Redback A 4482, Operating Instructions, Page: 2 / 4

REDBACK ®
Page 2
A 4485 Connection Details
The design allows for several different switching configurations.
Option 1: Individual Zone Amplifier Mic Level
Using the microphone signal “MIC OUT” received from the paging console. Take this low level balanced
signal and feed it into the “AUDIO IN” on the control PCB. When the desired zone is operated, this signal
then appears at “OUT N/O” contacts of that zone. This allows a seperate amplifier for each zone.
Option 2: Individual Zone Amplifier Line Level
Using the line level signal “LINE OUT” received from the paging console. Take this low level balanced
signal and feed it into the “AUDIO IN” on the control PCB. When the desired zone is operated, this signal
then appears at “OUT N/O” contacts of that zone. This allows a seperate amplifier for each zone.
Option 3: One Zone Amplifier
Using either the “MIC OUT” (3mV balanced microphone signal) or the “LINE OUT” (1V balanced line level
signal).
Feed this into the zone amplifier. The output of this amplifier is then fed into the “AUDIO IN”
terminals of the control PCB. When the desired zone is operated from the desk microphone console, the
amplifier output appears at “OUT N/O” contacts of that zone.
A 4482 Connection Details
See “A 4482 typical connection” over the page for full connection information. Output from converter box to
local amplifier may be microphone level or line level as required.