For best results, try to speak into the
microphone at a consistent volume and distance.

1. Make sure that you are in the IDLE MODE.

2. Connect the microphone to the jack on the rear o panel of the DL-4.

3. Make sure that the MIC SWITCH is ON, and the LOCK switch on the SD Card is in
the UNLOCK position.

4. Press both the PAUSE and END buttons down, at the same time, until you hear the
BEEP. When the BEEP stops, immediately start dictating your new announcement.

5. When you have finished your announcement, immediately press the END button. The
unit will take a moment to store the newly recorded announcement then will
automatically play it back over the internal speaker, then will return to the IDLE MODE.

Pausing during Record

If you need to PAUSE during a recording, simply press the PAUSE button. The display
will show the word PAUSE as confirmation. To start recording again, where you left off,
simply press the PAUSE button again and the unit will BEEP. As soon as the BEEP ends,
immediately start dictating.

Page 3 of 7