Manufacturer: BOSCH
Type: Supervision Control Board
Model: LBB4443/00
Preferred Cable: Single twisted pair, 0.75 … 1.5 mm2
Maximum Length: 1 km (including branches, max. 300 m adjacent to other supervised loudspeaker cables)
Maximum Loop Resistance: 38 ohm
Maximum Inductance: 750 µH
Loudspeaker Voltage: 70 V, 100 V
Minimum Total Loudspeaker Impedance: 50 ohm at 70 kHz
Maximum Capacity: 300 nF
Air Pressure: 600 … 1100 hPa
Operating Temperature: -5 … +55 °C
Weight: 0.07 Kg