STEP
ATTENUATION
1
0
0 dB (Full Volume)
9
-3 dB
8
-6 dB
7
-9 dB
6
-
1
2 dB
5
-
1
5 dB
4
-
1
8 dB
3
-2
1
dB
2
-27 dB
1
-33 dB
0
Speaker Off
ATP10 and ATP35
Installation and Use Manual
Description
These
1
0-step plus “OFF” speaker attenuators allow the volume of a network of 25V or 70V speakers to be controlled
from a remote location. The ATP
1
0 attenuator can handle speaker loads of up to
1
0W (max.) and the ATP35 attenuator
can handle speaker loads of up to 35W (max.). The ATP
1
0 fits into a single gang electrical box and the ATP35 attenuator
fits into a double gang electrical box.
Each unit includes a bypass function for overriding the volume control knob setting when activated by 9V to 30V DC.
Applying 9V to 30V DC between pins labeled D+ and D- bypasses the volume control function and provides full volume
audio to the speakers.
© 2005 Bogen Communications, Inc.
All rights reserved.
Specifications subject to change without notice.
54-2149-01D 0805
Speaker
+
+
+
_
_
_
Power Supply
9V - 30V DC
+
_
Amplifier
ATP10 (or ATP35)
Customer Supplied
Contact Closure
SPEAKER
OUTPUTS
Rear
View
Pin Connections
Attenuators with Bypass
for 25V/70V Speaker Line
S+
Speaker Load Hot
S-
Speaker Load COM
A+
Amp Hot
A-
Amp COM
D+
+9V to 30V DC @ 25mA
D-
Gnd DC
Attenuator Wiring
Attenuator
Settings
ATP10 ATP35
