Grade B, A, and AA line supervision
12 or 24 VDC input power
16 programmable supervised or non-supervised contacts
2 Form-C 5 A, 28 VDC contacts for load switching
2 dedicated inputs for tamper and power failure status
On-board termination jumpers
DIP switch-selectable addressing
Elevator control, support for 128 floors
Status LED for host communication and heartbeat
Variable resistor values for line supervision