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Difference between revisions of "WK20 - 20W Power Amplifier"

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(Description)
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* Output level control.
 
* Output level control.
 
===Description===
 
===Description===
The schematics for the board are in Chapter 23 from page 273 onwards.
 
 
 
The board contains a power amplifier, a potentiometer for adjusting the output volume and an input for switching the amplifier on/off.
 
The board contains a power amplifier, a potentiometer for adjusting the output volume and an input for switching the amplifier on/off.
  
The symetrical input is matched to the output level on the subscriver board in the AlphaCom exchange.
+
The symetrical input is matched to the output level on the subscriber board in the AlphaCom exchange.
  
 
The amplifier may be constantly on, or switched on and off by the M-key on the calling station. It is recommended that power to the amplifier board is supplied from a separate class II transformer. <br\> In the AlphaCom exchange, brackets must be mounted on the board, in order to fasten to the mounting rail.
 
The amplifier may be constantly on, or switched on and off by the M-key on the calling station. It is recommended that power to the amplifier board is supplied from a separate class II transformer. <br\> In the AlphaCom exchange, brackets must be mounted on the board, in order to fasten to the mounting rail.

Revision as of 14:51, 6 August 2007

Power Amplier 1000614100

Features

  • Output for 1 amplified loudspeaker
  • Output level control.

Description

The board contains a power amplifier, a potentiometer for adjusting the output volume and an input for switching the amplifier on/off.

The symetrical input is matched to the output level on the subscriber board in the AlphaCom exchange.

The amplifier may be constantly on, or switched on and off by the M-key on the calling station. It is recommended that power to the amplifier board is supplied from a separate class II transformer. <br\> In the AlphaCom exchange, brackets must be mounted on the board, in order to fasten to the mounting rail.

Connectors and Switches

Figure 13-13: Connectors and switches on Power Amplifier

<br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\><br\>

Technical Specifications

Text Value
Order Number: 1000614100
Input signal level 1 V - 10 V
Input impedance 6kOhm
Output power<br\><br\> 20 W into 4ohm<br\>12 W into 8 ohm<br\>6 W into 20 ohm
Frequency range 140 - 20,000Hz
Max. amplification 10.5 dB
Recommended room temperature<br\> 0'C to +35'C<br\>+32'F to + 95'F
Humidity Range<br\>(non-condensing): 10% - 90% RH<br\>
Dimensions W x H x D<br\> 75mm x 84 mm x 40 mm<br\>2.9" x 3.3" x 1.6"

Table 13-5: Specifications Power Amplifier