ANC control
* Enables ease of interfacing to building services providing manual control & indication in an installation
* Controls enabled by the keyswitch on the Syncro AS panel
* 4 push button controls, 8 LED indicators & 3 clean contact relays
* Simple 4 wire connection to the Syncro AS panel, 2 for power, 2 for RS485
* the ANC control may be mixed on the RS485 bus with other expansion/control devices