S1209F Wiring Diagram. Web s1209 / s1209f tandem interconnect wiring diagram limitations: Alarms may be connected together. Wiring diagrams from dr.autodata.jp Web s1209 / s1209f tandem interconnect wiring diagram limitations: Gentex s1209f installation guide page: Web tandem wiring diagram relay model wiring diagram architect & engineering specifications the photoelectric smoke alarm shall be a gentex […]