The Simplex 566-151 is the current replacement central processing unit (CPU) board for the Simplex 4005 conventional fire alarm control panel. The 566-151 is the designated factory replacement for the earlier 565-707 CPU board, providing the same 4005 panel processing and control functions in an updated PCB form factor. Technicians servicing 4005 panels with a failed 565-707 CPU can install the 566-151 as a direct replacement to restore full panel operation. The 566-151 is the main system processor governing zone monitoring, alarm annunciation, NAC output activation, and trouble/supervisory logic for the 4005.
Key Features
- Replacement CPU board for the Simplex 4005 fire alarm control panel
- Direct replacement for the Simplex 565-707 CPU board
- Governs zone monitoring, alarm, supervisory, and trouble logic
- Controls NAC output activation and annunciator functions
- Restores full 4005 panel operation upon installation
Compatible Panels
Simplex 4005
Life Safety Consultants has sourced and supplied Simplex 4005 CPU boards since 2002. For technical questions about the 566-151 or the 565-707 it replaces, call 1-888-557-0558 or email sales@lifesafetycom.com.
Additional information
| Weight | 3 lbs |
|---|---|
| Dimensions | 5 × 5 × 5 in |
| Condition | New |
| Part Type | CPU Board |
| Manufacturers | Simplex |














