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The charcoal gray AT-406B Indoor Handset-to-Handset Audio Only System from Aiphone is designed for two-way communication and consists of one AT-206 Master and one AT-306 Sub Unit. Up to 2 additional subs (not included) can be added to the system.
The call button on the master alerts all subs in the system, whereas the sub alerts only the master unit. Both the AT-206 and AT-306 can be powered by 4 AA batteries or 6 VDC power supply (both not included). Any particular station can also be signaled by a bell or a light, while the handset rings using a TAR-3 relay (available separately).
One master unit and one sub unit included
System supports an additional 2 sub units
Electronic call tone (not adjustable)
Battery or DC powered (both not included)
Front loading batteries
Supports external signaling devices
In the Box
Aiphone AT-406B Indoor Handset-to-Handset Audio-Only Intercom System (Charcoal Gray)
AT-206 Master Unit
AT-306 Sub Unit
Packet of Screws
Limited 1-Year Warranty
Table of Contents
6 VDC, 120 mA; 0 A standby
DC Power Supplies: SKK-620 (in USA), PS-6D
4 x SUM-3 AA batteries (Do not use DC power supply when batteries are installed)
Call button rings all subs, pick up any phone, sub rings master only, common talk