Visonic SP-5A Installation Instructions Manual

DE6113 1

SP

SPSP

SP----5A

5A5A

5A

Multi-Channel Speech Processor

Installation Instructions

1. INTRODUCTION

1. INTRODUCTION1. INTRODUCTION

1. INTRODUCTION

1.1 Description and Capabilities

The SP-5A is an advanced 4-channel record/playback device for
short voice messages. A different message can be recorded on
each of the 4 "channels", and each channel can be played back
separately by triggering the corresponding input. A unique design
feature allows the number of messages at one site to be
increased virtually without limit by cascading any number of SP­5A units (Para. 1.6).

The total available recording time for all 4 messages is 90
seconds. For maximum efficiency, each outgoing message can
be composed of a short "individual" message (alarm, fire, etc.)
and a longer "common" message (location, address or alert
signal). The common message can be joined to the beginning or
the end of each individual message, as desired. Upon triggering
one of the 4 channel inputs, the relevant individual message and
the common message are played back in succession, in the
order chosen (Para. 1.3B), and in accordance with the selected
playback mode (Para. 1.3C).

The SP-5A provides 1-Watt audio output that can be applied to a
loudspeaker, or to the Visonic Ltd. 10 W power amplifier AMP-10,
or to a dialer that has special speech processor input. The unit may
be used for verbal reporting of burglar or fire alarms and for making
access control systems and vending machines "speak out". It may
also provide automatic playback of warnings, announcements,
guidance and advertisements in elevators, stairwells, corridors,
exhibitions, museums, etc.

Playback from each channel can be triggered by motion detectors
or any type of momentary or on/off switch. The channel inputs
can function with normally open or normally closed switches
(Para. 1.4A).

A microphone, RECORD pushbutton, volume control potentio­meter and LED status indicator are included on board (Fig. 1). An
audio source selector permits the installer to choose between
recording speech directly with the internal microphone or using a
pre-recorded message from an external audio source such as a
tape recorder. The SP-5A recognizes priority levels and will
therefore interrupt a lower priority message in favor of a higher
priority message (Para. 1.4B).

The SP-5A is suitable for mounting within a host system cabinet
or inside a loudspeaker housing. Two units may be mounted in
an optional plastic cabinet - model UPB-3. Operating power is
drawn from the host system or from an external 12VDC supply.

1.2 Message Structure

The SP-5A can store four separate individual voice messages
plus a common message linked to all 4 channels. The overall
recording time must not exceed 20 seconds (or 90 seconds as an
option). The common message may be used to indicate the
location of the particular SP-5A or to identify its user or to play an
alert signal. The 4 individual messages provide information
associated with the specific channel inputs.

Suppose the SP-5A is installed in an imaginary warehouse
known as Acme Storage and wired to report verbally via an
automatic dialer. Four distinct alarm messages could be recorded
for transmission and linked to a common message, as
demonstrated in the following example:

Chan. Combined Message (common + individual)
1 Acme Storage, fire alarm

2 Acme Storage, intrusion alarm
3 Acme Storage, flooding alarm
4 Acme Storage, power failure

In this example, the common message is "Acme Storage". The
individual messages relate to the type of alarm associated with
particular channel input.

Memory space (recording time) can be divided freely between the
four individual messages and the common message, provided
that the total accumulated recording time of all 5 messages will
not exceed the 20-second time limit. Omitting a certain channel
message or the common message will leave more memory space
for the rest of the messages.

SP–5A

N.C. N.O.

MIN

MAX

+
–

GNDCH1CH2CH3CH4DISACTBSYGNDSP K12 V

1

2

34

ON

1

2

34

ON

+

–

MICRO­PHONE

RECORDING
SOURCE JU MPER

VOLUME

CONTROL

RECORD

BUTTON

FUNCTION

CONTROL

SELECTOR

AUDIO

CHANNEL

SELECTOR

INPUT

POLARITY

JUMPER

STATUS

LED

Figure 1. PC Board Layout

1.3. Selectable Functions

Figure 2 presents the Function Control 4-lever DIP switch. The
tasks of all four switches are explained in the following sub­paragraphs.

A. Play/Record (SW1)

The PLAY/REC switch (marked 1) enables
you to determine the standby state of the SP5.

ON: The unit will stand by for recording (see
Section 4 for recording procedure).

OFF: the unit will stand by for playback.
Playback will start if channel input is triggered,
or a channel DIP switch is set to ON.

B. Playback Order

The COM MSG switch (marked 2) determines
which

part will be played back first: the indivi-

Figure 2.

Function

Control Switch

dual channel message or the common message.
ON: The common message will be played back first, and then the

individual channel message.
OFF: The individual channel message will be played back first,

and then the common message.
C. Playback Mode (SW3, SW4)
The PLAY MODE / MEMORY ERASE selectors (levers 3 and 4

of the Function Control switch) can be set to four different
combinations as follows:

3 4 Resultant Mode
ON ON Erase mode - all recordings are erased (if REC

button is pressed 3 times*).

OFF OFF Single playback (non repeating) in response to

momentary or continuous triggering of any input.

ON OFF Repeated playback with timeout after 3 minutes,

in response to momentary or continuous
triggering of any input.

OFF ON Repeated playback for as long as the channel

input is kept triggered, but subject to the 3­minute timeout.

*

The button must be pressed for at least 1/2 second each time -

all within 4 seconds.

2 DE6113

1.4 Input Channel Characteristics

A. Input Polarity Definition

All 4 channel inputs, CH1 through CH4, can be programmed to
function as Normally Closed (N.C.) or Normally Open (N.O.), by
changing the position of the on-board input polarity jumper (see
Figure 1).

B. Channel Priorities

Each channel has a priority level commensurate with its number.
This means that channel 1 has the highest priority and channel 4
has the lowest priority.

For example, if CH2 is triggered while Channel 1 is engaged in
playback, Channel 2 will have to wait until Channel 1 times out.
Conversely, if Channel 1 is triggered while Channel 2 is engaged
in playback, Channel 2 will become disabled on the first pause
between message repetitions, and Channel 1 will take over (will
start its own playback).

1.5 The Channel Selector

The CHANNELS selector allows you to select the channel into
which you are going to record a message. It also allows you to
initiate a test playback from each channel (see Para. 4.3). The
various settings possible with the four switch levers are:

"1" ON and the rest OFF - Channel 1 is selected
"2" ON and the rest OFF - Channel 2 is selected
"3" ON and the rest OFF - Channel 3 is selected
"4" ON and the rest OFF - Channel 4 is selected
"1", "2", "3" and "4" ON - All four channels are selected for

recording the common message.

1.6 The Control Terminals

In applications requiring more than four audio channels, several
SP-5A units may be installed to operate harmoniously into the
same loudspeaker or into the same communicator device. This is
possible by virtue of 3 special control terminals that play a very
important role in multi-unit configurations (Fig. 3). The control
terminals are:

DIS - DISABLE input. If pulled LOW (grounded) by an external
circuit, this terminal disables the SP-5A.

ACT - ACTIVE output. This terminal, which is normally HIGH, is
pulled LOW by internal circuitry in the following cases:

– While the SP-5A is engaged in playback.
– While the SP-5A is disabled via its DIS input.
– While the SP-5A stands by because the BUSY line indicates

that the audio amplifier is currently engaged in amplifying speech
played back by another SP-5A unit.

BSY - BUSY Input/Output terminal. While an SP-5A is engaged
in playback, its BSY terminal is pulled to ground by internal
circuitry, to indicate that a message is being played back into the
speaker. The other SP-5A units sense this indication via their
own BSY terminals (Fig. 3).

1ST SP-5A UNIT

(PLAYS BACK)

2ND SP-5A UNIT

(DISABLED)

3RD SP-5A UNIT

(DISABLED)

SPK

DIS ACT BSY DIS ACT BSY DIS ACT BSY

SPK SPK

AUDIO OUTPUT CIRCUIT

"BUSY" LINE

"DISABLE"

"DISABLE"

GND

GND

GND

Figure 3. Multi-Unit Configuration

In the example of Figure 3, the first SP-5A unit has higher priority
than other units, because it can not be disabled (its DIS input is
not connected). When it starts playing back, its ACT output goes
LOW and disables the second unit, which in turn disables the
third unit and so on. Suppose the 2nd unit is triggered into
playback before the 1st unit. In the course of this playback, the
first unit can also be triggered into playback. The BUSY line
informs the first unit that the system is busy. However, when the
2nd unit pauses between message repetitions, the first unit
senses the momentary release of the BUSY line and starts
playing back. Simultaneously, the first unit's ACT output disables
all other units to prevent them from taking over at the first pause.

2. SPECIFICATIONS

2. SPECIFICATIONS2. SPECIFICATIONS

2. SPECIFICATIONS

Maximum Recording Duration: 90 sec
Memory Type: EEPROM (no need for battery backup)
Number of Audio Channels: 4
Channel Input Types: N.O. or N.C., jumper selected
Control Terminals:

BSY - Normally HIGH Input/output. Goes LOW while the SP-5A

plays back a message. Prevents playback if pulled LOW externally.
IS - Normally HIGH input. Disables the SP-5A if pulled LOW

(disable takes effect only when pausing between message
repetitions).

ACT - Normally HIGH output. Goes LOW during playback, or
when the DIS input is LOW, or while the SP-5A waits for release
of the BSY line.

Interval between Message Repetitions: 2 seconds
Loudspeaker Output: 1W across 8Ω (attenuated to 1 V p-p

max. if the VOL control is set to MIN.)

External Audio Input: 100 mV p-p max./ 4 kΩ
Supply Voltage: 12 VDC ± 15%
Current Consumption: 10 mA (standby), 30 mA (record), 300 mA

peak (playback into loudspeaker).

Operating Temp.: 0°C to 50°C (32°F to 122°F)
Size: SP-5A: 70 x 74 x 16.5 mm (2-3/4 x 2-7/8 x 5/8")
UPB-3 (optional): 165 x 108 x 38 mm (6-1/2 x 4-1/4 x 1-1/2 ")
Weight: SP-5A: 48 g. (1.7 oz),
UPB-3 (optional): 154 g. (5.4 oz)

3. INSTALLATION

3. INSTALLATION3. INSTALLATION

3. INSTALLATION

The SP-5A is supplied as a module without a case, for installation
within a host system cabinet. It may be also installed in an
optional UPB-3 plastic housing that can accommodate two side­by-side SP-5A units or a single unit, as desired (Para.3.2)

3.1 Mounting an Unpacked SP-5A

Mounting the SP-5A module within a host system cabinet is
simple, by using the mounting holes at the 4 corners of its printed
circuit board (Fig. 4).

Be sure to leave at least 6 mm clearance between the bottom of
the PCB and any metallic chassis. This is easily achieved by
inserting plastic standoffs over the mounting screws, to serve as
spacers between the printed circuit board and the chassis.

3.2. Mounting in the UPB-3 Cabinet

If your wish to use a UPB-3
cabinet for mounting two SP-5A
modules, refer to Figures 5, 6
and 7 and proceed as follows:

Remove the screw that

secures the UPB-3 cover to
the base.

Insert a small screwdriver

blade into the slot near one
of the snap-in tabs, as
shown. Carefully flex the

GNDCH1CH2CH3CH4DISACTBSYGNDSPK12 V

+

–

SP-5A

Ø 3.2 m

(1/8")

66.5 m m
(2-5/8")

62.6 mm

(2-15/32")

Figure 4. Mounting Hole Plan