Line monitoring when operating with EOL resistor
Contact monitoring
Voltage monitoring
Individual monitoring of the two inputs
Maintains LSN loop functions in the event of wire interruption or short-circuit thanks to two integrated isolators
The FLM‑420‑RHV Relay High Voltage Interface Modules
are used to control the activation of external elements,
e. g. smoke dampers or fans (FAN function), via the Local
SecurityNetwork LSN.
Line monitoring when operating with EOL resistor
Contact monitoring
Voltage monitoring
Individual monitoring of the two inputs
Maintains LSN loop functions in the event of wire interruption or short-circuit thanks to two integrated isolators
The Surface-mounted Housing has two cable ducts on opposite sides:
- 2 x 2 pre-punched cable ducts for diameter up to 21 mm/to 34 mm (for conduits)
- 2 x 4 rubber bushes for inserting cables with diameters of up to 8 mm.
• In addition, there are cable ducts on the base of the surface-mounted housing:
- 1 x pre-punched cable ducts for diameter up to 21 mm (for conduit)
- 2 x 4 rubber bushes for inserting cables with diameters of up to 8 mm.