Simplex 565-124
Simplex 565-124
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Simplex 565-124 4-Wire Duct Housing Replacement Board
The Simplex 565-124 is an interface board assembly for the 4098-9706 duct housing used in fire alarm duct detector installations. This replacement board provides signal conditioning and interface circuitry for connecting duct-mounted smoke detectors to Simplex fire alarm control panel circuits, supporting 4-wire sensor configurations.
Key Features:
• Application: Duct housing detector interface board for ceiling plenum installations
• Compatibility: Designed for 4098-9706 duct detector housing
• Circuit Interface: 4-wire detector signal conditioning
• Reliability: Replacement board for system restoration and maintenance

