A8 Digital Duplex Intercom
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A8 digital duplex weatherproof intercom station is used as a
subscriber's device in DCN intercom systems. Depending on the
configuration and software installed on the central unit the device
enables automatic connection with all kinds of communication systems
and subscribers' devices. A8 duplex intercom station is designed for
outdoor use in the environment with high level of electric interfering,
humidity, noise, high dust and smoke level, in atmosphere with
aggressive gases and chemical vapors, low/high temperature.
To increase the number of subscribers' connections it is possible to
connect a 28-keys expansion box to the A8 digital intercom station.

Equipment Functions:
- calls via telephone receiver;
- calls via in-built microphone and speaker;
- connection of an extra amplifier, external amplifier and external PA device;
- use of offset microphone;
- call indication, call storage via LEDs under each button;
- automatic connection of subscribers;
- PC use for programming.
Technical Data
Parameter
| Data | Operating voltage
| -48 V | | Operating voltage rate | -72 V… -36 V | | Max. quiescent current | 40 mA | AF bandwidth
| 300-6800 Hz | | Communication interface | U | In-built amplifier output power
| 2 W | Protection class against foreign substances and water
| IP 65 | Enclosure dimensions (L x W x D)
| 285x240x84,5 mm
| | Operating temperature rate | -40…+50 ºC | Max. weight
| 3.5 kg |
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