83096400
HANDSET INTERCOM
AT-406
AT-306
Set
Additional sub
INSTALLATION OPERATION MANUAL
SYSTEM OUTLINE COMPONENTS
AT-406 is a Handset Intercom set, allowing two-way calling communication.
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Package Contents
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AT-206
AT-306
AT-306
AT-306
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Handset Intercom set (AT-406)
or Sub station (AT-306)
Mounting bracket
Packet of screws
Installation Operation Manual
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Components available
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Power supply:
SKK-620 in USA or
TAR-3 relay for external signalling device.
Powered by a separate 6V DC power supply.
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AT-406 Boxed set
AT-406P Decorative boxed set (N/A in USA)
AT-306 Add-on sub 2 pcs max.)
or 4 pcs
batteries.
NAMES FEATURES
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Features
AT-306
AT-206
sub
master
2-handset communication system
suited for:
R.V. cab-to-camper, Boat deck-to-cabin,
Battery check
LED
CALL button
Limo.
to back seat, and
Restaurant kitchen to bar, etc.
CALL button
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Up to 3 subs
Electronic call tone, not adjustable
Front loading batteries
Battery or DC powered
External signalling device
Battery
compartment
PRECAUTIONS ON INSTALLATION WIRING
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Mounting
= Loading batteries
AT-406 set is designed for indoor use only. Do not install outdoors.
It must be used in wall-mounted applications only.
Slide down front battery cover. Place four SUM-3 (AA)
batteries into compartment. Observe polarity.
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Wiring
AT-406 can be wired with 2 non-polarized wires. When add-on sub(s)
installed, connect in loop or home run. Keep audio wires 20”
away from any AC wiring, fluorescent lights, dimmer switches, etc.
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External signalling device
Any particular station can be signalled by bell or light, while it rings.
Install TAR-3 relay powered by its own 6V DC power supply (SKK-620
or
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Battery LED indicator
1 . LED is brightly lit.
Batteries are powerful enough.
AT-306
2. Becomes dim during use.
Batteries are getting weaker.
3. LED is no longer lit.
ii!,
Batteries are exhausted. Replace all
four batteries with new ones.
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WIRING
AT-206
AT-306
AT-306
AT-306
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NP: Non-polarized
6V DC power supply.
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SKK-620: (+) Red, (-) Black.
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(+) Red, (-) White.
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NP
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MOUNTING
AT-206
AT-306
Mount the intercom on bracket, aligning at the marks. Pull down on
bracket, until it properly locks. Terminal section is on the back side.
Do not disassemble the unit. For surface wall cable run, outlet hole is
provided on the top or bottom of chassis.
OPERATIONS
Press CALL button to call other station(s)(max. 3 subs). It rings as long as CALL button is pressed. Communicate on handsets.
At conclusion, replace handset onto cradle. If not hung up, battery power is consumed.
External device, connected to a station, is activated as long as call tone rings on handset.
TECHNICAL PRECAUTIONS
Do not hold hook switch down while handset is off hook, as the call tone sounds very loud through handset receiver.
Do not connect AC wires to any terminal on any unit.
Do not use DC power supply when the batteries are installed.
Do not install AT-406 in places subjected to temperature/humidity extremes, dust, oil, chemicals, salt, etc.
Clean AT-406 with a soft cloth dampened with neutral household cleanser. Never use any abrasive cleaner or cloth.
SPECIFICATIONS (AT-406)
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Power source:
Power supply:
Communication:
Wiring:
6V DC, 120mA. OA standby.
SKK-620 in USA or
Electronic tone rings opponnent station(s). Common talk system with handset.
2 wires parallel, non-polarized.
power supply. Or 4 pcs
batteries.
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Wiring distance:
210H x 80W x 52D.
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x 2”D.
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Dimensions weight:
AT-206: 310g (0.68 Ibs.) approx.
AT-306: 280g (0.62 Ibs.) approx.
Aiphone warrants its products to be free from defects of material and workmanship under normal use and service for a period of one
year after delivery to the ultimate user and will repair free of charge or replace at no charge, should it become defective upon which
examination shall disclose to be defective and under warranty. Aiphone reserves unto itself the sole right to make the final decision
whether there is a defect in materials and/or workmanship; and whether or not the product is within the warranty.
This warranty shall not apply to any Aiphone product which has been subject to misuse, neglect, accident, or to use in violation of
instructions furnished, nor extended to units which have been repaired or altered outside of the factory. This warranty does not cover
batteries or damage caused by batteries used in connection with the product.
This warranty covers bench repairs only, and any repairs must be made at the shop or place designated in writing by Aiphone.
Aiphone will not be responsible for any costs incurred involving on site service calls.
Aiphone Co., Ltd., Nagoya, Japan
Aiphone Corporation, Bellevue, WA, USA
HOME, BUSINESS, INDUSTRY.
Printed in Japan (E)
AT-406-I (E) 0896E
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