DE6102
1
SP
SP
SP
SP-2
-2
-2
-2
Speech Processor Module
Installation Instructions
1
11
1. INTRODUCTION
. INTRODUCTION
. INTRODUCTION
. INTRODUCTION
The SP-2 speech processor is an advanced electronic
record/playback module for short voice messages, up to 20
seconds long. It is designed for manual recording and
electronically triggered playback. When the SP-2 is used in
conjunction with alarm control panels and digital communicators,
calls for help due to fire or burglary may be prerecorded, for
automatic transmission by telephone or by radio (or both),
depending on system configuration. The SP-2 may also be used
as an inexpensive, easy-to-install announcer device, triggered by
motion detectors or by any type of momentary switch.
A miniature microphone and an easily accessible RECORD
pushbutton are included in the SP-2 (as in a common answering
machine). Two audio outputs are provided: 600-ohm line
terminals and an 8-ohm loudspeaker output.
When triggered by a short pulse, the SP-2 plays the recorded
message once and then stops. With continuous triggering, the
message is repeated over and over again, until the trigger voltage
is removed from the START input. An audio input header permits
the installer to choose between recording a message with the
internal microphone (INT) and recording a message from an
external audio source (EXT).
Since the SP-2 complements existing alarm and public
addressing systems, it can be installed within the alarm system's
control panel or inside the loudspeaker housing. Operating power
Figure 1.
SP-2 module
is drawn from the host system or from any external 12VDC
supply. Detailed information on various applications is given in
the SP-2 Application Notes, available upon request from Visonic
Ltd. authorized dealers.
2
22
2. SPECIFICATIONS
. SPECIFICATIONS
. SPECIFICATIONS
. SPECIFICATIONS
Maximum Recording Duration:
20 seconds.
Memory Type:
EEPROM (no need for battery backup).
Triggering Methods:
Positive voltage applied to the
ST+
terminal.
Negative (ground) potential applied to the
ST-
terminal.
A short circuit imposed across the
ST
pins on the PCB.
Loudspeaker Output:
1.5V p-p/8
Ω
(across the
SIG
and
SP-
terminals).
Line Output:
1.5V p-p/600
Ω
(across the
SIG
and
GND-
terminals).
External Audio Input Level:
100 mV p-p maximum
External Audio Input Impedance:
4 k
Ω
Nominal Supply Voltage:
12 VDC ±15%
Current Consumption (approx.) :
5 mA (quiescent), 20 mA
(record/playback into 600
Ω
line)
100 mA peak (playback into loudspeaker).
Dimensions:
38 x 58 x 15 mm (1.5 x 2.3 x 0.6 in.)
Weight:
18.5 g (0.65 oz)
3
33
3. INSTALLATION
. INSTALLATION
. INSTALLATION
. INSTALLATION
The holes at the 4 corners of the SP-2 printed circuit board serve
for mechanical installation. Remember to leave adequate
clearance between the foil side of the PCB and any metal
surface. For electrical connections, refer to the drawings and
proceed as follows:
1.
Apply a continuous 12VDC supply to the
12V+
and the
GND-
terminals, observing correct polarity.
2.
Connect the playback trigger terminal of the communicator or
control panel to any one of the SP-2 start (ST) inputs. This
connection must be made in accordance with the type of
playback trigger provided by the communicator or the control
panel:
•
If the playback trigger is positive, apply it to the voice
processor
ST+
terminal.
•
If the playback trigger is ground potential, apply it to the
speech processor
ST-
terminal.
•
If the playback trigger is obtained by closure of normally
open "floating" relay contacts, connect these contacts
across the two
ST
pins located near the REC button.
Alternatively, these floating relay contacts may be used
for supplying either positive trigger voltage to the
ST+
terminal or ground potential to the
ST-
terminal.
•
If you wish to trigger the SP-2 with a normally closed
switch of a PIR motion detector, connect the N.C. switch
contacts across the speech processor's
ST+
and
12V(-)
terminals. Then use the jumper provided with the unit to
short the two ST pins permanently together (these pins
are located near the REC button).
3.
Connect the SP-2
SIG
terminal to the
AUDIO INPUT
terminal
of the control panel or digital communicator.
4.
To check the recorded message, connect an 8-ohm
loudspeaker across the
SIG
and
SP-
terminals of the speech
processor.
IMPORTANT NOTICE:
Instructions for connecting the SP-2
Speech Processor module to particular Visonic Ltd.
communicators, control panels and long-range radio
transmitters are provided in the SP-2 Application Notes
(Publication D-6102-9). The application notes also include
useful information on triggering methods with N.C. and N.O.
sensor contacts, as required in automatic announcer
applications.
