WK20 - 20W Power Amplifier
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Contents
Power Amplier 1000614100
Features
- Output for 1 amplified loudspeaker
- Output level control.
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 symetrical input is matched to the output level on the subscriver 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
<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
Installation
See the installation instruction for the application "Amplified Calling Through Loudspeaker without Answer Option" on page 178 and "Station with Amplified Calling and Ansver through the Station using Amplifier 6141" on page 180.