DL-125C, DL-125CA
Programmable 2-Channel Speech Dialer
1. INTRODUCTION
1.1 General description
The DL-125C and DL-125CA are automatic programmable
speech dialer designed for verbal reporting of events.
Features
• 2 alarm inputs (Z-1 & Z-2).
• When each input is triggered, a specific prerecorded verbal
message is reported to 4 remote telephones.
• When an event occurs, it can be reported to different 4
telephones or (if both inputs are connected in parallel) to
different 8 telephones.
• The target telephone numbers may be frequently
reprogrammed by the user.
• If the telephone line is disconnected, the two output terminals
LF (solid state switch) are shorted or open (programmable).
These terminals can be used to send a signal to the alarm
system for telephone line failure indication.
• The alarm logic of each input can be programmed by the
installer (activation when alarm input is "open" or "closed").
• Selectable Pulse or DTMF dialing method.
• Certain functions can be performed in response to DTMF
control commands received from remote telephones.
• Whenever a message is acknowledged by the called party, a
highly sensitive microphone is activated, to allow the called
party to listen and hear sounds in the installation site.
• The "listening-in" period is limited in time, but the called party
can send a specific DTMF command to prolong it.
• Programmed data is retained in an EEPROM, unaffected by
power failures.
• A communication session with the first / second group of
telephones is initiated by triggering alarm inputs Z-1 / Z-2, or by
pressing AL-1 / AL-2 on the front panel, respectively.
• Powered by an external source and can be backed up by a
rechargeable battery.
Dialer Types
Dialing Can be Stopped by:
Type
DL-125C YES (*) YES
DL-125CA NO (**) YES
* Provided that momentary alarm contacts are used.
** This feature is sometimes required by regulatory authorities.
1.2 Applications
• Upgrading alarm control panels that do not have a dialer. Two
different events can be reported to remote telephones.
• Stand-alone 2-input 24-hour alarm system, triggered directly by
a smoke/shock detectors or a panic button (loop response time
200 ms).
• Looking after infants or old, sick and disabled people. The
dialer delivers a distress message and then allows the called
party to "listen in".
• Supervising unattended technical devices or processes, with
verbal reporting of equipment failures or process anomalies.
• Transmitting numeric reports to numeric pagers or voice
messages to voice pagers.
Pressing
STOP button
Manual or Automatic
Power Disconnection
Installation Instructions
Numeric buttons
for programming
BCD
2
1
EF
456
789
A-F A
0#
*
Dial
LED
2 - CHANNEL
AUTOMATIC
SPEECH DIALER
DIAL
Model: DL-125c
Figure 1. Front Panel
1.3 Message Structure
The overall length of the speech message that can be recorded is
limited to 20 seconds (see par. 5,4) . Within this limit, the
message can be composed of two pre-recorded segments:
• The identification segment, common to both alarm inputs. This
segment usually identifies the user or the protected premises.
• The alarm type segment, associated with a specific alarm input.
This segment is used to describe the type of event reported
("fire", "intrusion", "panic", etc.).
A transmission initiated by a specific event (one of the two
alarms) is composed of the identification segment and one of
two alarm type segments. The order of transmission of the two
segments can be selected. For instance, you can select: "The
Smith residence, 25 Scarecrow Drive – Fire Alarm", or you can
select: "Fire Alarm – the Smith residence, 25 Scarecrow Drive".
1.4 Communication Routine
Note: In this section, location numbers identify "memory cells"
that retain programmed parameters (see Para. 5.8).
Once triggered into action, the dialer introduces a programmed
pre-dialing pause (see Location 14 in Para. 5.8). Then it
disconnects the local telephone set and engages the telephone
line. The DIAL LED lights and the process continues as follows:
A. The dialer starts dialing if uninterrupted tone is detected for 2
seconds (see C below). If 5 seconds elapse with no dial tone -
the dialer disengages the line, waits 5 seconds and tries
again. If another 5 seconds go by without dial tone, the dialing
procedure starts anyway (see B below).
B. The dialer checks whether a letter is programmed as a prefix
to the first telephone number. Letter prefixes impose an
additional delay before dialing (see Para. 5.2). The dialer
introduces the required delay (if any) and then starts dialing.
C. The dialer dials the programmed number. During dialing, the
LED either remains lighted (DTMF dialing) or flashes (pulse
dialing), depending on the dialing method selected. After
dialing, the dialer pauses for 5 seconds and transmits the
message prepared for the called party associated with the
input that had been triggered.
D. The dialer now waits 3 seconds for the called party to
acknowledge (the acknowledge signal is DTMF "1").
E. Upon receiving the acknowledge signal, the dialer removes
the presently contacted telephone from its task list for the
current event. If the "listen in" function is permitted (see
Location 10 in Para. 5.8) it will continue as in Paragraphs F
and G below. If not, the dialer will go "on hook" and proceed
to dial the next number.
PROGRAM
PROG
3
ALARM-1
AL-1
ALARM-2
AL-2
STOP
STOP
Programming
button
Z1 input
activation button
Z2 input
activation button
“STOP” dialing
button
DE5817 1
Note: Without an acknowledgement, the message will be
repeated until the maximum number of message repeats is
reached (see Location 20 in Para. 5.8). The dialer will call the
remaining numbers and will then repeatedly retry the number
that didn't acknowledge, until the maximum number of dialing
attempts is reached (see Locations 12 and 13).
F. After acknowledgement, the dialer enables the "listen in"
function for a preprogrammed period.
G. At the end of the listen-in period, a short beep sounds. If the
called party keys "1" within 10 seconds, a new listen-in period
begins. Otherwise", the dialer will go "on hook". The listen-in
period may be prolonged as many times as necessary or
terminated at any time by keying "9" twice in succession.
H. Upon conclusion of the communication session with the first
telephone, the procedure in A through G above will be
2. SPECIFICATIONS
Input Circuits: Two N.O. or N.C. inputs (programmable)
LF Alarm Output Type: Solid-state relay, N.O. or N.C
(programmable), up to 100 mA / 30 V, ~30 Ω internal resistance.
(note: this output is comprised of two terminals that have no polarity)
Alarm Logic: Alarm upon circuit closure or upon circuit opening
(programmable)
Dialing Method: Pulse or DTMF (programmable)
Tel. Line Impedance: 600Ω, or customized to meet local
requirements in country of use.
Reporting Destinations: Two groups of telephone numbers, 4
telephones in each group. Reporting to one pager requires the
memory space dedicated to two telephone numbers.
3. MOUNTING
The dialer may be installed as a stand-alone unit or within the
housing of a host system such as an alarm control panel.
Removing the Front Panel
2
Pull upward the bottom
frame to free the two tabs
and remove the frame
1
Press slightly
to disengage
Separating the Module from the Base
repeated for all remaining telephone numbers in the relevant
group (provided that the "non-backup mode" has been
selected in Location 24).
Note: Location 24 allows selection of "backup" or "non-
backup" mode. In the backup mode, acknowledgement from
one telephone is enough to close the event. In the "nonbackup" mode, acknowledgement must be obtained from all
telephones in the group.
I. Once the entire communication cycle is concluded, the dialer
disengages the line and reverts to the standby state. If you
are using the DL-125C, the communication routine may be
aborted at any time by pressing the STOP button on the
keypad (provided that the input is no longer in alarm). If you
are using the DL-125CA, the only way to stop the dialer is to
disconnect the power, because the STOP button is disabled.
Tel No. Length: 20 digits maximum.
Speech Message Duration: 20 seconds max.
No. of Dialing Attempts: 1 – 15 (programmable)
No. of Message Repeats: 1 – 255 (programmable)
Acknowledge Pause between Message Repeats: 3 seconds
Power Supply: 11-28 VDC
Maximum Current Drain: 20 mA (standby), 105 mA (operation)
Operating Temperatures: 0°C to 50°C (32°F to 122°F)
Size: 150 x 105 x 35 mm (5-7/8 x 4-1/8 x 1-3/8 in.)
Weight: 235 g (8.3 oz)
Standards: Compatible with RTTE requirements - Directive 1999/5/EC
of the European Parliament and of the Council of 9 March 1999.
EN50131 Grade 2 Class II.
Securing the Base to a Wall or Host System Cabinet
BASE
4
Open one of
the wiring
nockout and
perform wiring
(see section 3)
MODULE
CATCH
SEATS FOR FRAME TABS
WIRING
KNOCK-
OUTS
SLOT FOR FRAME CATCH
SEATS FOR MODULE LEGS
MOUNTING
HOLE
(1 OF 3)
5
Insert screws
via mounting
holes and fasten
the base to
mounting surface
Remounting the Module
3
Swing up and
separate the module
from the base
MODULE
CATCH
MODULE
RIGHT-HAND
LEGS (HIDDEN)
Figure 2. Mounting
BASE
Remount the module
6
and the front panel
(see step 1)
MODULE
CATCH
RIGHT-HAND
LEGS (HIDDEN)
4. Wiring
The dialer can be powered by constant power supply or by a
switched power supply. When the dialer receives switched power
from an alarm system, it will be disabled upon stopping the alarm,
since the alarm relay cuts off the power. This type of wiring is
ideal when the dialer is mounted in a locked box that prevents
access to the STOP pushbutton.
Note: Both Z-1 and Z-2 inputs can be programmed as N.O.
(normally open) or N.C. (normally closed) inputs (see Locations
22 & 23 in Para. 5.8). With N.O. inputs selected, a short circuit
across the relevant input will activate the dialer.
2 DE5817
With N.C. inputs selected, an open circuit across the relevant
input will activate the dialer.
Use 15 AWG or larger conductor to connect the EARTH terminal
to the nearest electrical ground, preferably a ground rod.
Failure to earth the unit compromises safety!
The phone connected to the SET terminals will be automatically
disconnected from the line whenever the dialer goes into action.