Simplex 4002 CPU Replacement Board. ASSY 562-909

Refurbished, fully functional board without metal box/cabinet.

This is a replacement board for Simplex 4002.

The 4002 is a battery-backed, U.L. listed, power-limited, electrically-supervised fire alarm system.

We check for these troubles:

• NAC’s Supervision
• NAC’s Activation
• Ground
• Zone Activation
• Zone Supervision
• Battery Trouble
• Battery Charge
• Battery Supervision
• AC Trouble
• 24 Volt Resettable
• 24 Volt Non-Resettable