WK20 - Applications

Amplified Calling Tone with answer in station

Figure 1.1: Amplified Calling Tone with answer in station

Feature Description

The audio signal of incoming calls can be amplified as an extra indication of the call. The feature require a station and a separate speaker for distribution of the amplified calling tone. It is not possible to answer the call through the separate speaker.

Operation

As a call is made to the station, the corresponding RCO triggers a relay which controls the amplifier, and makes it turn on. This is repeated for every calling tone if the station is in PRIVATE position.

Equipment List

• Loudspeaker
• Power Amplifier WK1000614100
• Multi Relay Board MRBD 1009970200

Installation

Wire the components as shown on figure 1.1.
Resistor R10 needs to be removed.

Amplified Calling without answer

Amplifier constantly on

Figure 2.1: Amplified Calling without answer. Amplifier constantly on

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Amplifier switched with the M-key

Figure 3.1: Amplified Calling without answer. Amplifier switched with the M-key

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Amplified Calling with answer in separate microphone

Amplifier constantly on

Figure 4.1: Amplified Calling with answer in separate microphone. Amplifier constantly on

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Amplifier switched with the M-key

Amplified Calling with answer in separate microphone. Amplifier switched with M-key

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Amplified Calling with answer in called Loudspeaker

Voice direction switched with M-key

Amplified Calling with answer in called loudspeaker. Voice direction switched with M-key

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Amplifier and voice direction switched with M-key

Amplified calling with answer in called loudspeaker. Amplifier and voice direction switched with the M-key

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