Aiphone AT-406: Handset Intercom

• Two-way handset intercom system
• One or two subs (AT-306) can be added
• External signaling device can be added at each station (via TAR-3)
• DC (SKK-620) or battery (four "AA") powered with battery status indicator
• Available in charcoal gray (AT-406B)

Power Source	6V DC, 150mA. Use SKK-620 or 4 "AA" batteries.
Communication	Press "CALL" button to ring other station(s). Common talk system.
Wiring	2 wires, non-polarized.
Distance	2300' with 22AWG (2-station set). 5400' with 18AWG (2-station set). 1300' with 22AWG (master to farthest of 3 subs). 3100' with 18AWG (master to farthest of 3 subs).

• AT-406 Installation and Operation Manual
• TAR-3 Call Extension Relay Spec Sheet
• TAR-3 Call Extension Relay Spec Instructions