



742-346 | Simplex NAC Panel CPU Board for 4009-9201 IDNet Extender
- Regular price
- $899.00
- Sale price
- $899.00
- Regular price
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Product Description P/N: 742-346
Description
The Simplex 742-346 NAC Panel CPU Board is a replacement module designed for the Simplex 4009-9201 IDNet NAC Power Extender Panels. It restores core processing and communication functions, ensuring reliable supervision and operation of notification appliance circuits. This board helps maintain consistent fire alarm signaling performance in facilities where safety and uptime are critical.
Technical Specifications
Part Number | 742-346 |
Brand | Simplex |
Manufacturer | Johnson Controls |
Condition | New/Never Used Surplus |
Category | PLCs and Accessories |
Subcategory | PLC Expansion Modules |
Part Type | CPU Board, NAC Panel, Power Extender Panel |
Compatibility | Simplex 4009-9201 IDNet NAC Power Extender Panels |
Supported NACs | 4 Class B (expandable with option cards) |
AC Input | 120 VAC, 3 A, 60 Hz |
Battery Input | 24 VDC, 8 A |
Notification Appliance Power Output | 24 VDC, 8 A |
Optional Expansion Cards | - 4009-9808 Class A Adapter Card - 4009-9807 NAC Option Card - 4009-9809 IDNet Repeater Card - 4009-9810/9811 Fiber Optic Receiver |
Dimensions | 7.5 × 7.5 × 7.5 in |
Weight | 2 lbs |
Information About 742-346
The 742-346 is a Simplex NAC Extender CPU Board specifically engineered for the 4009-9201 IDNet NAC Power Extender Panels. It provides the control logic and processing required to manage up to four Class B NACs with expansion options available for Class A fault-tolerant circuits, additional NACs, IDNet repeaters, and fiber optic communication. The board supports both 120 VAC primary power and 24 VDC battery backup to ensure uninterrupted operation. Designed for compatibility with Simplex Fire Alarm Control Panels, the 742-346 helps maintain system reliability and code compliance.
Key Features:
- Replacement CPU Board: Compatible with Simplex 4009-9201 IDNet NAC Power Extender Panels.
- Core Control Functions: Manages notification appliance circuits and system communication.
- Expansion Support: Works with optional adapter cards for Class A wiring, additional NACs, IDNet repeaters, and fiber optic receivers.
- Reliable Power Handling: Accepts 120 VAC input and 24 VDC battery backup with up to 8 amps output.
- Durable Construction: Built to maintain long-term reliability in life safety systems.
Compact Design: Standardized size for secure installation and service replacement.
Description
The Simplex 742-346 NAC Panel CPU Board is a replacement module designed for the Simplex 4009-9201 IDNet NAC Power Extender Panels. It restores core processing and communication functions, ensuring reliable supervision and operation of notification appliance circuits. This board helps maintain consistent fire alarm signaling performance in facilities where safety and uptime are critical.
Technical Specifications
Part Number | 742-346 |
Brand | Simplex |
Manufacturer | Johnson Controls |
Condition | New/Never Used Surplus |
Category | PLCs and Accessories |
Subcategory | PLC Expansion Modules |
Part Type | CPU Board, NAC Panel, Power Extender Panel |
Compatibility | Simplex 4009-9201 IDNet NAC Power Extender Panels |
Supported NACs | 4 Class B (expandable with option cards) |
AC Input | 120 VAC, 3 A, 60 Hz |
Battery Input | 24 VDC, 8 A |
Notification Appliance Power Output | 24 VDC, 8 A |
Optional Expansion Cards | - 4009-9808 Class A Adapter Card - 4009-9807 NAC Option Card - 4009-9809 IDNet Repeater Card - 4009-9810/9811 Fiber Optic Receiver |
Dimensions | 7.5 × 7.5 × 7.5 in |
Weight | 2 lbs |
Information About 742-346
The 742-346 is a Simplex NAC Extender CPU Board specifically engineered for the 4009-9201 IDNet NAC Power Extender Panels. It provides the control logic and processing required to manage up to four Class B NACs with expansion options available for Class A fault-tolerant circuits, additional NACs, IDNet repeaters, and fiber optic communication. The board supports both 120 VAC primary power and 24 VDC battery backup to ensure uninterrupted operation. Designed for compatibility with Simplex Fire Alarm Control Panels, the 742-346 helps maintain system reliability and code compliance.
Key Features:
- Replacement CPU Board: Compatible with Simplex 4009-9201 IDNet NAC Power Extender Panels.
- Core Control Functions: Manages notification appliance circuits and system communication.
- Expansion Support: Works with optional adapter cards for Class A wiring, additional NACs, IDNet repeaters, and fiber optic receivers.
- Reliable Power Handling: Accepts 120 VAC input and 24 VDC battery backup with up to 8 amps output.
- Durable Construction: Built to maintain long-term reliability in life safety systems.
Compact Design: Standardized size for secure installation and service replacement.

