Esser FX808379 ADP-N3S-EDP Redundant Data Bus Adapter - For Secondary Panel

An adapter card that enables a second fire alarm panel to join an established redundant data bus. It performs the same function as the sister model; the difference is that it does not supply power to the line for redundant operation and draws its power from the main adapter. In redundant FlexES Control panels, redundant control of fire department remote units cannot be established without this card. Thus, the information flow to the fire department does not depend on a single panel remaining operational.