A inter- signalling relay unit which allows two Fire Alarm Systems to be interconnected without latch up. Each system requires a 24v DC Alarm signal input and a N/O signal output.
The unit is housed in a Sheet steel metal enclosure with entry knockouts located in both Top & bottom of the enclosure together with internal wall fixings.
The coils are both polarised and diode suppressed. Internal LED’s give indication of relay operation.
Terminals are also provided to connect Alternative end of Line monitoring resistors to the standard ( 5K6 R) fitted. A 470R Firing resistor is fitted for both outputs