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Amplifier AF 20D
Digital 20 watt amplifier with polycarbonate housing for connection to an Intercom
Server. Output power 1 x 20 watt at 4 ohm loudspeaker or 2 x 10 watt at 8 ohm loud-
speakers.
Extent of supply
Amplifier
Wallmount Kit
Connection
Cable entry for
expansion module
Power
+
–
Relay
24 VDC
Intercom
Server
Connection of loudspeaker
+
–
+
–
+
–
+
–
+
LS
LS
LS
LS
LS
16 Ω
4 Ω
8 Ω
8 Ω
16 Ω
Settings
The volume control is carried out via the potentiometer "Volume" and via CCT 800
at Subscriber > Audio - Features
LED status indication
LED "Power"
Permanent green: power supply existent
Green blinking: Power supply over Intercom Server (A,B)
Permanent red: short-circuit at the loudspeaker
LED "Level"
LED red: too much amplification (Clipping)
LED green / orange: amplification ok
2
open
amplifier
1
+
-
+
-
LS
LS
Loudspeaker
–
+
–
LS
16 Ω
16 Ω
Mounting
It is possible to mount the Amplifier in two different ways:
Wallmount Kit (in extent of supply)
2
3
1
Mounting with top hat rail clamp ET 901-HSH35 (not in extent of supply)
-> see Short Reference ET 901-HSH35
Measurements
Measurements in mm (inch), not scale!
158.5 (6.24)
For current software and documentation please visit:
www.software-manuals.com
Attention
Observe the precautions for handling of electrostatic sensitive devices!
The device may be only installed by authorised engineers.
Manufacturer's reference
This equipment fulfils the requirements of the EU standard 2014/30/EU.
Therefore this equipment is CE-labelled.
Please keep this description in safe custody!
Type: D-BZ-AF20D, Version: 1.2/0811
1
Install screws and dowels
2
Break out the mounting opening
on the back side of the housing
and hook onto the screws
3
Fix box by moving to
the left, right or down
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