In the field of life and property safety, the Fire Alarm Control Panel (FACP) is the core center of the fire protection system. The IntelliKnight 5700 addressable fire alarm control panel, launched by Silent Knight (a brand under Honeywell), is an ideal choice for commercial and industrial fire alarm systems due to its powerful addressing capability, flexible programming configuration, reliable release function, and UL 864 compliant safety design. This article will provide a comprehensive and in-depth professional interpretation of the system architecture, technical specifications, installation requirements, programming operations, release functions, and compatible devices of the 5700 control panel.
Product positioning and system overview
IntelliKnight 5700 is an addressable fire alarm control panel that integrates fire alarm control, remote alarm communication, and release system control. The core design concept is to provide flexible configuration options and reliable system performance, suitable for fire monitoring needs in small and medium-sized commercial buildings, industrial facilities, schools, hospitals, and other places.
1. Core hardware features
Single signal line circuit (SLC): supports 50 SK series detectors and 50 SK series modules, or 50 SD series detectors and modules (the two cannot be mixed)
Output power: Provides 2 sets of notification device circuits (NAC) with a total output power of 2.5A (power limited), programmable as notification output or auxiliary power supply
Built in communicator: Dual telephone line digital alarm communicator/transmitter (DACT), supports reporting events to the central station (by point or by area)
Relay output: 2 universal Form C programmable relays, 1 dedicated fault relay (Form C)
Scalability: Supports up to 8 5860 remote alarms, 8 intelligent power modules (5895XL or 5496 in any combination), 8 LED modules (5865-3/5865-4/5880)
User Management: Supports up to 20 user profiles, each with customizable access codes and permissions
2. Software Features
JumpStart: The system scans SLC loop devices, automatically identifies device types, and assigns default configurations
History: Non volatile event history storage, up to 1000 events
Output mode: Supports multiple notification output modes, including ANSI 3.41 three pulse time signal
Synchronization support: Built in notification device synchronization function, compatible with Faraday, Gentex, Wheelock, System Sensor and other brands
Advanced detector functions: automatic drift compensation, maintenance of alarm areas, point status that meets NFPA 72 calibration smoke testing requirements
System Architecture and Bus Technology
The 5700 control panel adopts a modular bus architecture, mainly including signal line circuits (SLC) and auxiliary buses (SBUS).
1. Signal Line Circuit (SLC)
The SLC loop is used to connect addressable detectors and modules. The system supports two protocols, and users must choose one in programming, which cannot be mixed:
SK protocol: supports 50 detectors and 50 modules (a total of 100 devices), with device addresses set through a rotary dip switch
SD protocol: Supports 50 detectors and modules (a total of 50 devices), with detector addresses set through panel programming and module addresses set through DIP switches
SLC wiring specifications:
SK equipment: maximum loop resistance of 40 Ω, maximum distance depends on wire specifications (maximum 1200 feet for 22AWG, maximum 7900 feet for 14AWG)
SD equipment: maximum loop resistance 50 Ω, 22AWG maximum 1500 feet, 14AWG maximum 10000 feet
T-tap wiring: The total length of all branches shall not exceed 40000 feet
Class A (Style 6/7) configuration: T-tap is not allowed, SLC input and output form a closed loop
2. Auxiliary Bus (SBUS)
SBUS is used to connect system expansion modules, including remote alarm (5860), LED alarm (5865-3/5865-4), LED driver module (5880), serial/parallel interface module (5824), intelligent power module (5496, 5895XL), etc.
SBUS wiring distance: The maximum total current is 1A, and the distance depends on the wire gauge and total current. For example, under a total current of 0.395A:
22AWG maximum 370 feet
18AWG maximum 938 feet
16AWG maximum 1493 feet
14AWG maximum 2362 feet

Technical specifications and environmental requirements
1. Electrical specifications
Project specifications
Input voltage 120 VAC, 60 Hz, 1.5A
Battery voltage 24 VDC (two 12V series connected), maximum charging current 3.1A
Battery capacity 7.0-35 AH (main cabinet can accommodate 7AH, larger capacity requires RBB battery cabinet)
Notification/auxiliary output 27.4 VDC, maximum 2.5A per channel, total output 2.5A
Relay contact 2.5A @ 27.4 VDC resistive load
SLC voltage 32 VDC, 100 mA
2. Environmental specifications
Working temperature: 0 ° C to 49 ° C (32 ° F to 120 ° F)
Recommended temperature: 15 ° C to 27 ° C (60 ° F to 80 ° F)
Humidity: 10% to 93% relative humidity, non condensing at 30 ° C (86 ° F)
Installation location: limited to indoor dry places only, avoid direct installation on exterior walls or basements
3. UL 864 Programming Restrictions