Viking PI-1A Product Manual

Designed, Manufactured and Supported in the USA
VIKING
C O M M U N I C A T I O N & S E C U R I T Y S O L U T I O N S
Interface Your Paging System with
Viking's Telecom Paging Interface allows you to
provide paging from nearly any phone system in-
stead of from a microphone. You can also provide
background music and electronic night bell over
the audio system.
The PI-1A features a built-in voice activated (VOX)
or AC ring activated relay which provides D.P.D.T.
contacts for muting background music during pag-
ing or to provide an electronic night bell. These
contacts are necessary when interfacing with sys-
tems such as Panasonic, South Western Bell, In-
tertel, etc., which do not provide a paging contact
closure.
In the event a paging port is not available, the PI-
1A can provide talk battery to allow connection of
the public address system to an unused line/trunk
input on the phone system.

Features

• Floating 600 ohm output
• Selectable 22V DC talk battery for interfacing
with unused phone system line input/trunk
ports
• Paging port interface
• Ringing analog line input for night bell
• Contact closure input for night bell
• DPDT normally open and normally closed VOX
activated contacts for cutting out background
music
• Adjustable VOX contact time-out
• Adjustable VOX trigger sensitivity
• Adjustable ring volume
• Adjustable ring pitch
• Wall mount housing: (2) #6x3/4 panhead screws
included
www.vikingelectronics.com
Information: (715) 386-8861
PRODUCT MANUAL
Nearly Any 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. The ring pitch and vol-
ume are adjustable allowing you to differentiate be-
tween multiple ringing lines.
Applications
• 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
Note: The PI-1A is not compatible with ring trip paging
applications. See Viking models FXI-1 (DOD# 494),
PA-15 (DOD# 486), or RAD-1A (DOD# 410).

Specifications

Power: 120V AC/12V DC 500mA, UL listed adapter pro-
vided
Dimensions: 111mm x 76mm x 36mm (4.38" x 2.97" x
1.38")
Shipping Weight: .48 kg (1.06 lbs)
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
@ 0.5A
Maximum Ring Output: 0.5V AC RMS no load, 0.4V AC
RMS @ 600 ohms
VOX Minimum Audio Signal to Activate Relay: At 1KHz
with VOX sensitivity POT set to minimum: -17dbm, with
POT set to maximum: -37dbm
VOX Time Out Delay: 0.9 sec min / 4.3 sec max
Talk Battery: 22V DC
PI-1A
Telecom Paging
Interface
July 11, 2013