Faraday 8709 Installation Instructions And Wiring

OPERATION The 8709 Isolator module isolates short circuits on an Addressable Device Circuit of a fire alarm control unit. The 8709 operates in both Style 4 (Class B) and Style 6 (Class A) circuits. When used in a Style 4 circuit, placing devices in several branches after 8709 modules, a short in the wiring within that branch is ...

Figure 3 8709 Wiring Diagram - Style 4 (Class B) Operation 1. All wiring must comply with national and local codes. 2. In order to provide adequate protection, it is recom- mended that you do not install more than 20 devices on a single 8709. 3. Wire size: 18 to 14 AWG. 4. The total wire resistance (both wires) between 8709s c ...