DE5817
1
DL-125C, DL-125CA
Programmable 2-Channel Speech Dialer
Installation Instructions
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
Pressing
STOP button
Manual or Automatic
Power Disconnection
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.
Dial
LED
Programming
button
Z1 input
activation button
“STOP” dialing
button
Z2 input
activation button
Numeric buttons
for programming
AUTOMATIC
2 - CHANNEL
SPEECH DIALER
DIAL
Model: DL-125c
B
C
D
E
F
A-F
A
PROG
STOP
AL-1
AL-2
PROGRAM
ALARM-1
ALARM-2
STOP
3
4
5
6
7
8
9
*
0
#
1
2
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.
