Viking ZPI-4 Instructions for use

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Power: 120V AC/13.8V AC, 1.25A adapter provided
Dimensions: 211mm x 160mm x 46mm (8.30" x 6.30" x 1.80")
Shipping Weight: 1.5 kg (3.2 lbs)
Environmental: 0° C to 32° C (32° F to 90° F) with 5% to 95%
non-condensing humidity
Relay Contacts: 5 Amps@30V DC/250V AC each (200w@8Ω)
REN: 0.5 A
Artificial Talk Battery Voltage: 24V DC
Connections: (32) cage clamp screw terminals
Four Zone Paging Interface
tact closure, a ringing C.O. or a ringing analog PABX/KSU station.
The ZPI-4 is compatible with ringing C.O. lines, Centrex lines and analog PABX/KSU station
ports (disconnects on silence, CPC, busy or time-out) as well as unused trunk inputs, and will
interface directly with standard pag-
ing ports.
• Touch Tone control of four zones, expandable to
8 zones
• Switches line level signal to amplifiers or amplified
signal to speakers (amplifier(s) not included)
• Balanced audio circuitry for low noise
• Night bell warble with adjustable level from con-
tact closure or ringing analog line
• Input provided for background music
• Separate paging and background music level
adjustments
• Background music automatically mutes in paged
zone(s) in all but single amplifier mode
• All-call and five group call patterns, selected by
Touch Tones
• Adjustable page alert tone level
• Interfaces with ringing C.O. lines, Centrex lines,
and analog station ports, paging ports and
unused phone system trunk ports
• Disconnects on silence, CPC, busy or time-out
• Screw terminals for all input/output connections
• Compatible with Viking’s FBI-1A Anti-Feedback
Paging Interface (Fax Back Document 465)
The ZPI-4 is a four-zone Touch Tone controlled paging
system capable of switching a line level signal (600
ohms) to amplifiers, 70V signal to speakers or an ampli-
fied signal (200 watts maximum into 8 ohms) to speakers.
The ZPI-4 features balanced audio circuitry throughout
for low noise and compatibility with balanced paging sys-
tem inputs and outputs.There are separate level controls
for paging and background music, and background music
can be disabled on a per-zone basis. Also provided is a
night bell with adjustable volume activated by a dry con-
F
Fe ea at tu ur re es s
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Sp pe ec ci if fi ic ca at ti io on ns s
ZPI-4
ZPI-4
Four Zone
Paging Interface
August 16, 2002
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EN NT TU UR RY Y
TECHNICAL
TECHNICAL
• Multiple zone paging for Centrex systems
• Multiple zone paging for phone systems with pag-
ing ports, unused analog station ports or unused
trunk inputs
• Multiple department manufacturing business
• Multilevel warehouse
• Multi building office complex
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MODEL ZPI-4
VIKING©
FOUR ZONE PAGING INTERFACE
VIKING
ELECTRONICS
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL PAGING AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT
WARBLE
VOLUME
PAGE
ALERT
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
Min Max
Ring Trip or
Trunk/Page Port
Selection
Talk Battery
ON/OFF
Time Out
Adjustment
Min Max
Zone 4 Music Shunts
Zone 4 Output
Zone 3 Music Shunts
Zone 3 Output
Zone 2 Music Shunts
Zone 2 Output
Zone 1 Music Shunts
Zone 1 Output
VOX
Sensitivity
ZONE 1 ZONE 2 ZONE 3 ZONE 4
MODEL ZPI-4
VIKING©
FOUR ZONE PAGING INTERFACE
VIKING
ELECTRONICS
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL PAGING AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT
WARBLE
VOLUME
PAGE
ALERT
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
Volume Controls
Min Max
Telco In
Telco Out
Music In
Music Out
Input Contacts
Output Contacts
Night Ring
Night Contacts
In From Amp's (-) Output
In From Amp's (+) Output
Out To Amp's (-) Input
Out To Amp's (+) Input
In From Amp's (-) Output
In From Amp's (+) Output
Out To Amp's (-) Input
Out To Amp's (+) Input
Note: Remove these shunts to eliminate background
music for each zone individually.
IMPORTANT: Electronic devices are susceptible to lightning and power station electrical surges from both the AC outlet and the
telephone line. It is recommended that a surge protector be installed to protect against such surges. Contact Panamax at (800)
472-5555 or Electronic Specialists Inc. at [phone].
!
MODEL ZPI-4
VIKING©
FOUR ZONE PAGING INTERFACE
VIKING
ELECTRONICS
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL PAGING AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT
WARBLE
VOLUME
PAGE
ALERT
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
1 2 3 4
ON DIP
ON
OFF
OFF ON
Talk
Battery
Ring
Trip
Ring Trip
Selection
Trunk/
Page
Port
Switch
1
2
3
4
ON/OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Description
Single amplifier
Two or more amplifiers
Two units
Single unit
Slave unit
Master unit
Dial tone enabled
Dial tone disabled
Note: DIP switches should be set prior to pow-
ering up the ZPI-4. If power has already been
applied, momentarily power down the unit so
the switches will take effect.
Diagram 1 Diagram 2
Diagram 3 Diagram 4 (see Diagram 3)
2.

HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
IN
FROM
AMP S
()
OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
VOLUME
PAG E
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
1 2 3 4
ON DIP
ON
OFF
Min Max
Time Out
Adjustment
Min Max
VOX
Sensitivity
OFF ON
Talk
Battery
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
IN
FROM
AMP S
()
OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
VOLUME
PAG E
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
Tip
Ring
To Phone System's Night
Ring Contact Closure
To Phone System's Night
Ring Output
To Background
Music Source
C.O. Line or
Analog
PABX/KSU
Station
Ring
Trip
Paging
Selection
Trunk/
Page Port
A. System Interface
2. Paging from an Unused Phone System Trunk Input
Note: In this mode, the ZPI-4’s time out and VOX sensitivity are disabled. The ZPI-4 will release the trunk as soon
as the paging party hangs up.
Step 1. Set the RING TRIP/TRUNK/PAGE PORT switch to the RING TRIP position (all the way to the left).
Step 2. Set the TALK BATT switch to the OFF position (all the way to the left).
Step 3. Attach TIP and RING to the TELCO IN screw terminals.
Step 4. Attach the background music source, if used, to the MUSIC IN screw terminals.
Step 5. Adjust the TIME OUT ADJUST as required (adjustable from approximately 5 seconds to 80 seconds). This should
be set to a second or two longer than the longest expected page. The ZPI-4 hangs up when this timer is up, and
if the timer is set for too short a time, the ZPI-4 will hang up in the middle of a page.
Notes: The VOX SENSITIVITY probably will not have to be adjusted unless the ZPI-4 is disconnecting in the
middle of a page, before the time out or there is a period of silence during a page longer than three seconds
and the ZPI-4 does not auto-disconnect.
To adjust the VOX SENSITIVITY, turn the POT counter clockwise to decrease the VOX sensitivity and clockwise
to increase it. The VOX SENSITIVITY should be increased if the ZPI-4 is auto-disconnecting in the middle of
pages, and decreased if it is not auto-disconnecting on busy signals or periods of silence more than three seconds.
Step 6. If the phone system provides a contact closure for night ring, connect a pair of wires from this closure to the NIGHT
CONTACTS screw terminals. If the phone system provides ring signal for night ring, hook up a pair of wires from
the phone system night ring output to the NIGHT RING screw terminals.
Step 7. Select dial tone if desired by putting DIP switch 4 to ON, otherwise turn it OFF.
Step 1. Set the RING TRIP/TRUNK/PAGE PORT switch to the TRUNK/PAGE PORT position (all the way to the right).
Step 2. Set the TALK BATT switch to the ON position (all the way to the right).
Step 3. Attach TIP and RING to the TELCO IN screw terminals.
Step 4. Attach the background music source, if required, to the MUSIC IN screw terminals.
Step 5. If the phone system provides a contact closure for night ring, connect a pair of wires from this closure to the
NIGHT CONTACTS screw terminals. If the phone system provides ring signal for night ring, hook up a pair of
wires from the phone system night ring output to the NIGHT RING screw terminals.
Step 6. Dial tone may be enabled as shown in Diagram 4.
1. Ring Trip Paging
POWER
13.8 VAC
PWR 1 2 3 4
()
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
PAG E
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
1 2 3 4
ON DIP
ON
OFF
OFF ON
Talk
Battery
POWER
13.8 VAC
PWR 1 2 3 4
()
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
To Phone System's Night
Ring Contact Closure
To Phone System's Night
Ring Output
To Background
Music Source
Unused
PABX/KSU
Trunk Port
Ring
Trip
Paging
Selection
Trunk/
Page Port
Diagram 5
Diagram 6
3.

Note: You must be able to send Touch Tones through the PABX’s paging port for this mode to work.
Step 1. Set the RING TRIP/TRUNK/PAGE PORT switch to the TRUNK/PAGE PORT position (all the way to the right).
Step 2. Set the TALK BATT switch to the OFF position (all the way to the left).
Step 3. Attach a pair of wires from the paging port to the TELCO IN screw terminals.
Step 4. Attach the background music source, if required, to the MUSIC IN screw terminals.
Step 5a. If the phone system provides a page dry contact closure for paging, connect a pair of wires from this closure to
the INPUT CONTACTS screw terminals of the ZPI-4. In this application, the ZPI-4’s time out and VOX sensitivity
are disabled. The ZPI-4 will release the page port as soon as its INPUT CONTACTS open.
Step 5b. If the phone system does not provide a page dry contact closure, adjust the TIME OUT ADJUST as required
(adjustable from approximately 5 seconds to 80 seconds). This should be set to a second or two longer than the
longest expected page. The ZPI-4 hangs up when this time is reached, and if the timer is set too short, the ZPI-4
will hang up in the middle of a page.
Notes: The VOX SENSITIVITY probably will not have to be adjusted unless the ZPI-4 is disconnecting in the
middle of a page, before the time out or there is a period of silence during a page longer than three seconds
and the ZPI-4 does not auto-disconnect.
To adjust the VOX SENSITIVITY, turn the POT counter clockwise to decrease the VOX sensitivity and clockwise
to increase it. The VOX SENSITIVITY should be increased if the ZPI-4 is auto-disconnecting in the middle of
pages, and decreased if it is not auto-disconnecting on periods of silence longer than three seconds.
Step 6. If the phone system provides a contact closure for night ring, connect a pair of wires from this closure to the
NIGHT CONTACTS screw terminals. If the phone system provides ring signal for night ring, connect a pair of
wires from the phone system night ring output to the NIGHT RING screw terminals.
Step 7. Put DIP switch 4to OFF to disable the ZPI-4’s dial tone.
3. Paging from a Phone System’s 600 Ohm Paging Port
B. Amplifier Configuration
In this mode, each paging zone has its own amplifier, and the func-
tion of the ZPI-4 is to switch the unamplified paging or background
music signal to the appropriate amplifier.
Advantages: There is no amplifier power limitation, zones can be
set to different volumes, background music is selectable per zone
and the non-paged zones will continue to get music during a page.
To set the ZPI-4 up in the four amplifier mode:
1. Four Amplifier Mode
MODEL ZPI-4
VIKING©
FOUR ZONE PAGING INTERFACE
VIKING
ELECTRONICS
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL PAGING AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT
WARBLE
VOLUME
PAGE
ALERT
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
ZONE 1 ZONE 2 ZONE 3 ZONE 4
Paging
Amplifier
(not included)
Paging
Amplifier
(not included)
Paging
Amplifier
(not included)
Paging
Amplifier
(not included)
1 2 3 4 5 6 7 8
Paging
Amplifier
Jumpers
Optional
Background
Music Amplifier
Jumpers
Step 1. Attach the ZONE 1 screw terminals to the input of the amp-
lifier for Zone 1.
Step 2. If background music is to be enabled on this zone, ensure that
the ZONE 1 music shunts are in place, covering both pins. If
not, remove the shunts.
Step 3. Repeat steps 1 and 2 for each of the remaining three zones.
Step 4. Install the included jumpers across the Optional Paging Amp
screw terminals.
Step 5. If a background music source is being used, install the
Optional Background Music Amplifier jumpers as shown.
Step 6. Set DIP switch 1 to OFF.
Step 7. Connect Paging Amps between zone outputs and speakers.
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL
MUSIC
AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
PAG E
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 1112 13 14 15 16 + - + - + - + -
ON
1 2 3 4
ON DIP
ON
OFF
OFF ON
Talk
Battery
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL
MUSIC
AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 1112 13 14 15 16 + - + - + - + -
ON
To Background Music Source
Min Max
Time Out
Adjustment
Min Max
VOX
Sensitivity
Note: The Time Out Adjustment is ONLY
to be used when the Phone System's Dry
Contact Closure is NOT used.
To Phone System's Night
Ring Contact Closure
To Phone System's Night
Ring Output
PABX/KSU
Page Port
Ring
Trip
Paging
Selection
Trunk/
Page Port To Phone System's Page
Dry Contact Closure
Diagram 7
Diagram 8
4.

In this mode, one external amplifier handles both paging and background music. An internal relay capable of switch-
ing 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: Any size 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 back-
ground 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
MODEL ZPI-4
VIKING©
FOUR ZONE PAGING INTERFACE
VIKING
ELECTRONICS
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL PAGING AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT
WARBLE
VOLUME
PAGE
ALERT
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
ZONE 1 ZONE 2 ZONE 3 ZONE 4
1 2 3 4 5 6 7 8
Paging
Amplifier
(not included)
Input
Output
Zone 1
Zone 2
Zone 3
Zone 4
Important: If a background music amplifier is not installed and
background music is required, install the Optional Background
Music jumpers as shown above.
In the two amplifier mode, one amp serves as the paging amplifier and the other as the background music ampli-
fier. The paging or music signal is sent to the external amplifier, returned and the amplified signal is switched by the
ZPI-4 to the correct zone or zones.
Advantages: Any size amplifier may be used when driving 70V
speakers, only (2) amplifiers (or one stereo amp) are required for 4
zones, background music is selectable per zone, and the non-
paged zones will continue to to get music during a page.
Limitations: The paging amp needs to be limited to 200 watts and
the music amp needs to be limited to 70 watts when switching 8
ohm speaker loads, each speaker zone is limited to 8 ohms mini-
mum impedance and the amp must have the ability to drive the
speakers of all zones. (Example: 4 zones at 8 ohms per zone
equals a 2 ohm load during an all call.)
To set up the ZPI-4 in the two amplifier mode:
2. Two Amplifier Mode (Paging and Music)
MODEL ZPI-4
VIKING©
FOUR ZONE PAGING INTERFACE
VIKING
ELECTRONICS
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL PAGING AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT
WARBLE
VOLUME
PAGE
ALERT
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
ZONE 1 ZONE 2 ZONE 3 ZONE 4
1 2 3 4 5 6 7 8
Music
Amplifier
(not included)
Paging
Amplifier
(not included)
Input
Output
Input
Output
Zone 1
Zone 2
Zone 3
Zone 4
Step 1. Attach the ZONE 1 screw terminals to the speaker(s) for Zone 1.
Step 2. If background music is to be enabled on this zone, ensure that the
ZONE 1 music shunts are in place, covering both pins. If back-
ground music is not desired, remove the shunts.
Step 3. Repeat steps 1 and 2 for each of the remaining three zones.
Step 4. Attach the paging amplifier and the music amplifier as shown in
the diagram.
Step 5. Set DIP switch 1 to OFF.
Diagram 9
Diagram 10
5.
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. If a background music source is being used, install the Optional
Background Music Amplifier jumpers as shown..
Step 5. Set DIP switch 1 to the ON position. This tells the ZPI-4 that
it is operating in the single amplifier mode.

C. Multiple Units
While the ZPI-4 is a four zone paging unit, it may be cascaded with an additional ZPI-4 for a total of up to eight paging
zones. The first ZPI-4 is considered the “Master” unit, and the other unit is considered a “Slave”.
FOUR ZONE PAGING INTERFACE
VIKING
ELECTRONICS
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL PAGING AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT
WARBLE
VOLUME
PAG E
ALERT
VOLUME
PAG E
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
FOUR ZONE PAGING INTERFACE
VIKING
ELECTRONICS
HUDSON, WI 54016
POWER
13.8 VAC
PWR 1 2 3 4
OPTIONAL PAGING AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
IN FROM AMP'S (-) OUTPUT
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT
WARBLE
VOLUME
PAGE
ALERT
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 + - + - + - + -
ON
Time Out
Adjustment
Min Max
MODEL ZPI-4
VIKING©
MODEL ZPI-4
VIKING©
1 2 3 4
ON DIP
ON
OFF
1 2 3 4
ON DIP
ON
OFF
OFF ON
Talk
Battery
Set the Ring Trip/Trunk/Page Port
identical to the Master Unit
On the Master Unit: Set
the Ring Trip Selection, Talk
Battery, VOX Sensitivity and
Time Out Adjustment as
shown in Installation
section B. Amplifier Con-
figuration, sections 1-3.
Master Unit Slave Unit
Set the Talk Battery
Switch to OFF
Diagram 11
Step 1. Install the Master unit as explained in section A. System Interface.
Step 2. Select an amplifier mode, shown in Installation section B. Amplifier Configuration, sections 1-3.
Step 3. Set DIP switch 2to ON for both the Master and Slave. This sets both ZPI-4s for multiple units.
Step 4. On the Slave unit, set DIP switch 3to ON. On the Master unit, leave OFF.
Step 5. If dial tone is desired, set DIP switch 4on the Master unit to ON. This will enable dial tone for both units. On the
Slave unit, DIP switch 4should remain OFF.
Step 6. On the Slave unit, set the RING TRIP/TRUNK/PAGE PORT switch to the same as the Master.
Step 7. On the Slave unit, set the TALK BATTERY switch to OFF.
Step 8. Connect a pair of wires from the TELCO OUT of the Master to the TELCO IN of the Slave.
Step 9. Connect a pair of wires from the MUSIC OUT of the Master to the MUSIC IN of the Slave.
Step 10. Connect a pair of wires from the OUTPUT CONTACTS of the Master to the INPUT CONTACTS of the Slave.
Step 11. If night warble is desired through the Slave’s zones, connect a pair of wires from the NIGHT RING or NIGHT
CONTACTS (depending on which application you are using) of the Master to the NIGHT RING or NIGHT CONTACTS
of the Slave.
Note: In the Trunk/Page Port mode, the Slave’s night warble volume should be set to minimum (fully counter-clock
wise). The Master’s night warble volume will control the Slave’s zones. In Ring Trip mode, the Master and Slave’s
night warble volumes will work independently.
Step 12. Set the TIME OUT ADJUSTMENT on the Slave to the maximum time (clockwise).
Step 13. Plug the power supply adapter into the power jack of the Slave, and the other end into a wall outlet.
6.

1. Selecting Zones with One ZPI-4
B. Selecting Zones
After there has been a Touch Tone entry, the ZPI-4 activates the selected zones and produces a paging alert tone. At
this point the page can be spoken into the handset of the phone. In a RING TRIP or PAGING PORT WITHOUT CON-
TACT CLOSURE application, it is necessary to keep in mind that there is a time limit on the page, set by the TIME
OUT ADJUSTMENT. Also, in these two applications, the VOX voice detect circuit will disconnect the page if three sec-
onds of silence elapse during the page. When finished paging, simply hang up.
C. Paging
Touch Tone
21
22
23
24
25
26
27
28
29
20
Unit
2
2
2
2
2
2
2
2
2
2
Zone(s)
1
2
3
4
1+2
2+3
3+4
1+2+3
2+3+4
1+2+3+4
2. Selecting Zones with Multiple ZPI-4’s
Touch Tone
1
2
3
4
5
6
7
8
9
0
Zone(s)
1
2
3
4
1+2
2+3
3+4
1+2+3
2+3+4
1+2+3+4 (All)
To page all zones, enter a Touch Tone “0”. The
ZPI-4 will activate all zones to which it is con-
nected. Otherwise, enter two Touch Tones,
with the first selecting which ZPI-4 is being
addressed, and the second selecting which
zones connected to that ZPI-4 are to be
paged. If a Touch Tone “1” is entered as the
first digit, the Master is selected. If a Touch
Tone “2” is entered as the first digit, the Slave
is selected. See diagrams to the right.
1. Ring Trip Paging
To access the ZPI-4 for ring trip paging, call the C.O., Centrex number or PABX/KSU station number the ZPI-4
is connected to. The ZPI-4 will answer on the first ring, produce dial tone (if enabled) and await Touch Tone entry
for 10 seconds. If there is a Touch Tone entry, the ZPI-4 activates the selected zone(s). If there is no Touch Tone
entry in 10 seconds, the ZPI-4 disconnects.
2. Paging from an Unused Phone System Trunk Input
To make a page with the ZPI-4 installed on a spare trunk port, simply access the trunk connected to the ZPI-4.
The ZPI-4 will produce dial tone (if enabled), wait for Touch Tone entry, and activate the selected zone(s) when it
sees a Touch Tone entry.
3. Paging from a Phone System’s 600 Ohm Paging Port
To page in this situation, access the phone system’s paging port. The ZPI-4 will detect that a page is being initiat-
ed and wait for a Touch Tone entry. When it sees an entry, it activates the selected zone(s).
A. Initiating a Page
O
Op pe er ra at ti io on n
Enter a single Touch Tone to select the zone
or zones to be paged. After this entry has
been made, the ZPI-4 activates the selected
zone(s). See diagram to the right.
Touch Tone
11
12
13
14
15
16
17
18
19
10
Unit
1
1
1
1
1
1
1
1
1
1
Zone(s)
1
2
3
4
1+2
2+3
3+4
1+2+3
2+3+4
1+2+3+4
Touch Tone
0
Unit
All
Zone(s)
All
7.

Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking Electronics, and its affiliates and/or
subsidiaries assume no responsibility for errors and omissions contained in this information. Revisions of this document or new editions of it may be issued to incorporate
such changes.
Fax Back Doc 499
ZF301280 Rev C
Printed in the U.S.A.
P
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8.
A
Ap pp pl li ic ca at ti io on ns s
The PA-2A provides loud ringing and paging to electronic key systems, 1A2
Key systems, PABX’s as well as No-KSU phones and multiline phones.
Paging is accomplished by connecting the PA-2A to a paging port or unused
C.O. line input of nearly any phone system.
The PA-2A will also generate an adjustable loud warble from up to 6 C.O.
lines or from a dry contact closure. An external “night transfer” switch can be
added to turn loud ringing on or off in night bell applications.
The PA-2A is easy to install and eliminates the installation of multiple bells,
relays and paging cards. The unit comes complete with a power supply,
amplifier and (1) paging horn.
A. PA-2A Paging Amplifier and Loud Ringer
?Need More Information on the PA-2A?
Call [phone] and select 485.
The M15W is designed to add more paging power to almost any amplified pag-
ing product, or it may be used as a primary paging amplifier.
Audio can be input from a 600 ohm source or from an
8-ohm amplified source. The 15 watt output can drive
an eight to four ohm load, or two separate two-ohm
loads, which simplifies installation of up to eight 8-ohm
speakers. Installation of up to 32 speakers is possible.
A power adapter and one 25AE Paging Horn are
included.
Note: The M15W is NOT compatible with talkback
paging products such as Viking’s HF-2WC and HF-3W.
B. M15W Paging Power Amplifier
?Need More Information on the M15W?
Call [phone] and select 481.
?Need More Information on the 25AE?
Call [phone] and select 498.
The CPA-7B is a cost effective, multi- purpose, telecom paging system.
The CPA-7B features a low noise, high fidelity amplifier, providing 6 watts of
power for a variety of telecom paging applications. It can also provide back-
ground music and night bell/common audible. In addition, multiple units may be
daisy-chained for larger paging applications.
Compatible with ringing C.O. lines, Centrex lines and
analog PABX/KSU station ports as well as unused
trunk inputs, the CPA-7B will also interface directly
with standard paging ports. The CPA-7B is easy to
install and can eliminate the installation of multiple
bells, relays and paging cards.
For loud ringing, the CPA-7B generates an adjustable loud warble from a dry contact closure,
a ringing C.O. or a ringing analog PABX/KSU station.
C. CPA-7B General Purpose Telecom Paging System
?Need More Information on the CPA-7B?
Call [phone] and select 455.
?Need More Information on the 25AE?
Call [phone] and select 498.