View source for WK20 - Applications

=Amplified Calling Tone with answer in station=
[[Image:FIG WK 1 1.png|thumb|350px|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
<br/>

==Installation==
Wire the components as shown on figure 1.1.<br/>
Resistor R10 needs to be removed.

==Programming==

=Amplified Calling without answer=
==Amplifier constantly on==
[[Image:FIG WK 2 1.png|thumb|350px|Figure 2.1: Amplified Calling without answer. Amplifier constantly on]]
===Feature Description===
The feature enables amplified calling through a loudspeaker without having a station connected. <br/>
Calling is done by dialling the directory number of the loudspeaker. Speak after hearing the calling tone. Answer is ''not'' possible. Cancel the call with the C-key.

===Equipment List===
* Resistor 2.2kOhm
* Diode 1N4148
* Additional loudspeaker
* Amplifier Board WK20 1000614100
* 24VAC transformer

===Installation===
* Connect a resistor (2.2kOhm) in series with a diode (1N4148) between the c/d wires on a suitable place for the intended physical number.
* Mount the Amplifier Board WK20 in a suitable position near the loudspeaker.
* Strap point 1-7 and 2-3 on the Amplifier Board WK20
* Mount the locar power supply and connet it to the Amplifier Board WK20 point 8-9
* Run the wires according to figure 2.1

==Amplifier switched with the M-key==
[[Image:FIG WK 3 1.png|thumb|350px|Figure 3.1: Amplified Calling without answer. Amplifier switched with the M-key]]

===Feature Description===
The feature enables amplified calling through a loudspeaker without having a station connected.<br/>
Calling is done by dialling the directory number of the loudspeaker. Press the M-key to speak. Answer is ''no'' possible. Cancel the call with the C-key.

===Equipment List===
* Resistor 2.2kOhm
* Diode 1N4148
* Additional loudspeaker
* Amplifier Board WK20 1000614100
* Multirelay Board MRBD 1009970200
* 24VAC transformer
* [[PDB - Power Distribution Board|Power Distribution Board PDB 1009970100]] (This Board is only required in an E26 installation. E7 and E20 has +24VDC outputs.)

===Installation===
* Connect a resistor (2.2kOhm) in series with a diode (1N4148) between the c/d wires on a suitable place for the intended physical number.
* Mount the Amplifier Board WK20 and 24VAC transformer in a suitable position near the loudspeaker.
* Mount the Multirelay Board in close proximity to the exchange
* The PDB board mounts on the back of the E26, and feeds the MRBD with +24VDC. (In case of an E7 or E20 exchange, +24VDC can be taken directly from a dedicated output.)
* Run the wires according to figure 3.1

===Programming===
The amplifier can be switched on and off by an [[RCO - Set Remote Control Output|RCO command]] in the [[Event Handler]].

How to configure the relay operation:
* In [[Users_%26_Stations_%28AlphaPro%29|Users & Stations]] select the WK20 directory number in the list box, and press the button 'Events'. 'Insert' a new event with the following attributes:
[[Image:Image:RCO10.PNG|thumb|350px|Event to control the amplifier on/off]]
<br/>
{| 
|-
|width="100pt"|'''Event Owner''':
|width="300pt"|The WK20 directory number
|-
|'''Event type''': || [[Audio (Event Type)|1 - Audio]]
|-
|'''Subevent''': || 126 (Press 'Details' to select which types of audio. 126 means all types of audio)
|-
|'''When change to:''' || ON or OFF
|-
|'''When related to''': || (not used)
|-
|'''Action''': || RCO 10
|-
|}
RCO 10 is used as an example. Use the RCO number you have assigned to the WK20 physical connection.

<br style="clear:both;" />

=Amplified Calling with answer in separate microphone=
==Amplifier constantly on==
[[Image:FIG WK 4 1.png|thumb|350px|Figure 4.1: Amplified Calling with answer in separate microphone. Amplifier constantly on]]
2-45

==Amplifier switched with the M-key==
[[Image:FIG WK 5 1.png|thumb|350px|Figure 5.1: Amplified Calling with answer in separate microphone. Amplifier switched with M-key]]
2-47

=Amplified Calling with answer in separate loudspeaker=
==Amplifier switched with the M-key==
[[Image:FIG WK 6 1.png|thumb|350px|Figure 6.1: Amplified Calling with answer in separate loudspeaker. Amplifier switched with the M-key]]
2-49

=Amplified Calling with answer in called loudspeaker=
==Voice direction switched with M-key==
[[Image:FIG WK 7 1.png|thumb|350px|Figure 7.1: Amplified Calling with answer in called loudspeaker. Voice direction switched with M-key]]
2-51

==Amplifier and voice direction switched with the M-key==
[[Image:FIG WK 8 1.png|thumb|350px|Figure 8.1: Amplified calling with answer in called loudspeaker. Amplifier and voice direction switched with the M-key]]
2-53

=Amplified Calling with answer in separate loudspeaker in conjunction with a station=
==Amplifier switched with the M-key==
[[Image:FIG WK 9 1.png|thumb|350px|Figure 9.1: Amplified calling with answer in separate loudspeaker in conjunction with a station. Amplifier switched with the M-key.]]
2-55

=Amplified Calling with answer in called loudspeaker in conjunction with a station=
==Amplifier and voice direction switched with the M-key==
[[Image:FIG WK 10 1.png|thumb|350px|Figure 10.1: Amplified Calling with answer in called loudspeaker in conjunction with a station. Amplifier and voice direction switched with the M-key]]