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HANDSET INTERCOM
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yodels;
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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AT-206
2
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Components available
l AT-406 Boxed set
l AT-406P Decorative boxed set (N/A in USA)
l AT-306 Add-on sub
(add’1
2 pcs max.)
AT-306
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AT-306 AT-306
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Power supply:
SKK-620 in USA or
l TAR-3 relay for external signalling device.
PS-GD,
or 4 pcs SUM-3(AA) batteries.
Powered by a separate 6V DC power supply.
NAMES & FEATURES
AT-206
master
Battery check
LED
CALL button
Battery
compartment
AT-306
sub
CALL button
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Features
Package Contents
l Handset Intercom set (AT-406)
or Sub station (AT-306)
l Mounting bracket
l Packet of screws
l Installation
&
Operation Manual
2-handset communication system
suited for:
R.V. cab-to-camper, Boat deck-to-cabin,
Limo. chauffer to back seat, and
Restaurant kitchen to bar, etc.
l
Up to 3 subs
l Electronic call tone, not adjustable
l Front loading batteries
l Battery or DC powered
l External signalling device
PRECAUTIONS ON INSTALLATION & WIRING
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Mounting
AT-406 set is designed for indoor use only. Do not install outdoors.
It must be used in wall-mounted applications only.
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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
50cm,
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
or
PS-6D).
own 6VDCpower supply (SKK-620
AT-306
is
20”
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= Loading batteries
Slide down front battery cover. Place four SUM-3 (AA)
batteries into compartment. Observe polarity.
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Battery LED indicator
1 . LED is brightly lit.
+
Batteries are powerful enough.
2. Becomes dim during use.
-+
Batteries are getting weaker.
3. LED is no longer lit.
-+
Batteries are exhausted. Replace all
four batteries with new ones.
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