5
E. Audio Connections
How the
SLP-4
audio connections are wired, is dependent on the system it is being installed into. Shown below are
two possible examples.
1. Wiring to a Multi-Zone Whole House Audio System
Typical of multi-zone whole house audio sys-
tems, a single RCA audio jack is used for its page
input. Most multi-zone controllers/amplifiers
require a 12 Volt DC trigger signal (or relay con-
tact closure), to automatically switch the source
to the “page” input. The
SLP-4
will provide a
switched 12VDC signal (or dry relay contact clo-
sure), which is maintained while the unit is paging
or for the duration of the door chime recording. It
is crucial that correct polarity for the 12 volt DC
trigger be observed. If the 12 Volt DC trigger is
wired reverse polarity, it will not function properly,
and the multi-zone audio system will instead trig-
ger on audio detection. When this is the case, the
first part of the page or door chime recording is
not heard.
©
MODEL SLP-4
VIKING
ELECTRONICS
HUDSON, WI 54016
SINGLE LINE PAGING CONTROLLER
WITH FOUR RECORDABLE
TRIGGERED AUDIO CHIMES / MESSAGES
POWER
13.8 VAC
USB
LED
POWER MUTE AUDIO PAGE
PAGE TRIGGER
OUTPUT
WET
12VDC
DRY
N.C.
COM
N.O.
WAVE
FILE
INPUT
TRIGGERED AUDIO
CHIME/MESSAGE SELECTIONS
PER TRIGGER INPUT
DOORBELL MODE
ON HOLD ALARM
DIAL "9"
MUSIC ON
HOLD INPUT
TRIGGERED AUDIO
PLAYBACK VOLUME
PAGE
VOLUME
LOUD RINGING
VOLUME
2 WATT
AMP GAIN
+
1
2
3
4
VIKING
CO LINE
INPUT
GND
OUT TO
PHONES
USB
USB
TRIG 1
TRIG 2
TRIG 3
TRIG 4
MSG
MSG
MSG
MSG
POWER
PAGE
MUTE
AUDIO
PAGE
LOUD
RING
+ -
IO COM
+ SPK -
OUTPUT
13.8V AC
Adapter
(included)
120V AC
Page Input
Multi-Zone Audio System
12V DC Page Trigger
(Control) Input
+
-
Warning:
Multi-zone controllers without a page trigger input
(audio sensing only) are not recommended, as the 1st word
during paging is usually omitted.
2. Wiring to a Stereo Receiver Audio System
The
SLP-4
has two audio inputs (L & R) and
two audio outputs (L & R) available on RCA
jacks. When the
SLP-4
is in its idle state, the
audio is simply looped thru the unit. Because
of this, the
SLP-4
can be inserted between
an audio system’s pre-amp and power ampli-
fier, or wired into a Tape Monitor loop of a
stereo receiver (as shown). The Tape
Monitor loop on the stereo receiver must be
turned on. Background music coming into
the
SLP-4
’s audio input jacks will be muted
during page and doorbell chimes.
©
MODEL SLP-4
VIKING
ELECTRONICS
HUDSON, WI 54016
SINGLE LINE PAGING CONTROLLER
WITH FOUR RECORDABLE
TRIGGERED AUDIO CHIMES / MESSAGES
POWER
13.8 VAC
USB
LED
POWER MUTE AUDIO PAGE
PAGE TRIGGER
OUTPUT
WET
12VDC
DRY
N.C.
COM
N.O.
WAVE
FILE
INPUT
TRIGGERED AUDIO
CHIME/MESSAGE SELECTIONS
PER TRIGGER INPUT
DOORBELL MODE
ON HOLD ALARM
DIAL "9"
MUSIC ON
HOLD INPUT
TRIGGERED AUDIO
PLAYBACK VOLUME
PAGE
VOLUME
LOUD RINGING
VOLUME
2 WATT
AMP GAIN
+
1
2
3
4
VIKING
CO LINE
INPUT
GND
OUT TO
PHONES
USB
USB
TRIG 1
TRIG 2
TRIG 3
TRIG 4
MSG
MSG
MSG
MSG
POWER
PAGE
MUTE
AUDIO
PAGE
LOUD
RING
+ -
IO COM
+ SPK -
OUTPUT
13.8V AC
Adapter
(included)
120V AC
Pre-Out or
Tape Out
Main In or
Tape In
L R
Stereo Receiver
L R
TIP:
If the first part of a door chime recording is not heard, and it has been determined the 12V DC page trigger is
wired with proper polarity, then the whole house audio system must need additional delay time before it is ready to
pass audio. This can be corrected by programming a “Trigger Delay” time in the
SLP-4
. The Trigger Delay time is
a selection in the
SLP-4
Message Manager application, which is typically used to load custom .wav audio files from
a PC via a USB cable (see page 9). The delay can be programmed from 1 to 9 seconds, and is from when the
SLP-
4
provides the page trigger signal, until the recording starts to play.