• RS-485 communication with the elevator controller
• Connectable with up to 16 relays to control the floor buttons in the elevator. Three types of relays are supported: Button Relay, Call Elevator Relay and Auto Button Relay
• DIP switch settings for device address and relay types. Supports 3 relay types: Call Elevator, Button, and Auto Button)
• Up to 8 expander elevator controllers can be linked to the elevator controller (AC-EC2128-8RH)
• Control the elevator via the relay
• Supports elevator controller linkage, reporting the event to the system.