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Fire-fighters communication system EN 81-72
The fire-fighters communication system enables a two-way communication between the car of the fire-fighters lift, the fire-fighters access level and the machine room of the lift. The system consists of three components:handset (handset/ exchange)fire-com (hands-free speakerphone/ fire-fighters speakerphone)free-com (…
Product information
Official manufacturer details
The fire-fighters communication system enables a two-way communication between the car of the fire-fighters lift, the fire-fighters access level and the machine room of the lift.
The system consists of three components:
- handset (handset/ exchange)
- fire-com (hands-free speakerphone/ fire-fighters speakerphone)
- free-com (hands-free speakerphone/ car speakerphone)
Fire-fighters operation is initiated via the fire-fighters switch.
Specifications
| Connectivity | |
| Lines | High, Low, GND, Line |
| Electrical data | |
| Power supply | 24 V DC (±15 %) |
| Current consumption (closed-circuit status) | approx. 40 mA |
| Operating voltage | min. 12 V |
| Current consumption (operating status) | approx. 150 mA |
| Current consumption (communication) | approx. 250 mA |
| Other | |
| Network extension (with 0.5 mm²) | max. 250 m |
| Network extension (with 1 mm²) | max. 500 m |
| Number of participants (handsets) | 1 |
| Number of participants (hands-free speakerphones) | 2 |
| Compliance | |
| EN 81-72 | X |
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