EQ3730DW（Det‑Tronics，Eagle Quantum Premier）
EQ3730DW is an 8-channel enhanced discrete I/O module (EDIO) from Det Tronics (a safety business under Honeywell), used for Eagle Quantum Premier (EQP) fire/gas safety systems, providing configurable switch input/output expansion and adapting to explosion-proof hazardous areas.

1、 Basic positioning
Model: EQ3730DW (EDIO=Enhanced Discrete I/O)
Brand: Det Tronics (owned by Honeywell)
System: Eagle Quantum Premier (EQP) Fire and Gas Monitoring and Control System
Channel: 8-channel configurable DI/DO (each channel independently set as input or output)
2、 Core parameters
electricity
Power supply: 24VDC (18-30VDC)
Maximum input current: 10.4A
Output voltage: 18-30VDC
Single channel current: both input and output are Class 2 current limiting
Environment and Explosion Protection
Temperature: -40 ℃ to+85 ℃
Explosion proof grade:
Class I, Div 2, Groups A/B/C/D（T4）
Class I, Zone 2, Group IIC（T4）
Weight: Approximately 650g
Installation: Rail type, EQP system backplane installation
3、 Key functions
8 configurable channels
Each channel is independently set as input (DI) or output (DO)
Input: smoke detector, temperature sensor, flame detector, manual alarm, pressure switch, etc
Output: Control of sirens, flashing lights, solenoid valves, fans, fire doors, etc
Supervised Line Supervision
Both input and output can be set as supervised (with tail resistors) or unsupervised
Breaks, short circuits, and grounding faults can be identified and reported by the EQP host
Definition of channel type
Input settings: fire alarm, malfunction, supervision, gas high/low alarm, etc
Output settings: alarm, release, linkage control, etc
status indicator
Each channel is equipped with independent LEDs for operation, alarm, and malfunction
Power, communication, and system fault indicator lights
system integration
Directly connected to EQP controller backplane
Support LON/SLC communication and real-time interaction with the host
Participate in system logic programming, linkage control, and event recording
4、 Typical applications
Explosion proof hazardous areas such as petrochemical, natural gas, pharmaceutical, semiconductor, etc
Factory fire/gas detection system expansion I/O
Linkage control: fire pump, sprinkler, ventilation, shut-off valve, sound and light alarm
Third party device dry contact access to EQP system
5、 Model Description
EQ3730: Basic EDIO module
EQ3730DW: Wide temperature range (-40 ℃~+85 ℃), coating reinforcement, enhanced anti-interference version