System Interface - Viking ZPI-4 Technical Practice

A. System Interface
1. Ring Trip Paging
ON ON DIP
OFF 1 2 3 4
Paging
Selection
Ring Trunk/
Trip Page Port
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.
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.
ON
ON DIP
OFF
1 2 3 4
Paging
Selection
Ring
Trip
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.
IN FROM AMP S ( ) OUTPUT
HUDSON, WI 54016 IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
POWER
IN FROM AMP'S (-) OUTPUT
13.8 VAC
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
PWR 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
ON
Talk
VOX
Battery Sensitivity
OFF ON
Min
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
POWER
IN FROM AMP'S (-) OUTPUT
13.8 VAC
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
PWR 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
ON
Talk
Battery
Trunk/ OFF ON
Page Port
VOLUME
Diagram 5
PAGE
VOLUME
MUSIC
VOLUME
+ - + - + - + -
C.O. Line or
Time Out
Analog
Adjustment
PABX/KSU
Station
Max Min Max
Diagram 6
( )
POWER
PAGE
13.8 VAC
VOLUME
NIGHT CONTACTS
MUSIC
VOLUME
OUTPUT CONTACTS
INPUT CONTACTS
+ - + - + - + - PWR
Unused
PABX/KSU
Trunk Port
To Background
Music Source
IN FROM AMP S ( ) OUTPUT
HUDSON, WI 54016 IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
OPTIONAL MUSIC AMP
POWER
IN FROM AMP'S (-) OUTPUT
13.8 VAC
IN FROM AMP'S (+) OUTPUT
OUT TO AMP'S (-) INPUT
OUT TO AMP'S (+) INPUT
NIGHT CONTACTS
NIGHT RING
OUTPUT CONTACTS
INPUT CONTACTS
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
PWR 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
ON
Tip
Ring
To Background
Music Source
( )
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 RING
MUSIC OUT
MUSIC IN
TELCO OUT
TELCO IN
1 2 3 4 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
VOLUME
PAGE
VOLUME
MUSIC
VOLUME
+ - + - + - + -
To Phone System's Night
Ring Contact Closure
To Phone System's Night
Ring Output
PAGE
VOLUME
MUSIC
VOLUME
3.