5
Zone 1
Zone 2
Zone 3
Zone 4
©
MODEL ZPI-4
VIKING
ELECTRONICS
HUDSON, WI 54016
FOUR ZONE PAGING INTERFACE
OPTIONAL MUSIC AMP
OUT TO AMP'S (+) INPUT
OUT TO AMP'S (-) INPUT
IN FROM AMP'S (+) OUTPUT
IN FROM AMP'S (-) OUTPUT
TELCO IN
TELCO OUT
MUSIC IN
MUSIC OUT
INPUT CONTACTS
OUTPUT CONTACTS
NIGHT RING
NIGHT CONTACTS
POWER
13.8 VAC
PWR
NIGHT
WARBLE
VOLUME
PAGE
ALERT
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
+
+
+
+
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
OPTIONAL PAGING AMP
OUT TO AMP'S (+) INPUT
OUT TO AMP'S (-) INPUT
IN FROM AMP'S (+) OUTPUT
IN FROM AMP'S (-) OUTPUT
VIKING
1 2 3 4 5 6 7 8
Paging
Amplifier
(not included)
Input
Output
In this mode, one external amplifier handles both paging and background music. An internal relay capable
of switching between paging signal and music signal sends input to this amp, the amplified signal is returned
and the
ZPI-4
sends it to the correct zone(s).
Advantages:
Up to a 350 watt amplifier may be used when driving 70V speakers, only one amplifier is
required.
Limitations:
The amplifier needs to be limited to 200 watts, each speaker zone is limited to an 8 ohm
minimum impedance, the amplifier must be able to drive the speakers of all zones (Example: 4 zones at 8
ohms per zone equals a 2 ohm load during an all call); if background music is used, all zones will receive
background music and it will be muted in all zones during a page.
To set up the
ZPI-4
in the single amplifier mode:
3. Single Amplifier Mode
Step 1.
Attach ZONE 1 screw terminals to the speaker(s) for Zone 1.
Step 2.
Repeat step 2 for each of the remaining three zones.
Step 3.
Attach the paging amp as shown in the diagram.
Step 4.
Set DIP switch 1 to the ON position. This tells the
ZPI-4
that it is operating in the single amplifier
mode.
