How to Determine NFPA Class & Style For the SLC & NAC Loops of the DS9400 Series and D7024 FACP

[#1]

Issue

What is the Class and style for the Multiplex Buss and the NAC circuits on the D7024/DS9400 panel?

Solution

The Multiplex Buss - Class B Style 3.5 NAC circuits on the panel are Class B Style Y. If a D7015 Class A converter is used on the NAC circuit it would be a Class A Style Z.

Part numbers D7024, DS9400, DS9400I, DS9400M