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Two-wire, non-polar, red, suitable for home alarm control panel loop, maximum communication distance 1500m
Alarm Button
The alarm button and household detector series, is applied to home fire alarm system using two-wire loop, connecting with JB-QB-JBF5020 and JB-QB-JBF5021 home fire alarm control panel. Application design follows national standard GB 22370-2008 Fire alarm and safety system for household.
Applicable to household area, small supermarkets, small bars, rental houses and other small places.

Product Features
•   Built-in microprocessor, performance is stable.
•   Adopt SMT process, high reliability, good consistency.
•   Two-bus system without polarity requirements, and the communication distance is up to the 1000m at a very low power consumption.
•   Electronic addressing with specialized device.
•   Simple operation. Press the operating panel by hand to report fire alarm to the control panel.
•   The alarm button can be installed in the embedded box to save space, or installed unfolded (no embedded box).
•   J-SAP-JBF4124 is white in color.
•   J-SAP-JBF4125 is red in color.

Technical Data
Working voltageDC 19-28V
Monitoring current≤0.35mA (24V)
Alarm current≤1.5mA (24V)
Addressing methodElectronic addressing
Address range1-16
IndicatorsGreen light flashes in monitoring state, constant on (red light) when in alarm state.
Operating temperature0—+40℃
Storage temperature-20—+50℃
Relative Humidity ≤95%RH (40±2℃)
Dimensions90mm × 86mm × 34mm (L × W × H)
Weight69g (without base), 98g (with base)
WiresTwo-wire bus, non-polarity

Structure and Installation
Unfolded JBF4124 appearance and installation dimensions

Figure 1 JBF4124 appearance and dimensions (with base)

Unfolded JBF4125 appearance and installation dimensions

Figure 2 JBF4125 appearance and dimensions (with base)

Folded JBF4124 appearance and installation dimensions

Figure 3 JBF4124 appearance and dimensions (without base)

Folded JBF4125 appearance and installation dimensions

Figure 4 JBF4125 appearance and dimensions (without base)

Folded installation: after wiring is completed, put the product into the embedded box, and connect it with the embedded box with the installation screw in the package.
Note: when the product is installed inside the embedded box, the minimum size of the external outline of the embedded box is 83×83, and the embedded box smaller than this size does not support folded installation.

Unfolded installation: if the product needs unfolded installation, you need to order another base JBF-VB4502A for use. When installing, knock out the leak hole of the mounting base, and pass the return route through the leaking hole. After fixing the mounting base to the wall, wire the product, and put the product onto the JBF-VB4502A base.

                                                                 Figure 5 folded installation                 Figure 6 unfolded installation
•   Alarm button uses RVS2×1.5mm2 twisted pair to connect with home fire alarm control panel
•   Use the encoder to write the corresponding address (1-16)
Figure 7 Terminals

Conduct alarm test regularly, every six months recommended.