The HDM-204 Module provides the HCP-204E Fire Alarm
Control Panel with up to 4 Class B (Style B) or 2 Class
A (Style D) Initiating Circuits. In addition it provides up
to 2 Class A/B (Style Z/Y) Indicating Circuits which are
rated for 1.7 Amps each. Each of the indicating circuits
can be configured for silenceable or non silenceable. In
addition each circuit comes with an individual trouble
indicator. All circuits are power limited for use with limited
energy cable. The HDM-204 consists of a PC board
which mounts at the bottom of the chassis. The PC
board is connected via cables to the board on the main
chassis.