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Heat smoke detector

ONOFF SYSTEM Product

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Heat, Smoke, and Fire Detection System

Utilizes Controller Area Network (CAN) bus to enhance monitoring system response and reliability

Digital relative humidity and temperature (RHT) sensor improves heat (temperature) measurement accuracy and response

Optimized KIT offers remote firmware (F/W) update function (CAN bus)

Up to 192 heat and smoke detectors can be connected to one data collection device
Utilizes LAN to establish an integrated monitoring system

Heat and smoke data storage
· All sensor information on heat and smoke detection are stored in a personal computer (PC) server database (DB)
Data collection and DB updating
· Server PC is connected to local data collection devices through Transmission Control Protocol/Internet Protocol (TCP/IP)
Status monitoring and history management
· Client software provided for monitoring and management of the entire system

Heat and smoke detectors

description
Item	ONOFF System	Competing Systems
Network communications	CAN bus	RS485
Smoke detection	Photoelectric	Photoelectric
Smoke detection sensitivity setting	Can Be set via server program * Level-1: > 5% * Level-2: > 15% * Level-3: > 25%	Not available
Heat (temperature) detection	Digital heat and humidity sensor	Thermistor
photo

Utilizes CAN bus to enhance monitoring system response and reliability
Digital RHT sensor improves heat (temperature) measurement accuracy and response
Optimized KIT offers remote F/W update function (CAN bus)

Data Collection Device

description
Item	ONOFF System	Competing Systems
Network communications	Heat and smoke detection connection: CAN bus	Heat and smoke detection connection: RS485
Network communications	Monitoring system: LAN	Monitoring System: LAN
Internal heat and humidity sensor	Digital RHT sensor / Board Liquid Crystal Display (LCD)	Not available
Number of connected heat and smoke detection devices	Up to 192EA	Up to 120EA
Frontal LCD screen on box	Up to 192EA (tri-color Light-Emitting Diode [LED])	Up to 120EA
Photo

Uses high-speed communications to increase the maximum number of connected devices
The relative decrease in the number of data collection devices required is expected to reduce the construction period and costs
Offers remote F/W update function through server programs (LAN bus)

LED status display

Smoke detection chamber

Carbon nanotubes
(CNT; power and signal)

Temperature and humidity detection

description
Item	Specification	Notes
Power Capacity	DC24V, 40mA
CPU	STM32F091CBT7 - ST ARM 32-bit Cortex-M0
External Interface	CAN bus
External Switch	Dip-Switch 6ch (CAN ID, 0~63)	Located behind the product
External Switch	Dip-Switch 1ch (CAN termination resistor use)	Located behind the product
External LED	1EA (3color LED)	Green, Red, Orange
Supported Temperature Range	-10℃ ~ 80℃
Sensor	Heat (temperature) / humidity sensor: digital RHT Sensor	Temperature detection range: -40℃ ~ 125℃
Sensor	Smoke sensor : Light beam sensor (photoelectric)	Humidity detection Range: 0%RH ~ 100%RH
Connector	Integrated power and signal 4Pin 2EA	specifications: LWD1140-04, CHD1140-04(Housing), Hanlim connector
Size / Weight	Φ86 x 25.5mm / 70g	Depends on Exposed Area
Panel fixture	Hook

description
Item	Specification	Notes
Power Capacity	DC24V, 7.5A (Max)
CPU	STM32F765IIT7 ARM Cortex-M7	Ethernet-enabled High-performance MCU
Switch	Rotary Switch 2EA	DAD device 열,단 setting
Switch	Rotary Switch 2EA	DAD device ID setting(0~255)
Interface	CAN 3ch	Sensor Interface
Interface	LAN	External Interface
Maximum Connections	192EA	192EA, Front LED indicates normal (green)/alarm (red) status
CAN cycle	Four times per second(0.25sec)	192EA Based on Interface
LAN cycle	One times per second(1sec)	DAD-PC(Rack Panel) Based on TCP/IP
Supported Temperature Range	-10℃ ~ 80℃
Internal Display	Mini OLED Display	Display of the top surface of the motherboard, relay temperature/humidity and other conditions
Cooling method	FAN ventilation	Automatic on/off operation based on internal temperature sensor
Connector	Board Internal 12EA	specifications LWD1140-04, CHD1140-04(Housing), Hanlim connector
Size / Weight	415mm x 270mm x 180mm / 8kg
Housing	Steel box	color : MUNSELL NO. 2.2Y 9.1/1.3 (In accordance with the order specification)