The Silent Knight 5220 module is a fire direct connect module for municipal alarm reporting. It links a compatible Silent Knight fire alarm control panel to a city master box. Alternatively, it provides a polarity-reversal output to a remote station receiving unit. Either way, it gives the panel an NFPA 72-compliant path for off-premises alarm transmission.
Operation is simple and fail-safe. During an alarm, the 5220 reverses the polarity of its output current. During a trouble condition, it removes current entirely. Consequently, the receiving end can distinguish alarms from troubles. The circuit is supervised for opens and ground faults. However, note one limit: the 5220 cannot be used for sprinkler supervisory service.
Installing the Silent Knight 5220 Module
Honeywell’s SK-5208 manual documents the 5220 in detail. The module requires four wiring connections to the panel. It mounts through a cabinet knockout using a short conduit run, not exceeding 20 feet. For city box service, the combined coil and wire resistance must not exceed 30 ohms. Then a panel NAC is programmed as “direct connect” to drive the module. Also, the remote indication cannot reset until the panel condition clears and the panel resets.
Specifications
- Function: city (master) box connection or NFPA 72 polarity-reversal reporting
- Alarm: output current reverses polarity; Trouble: current removed
- Maximum voltage: 27.3 VDC
- City box loop: combined coil and wire resistance 30 ohms maximum
- Connection: four wires to the panel; conduit run 20 feet maximum
- Supervision: monitored for opens and ground faults
- Not for sprinkler supervisory applications
- Documented with the Silent Knight SK-5208 fire control/communicator
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1 lbs |
|---|---|
| Dimensions | 9 × 6 × 2 in |
| Condition | New |
| Manufacturers | Silent Knight |
| Part Type | Module |
