PI 1 Technical Practice Viking Universal Telecom / Paging Interface Information Tech Info
User Manual: Viking PI-1 Universal Telecom / Paging Interface Technical Information VIKING System User Guides, Manuals and Brochures
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TECHNICAL
TECHNICAL
Viking’s Universal Telecom/Paging Interface allows you
to provide paging from nearly any phone system instead
of from a microphone. You can also provide background
music and electronic night bell over the audio system.
The PI-1 features a built-in voice activated (VOX) or AC
ring activated relay which provides D.P.D.T. contacts for
muting background music during paging or to provide an
electronic night bell. These contacts are necessary when
interfacing with systems such as Panasonic, South
Western Bell, Intertel, etc., which do not provide a pag-
ing contact closure.
In the event a paging port is not available, the PI-1 can provide talk battery to allow connection
of the public address system to an unused trunk input on the phone system.
The electronic night bell feature is activated by a standard ringing analog PABX/KSU station
circuit or by a common audible contact closure provided by an electronic key system.
Interface Your Paging System with
Nearly Any Phone System!
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• Floating 600 ohm output
• Selectable 12V DC talk battery for interfacing
with unused trunk ports
• Paging port interface
• Ringing analog line input for night bell
• Contact closure input for night bell
• Normally open and normally closed VOX
activated contacts for cutting out background
music
• Adjustable VOX contact time-out
• Adjustable ring volume
Power: 120V AC/12V DC 500mA, UL listed adapter provided
Dimensions: 133mm x 89mm x 44mm (5.25” x 3.5” x 1.75”)
Shipping Weight: .45 kg (1 lb)
Environmental: 0°C to 32°C (32°F to 90°F) with 5% to 95% non-
condensing humidity
Relay Contacts: 30V DC@1A, 110V DC@0.3A, 125V AC @0.5
Maximum Ring Output: 490mV AC RMS no load, 150mV AC
RMS@600 ohms
VOX Minimum Audio Signal to Activate Relay: 50mV AC
RMS@1K Hz
Talk Battery: 12V DC
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• Integrate your public address system with
nearly any phone system
• Cut out background music during paging
• Electronic night bell from ringing line or
contact closure
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PI-1
PI-1
Universal Telecom/
Paging Interface
March 8, 2006
IF YOU HAVE A PROBLEM WITH A VIKING PRODUCT, PLEASE CONTACT: VIKING TECHNICAL SUPPORT AT (715) 386-8666
Our Technical Support Department is available for assistance Monday 8am - 4pm and Tuesday through Friday 8am - 5pm central time. So that we can give you better service, before you call please:
1. Know the model number, the serial number and what software version you have (see serial label).
2. Have your Technical Practice in front of you.
3. It is best if you are on site.
RETURNING PRODUCT FOR EXCHANGE
The following procedure is for equipment that has failed out-of-box (within 10 days of purchase):
1. Customer must contact Viking’s Technical Support at 715-386-8666 to determine possible causes for the problem. The customer
MUST be able to step through recommended tests for diagnosis.
2. If the Technical Support Product Specialist determines that the equipment is defective based on the customer's input and trou-
bleshooting, a Return Authorization (R.A.) number will be issued. This number is valid for fourteen (14) calendar days from the
date of issue.
3. After obtaining the R.A. number, return the approved equipment to your distributor, referencing the R.A. number. Your distributor
will then replace the product over the counter at no charge. The distributor will then return the product to Viking using the same
R.A. number.
4. The distributor will NOT exchange this product without first obtaining the R.A. number from you. If you haven't followed
the steps listed in 1, 2 and 3, be aware that you will have to pay a restocking charge.
RETURNING PRODUCT FOR REPAIR
The following procedure is for equipment that needs repair:
1. Customer must contact Viking's Technical Support Department at 715-386-8666 to obtain a Return Authorization (RA) number.
The customer MUST have a complete description of the problem, with all pertinent information regarding the defect, such as
options set, conditions, symptoms, methods to duplicate problem, frequency of failure, etc.
2. Packing: Return equipment in original box or in proper packing so that damage will not occur while in transit. Static sensitive equip-
ment such as a circuit board should be in an anti-static bag, sandwiched between foam and individually boxed. All equipment
should be wrapped to avoid packing material lodging in or sticking to the equipment. Include ALLparts of the equipment. C.O.D.
or freight collect shipments cannot be accepted. Ship cartons prepaid to: Viking Electronics,1531 Industrial St, Hudson, WI 54016
3. Return shipping address: Be sure to include your return shipping address inside the box. We cannot ship to a PO Box.
4. RA number on carton: In large printing, write the R.A. number on the outside of each carton being returned.
WARRANTY
Viking warrants its products to be free from defects in the workmanship or materials, under normal use and service, for a period of one year from the date of purchase from any authorized Viking distributor or 18 months from the date manufactured, which ever is
greater. If at any time during the warranty period, the product is deemed defective or malfunctions, return the product to Viking Electronics, Inc., 1531 Industrial Street, Hudson, WI., 54016. Customer must contact Viking's Technical Support Department at 715-386-
8666 to obtain a Return Authorization (R.A.) number.
This warranty does not cover any damage to the product due to lightning, over voltage, under voltage, accident, misuse, abuse, negligence or any damage caused by use of the product by the purchaser or others.
Vikings sole responsibility shall be to repair or replace (at Viking's option) the material within the terms stated above. VIKING SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING INCIDENTAL OR CONSEQUENTIAL DAMAGES
RESULTING DIRECTLY OR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESSED OR IMPLIED, OR FOR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages,
so this limitation may not apply to you.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITYAND FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE HEREBY EXCLUDED BEYOND THE ONE YEAR
DURATION OF THIS WARRANTY. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you.
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 respon-
sibility 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 490 ZF290500 Rev EPrinted in the U.S.A.
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When voice is detected on the “AUDIO IN” circuit, the PI-1 opens the normally closed contacts and closes the normally
open contacts allowing background music source to be interfaced without interfering with paging. Depending on the selec-
table time-out delay, the music source will come back between .33 and 3.5 seconds after the last word. A floating 600 ohm
output is provided to interface with most standard public address systems.
The PI-1 will also produce a 600 ohm night bell warble from a contact closure or a ringing analog PABX/KSU station. This
warble volume can be adjusted using the RING VOL potentiometer as shown above.
VIKING©
MODEL PI-1
POWER - 12VDC 1 2 3 4 5 6 7
NIGHT
RING
RJ11
UNIVERSAL TELECOM/PAGING
INTERFACE
RING VOL TIME OUT
PT PP
VIKING
ELECTRONICS
HUDSON,WI 54016
AUX
RELAY
AUDIO IN
RELAY
N.O. COM N.C. AUDIO OUT
12V DC
Adapter
(included)
Background Music
Source (not included)
Paging Amplifier - Floating 600 ohm
output, connect to input of paging amplifier.
Auxiliary Relay Jack - The auxiliary modular relay jack
is a second set of contacts that work in conjunction with
terminal screws 3, 4 and 5. A regulated 12V DC output
is provided to operate external relays or other devices.
Ringing Analog
PABX/KSU Station
To Contact Closure
(for optional warble)
Yellow
Black
Red
Green
6 5 4 3 2 1
+12V DC
Normally Closed
Common
Normally Open
Ground
Unused Trunk Input or Paging Output - Connect to a
page port output or an unsed C.O. line input (trunk port)
Ring Volume
Control
-
0mV
+
490mV
-
.33s
+
3.5s
Time Out
Delay
This adjusts the time between the last word and the
relay releasing (contact closure). Minimum: 0.33
seconds, maximum: 3.5 seconds.
Time Out Delay - The
voice activated contact
closures (terminal screws
3, 4, 5 and jack pins 2, 3,
4) on the PI-1 have a
selectable time out delay.
Ring Volume Control - The
ringing (warble) output volume
is adjustable as shown to the
right. Minimum: 0mV RMS,
maximum: 490mV RMS.
Switch
PP
PT
Talk Battery
OFF
ON
For Use With
Paging output of PABX/KSU
Unused trunk input of PABX/KSU
