Tel:400 008 9119 Login  CN | EN


Two-wire, non-polar, strong anti-interference performance, maximum communication distance 3000m, The way of smoke entering the chamber from lower and side improves the alarm speed of the detector, which can respond to both white smoke and black smoke.
Smoke Detector
Product Features
•  SMT processing, embedded Crested Ibis chip.
•  Collect, store, analyze and determine data by itself. Automatic compensation for pollution accumulation reduces false alarms to the least.
•  Detect a variety of fires, sensitive to both white and black smokes.
•  Resists effect from electromagnetic interference, dust, temperature variation, erosion, and outside light.
•  Two-wire polarity-free loop.
•  Communication distance: 1500m.

Technical Data

ItemsTechnical Parameters
Working voltageDC18V-27Vmodulation type provided by the control panel
WiringSignal line: L1, L2
Working temperature-10~+50℃
Storage temperature-20~+55℃
Relative humidity≤95%(40±2℃)
Monitoring current≤0.3mA(24V)
Alarm current≤1mA(24V)
RF susceptibility (immunity)30V/M
IndicatorFlashes when in normal monitoring, steady on when alarms;
Addressing methodElectrical encoder
Address range1-200
Protective area60-80m2
Communication distance1500m
Applied standardGB 4715-2005 “Point Type Smoke Fire Detector”
Structure and Installation
1) Fix the base JBF-VB4301B on the embedded box with two M4 screws.
2) Use a special electronic encoder to set the address (1-200) for the detector.
3) Adopt ZR-RVS-2×1.5mmtwisted pair cable, and the two-wire bus connect to the terminals L1 and L2 regardless of polarity.
4) Mount the detector onto the base and tighten it clockwise. The installation should be done with gloves on to keep the detector clean.

Structure and installation dimensions:

Installation diagram 


•  The installation should be carried out with gloves on to keep the detector clean.
•  After installation, do not remove the dust cover if the environment is not settled.
•  Conduct smoke test regularly, ideally every six months.