Introduction
Line & microphone audio receiver gateway
The APG20MK2 is an audio receiver gateway converting databus transmitted audio
signals to standard line and microphone level signals. The audio output of the APG20
can be fed to regular inputs on audio amplifiers, pre-amplifiers, mixers or many more.
In combination with the matching input modules (WLI and WMI) it offers a solutions
for two channel audio transmission (line & microphone) covering distances up to 300
meters over standard UTP CAT5E (or better) cabling. Distances up to 600 meters can
be achieved when applying additional power supplies.
Due to the differential bus input with increased voltage levels, the received signals are
insensitive for noise, interference and attenuation over the long transmission distance.
This offers the appropriate solution for high quality audio transmissions in long distance
applications while maintaining high quality audio reproduction.
The bus input carrying both audio channels, an RS485 data channel and 24 Volts
distribution to the transmitter end is implemented using an RJ45 connector. The audio
outputs are performed using dual RCA (line) and female XLR (microphone) connections.
The XLR output is accompanied with a switch allowing selection between a -40 dB
and 0 dB output level.
The signals carried on the RS-485 pair of the databus are linked to an RJ45 output
connection, allowing daisy chaining to the controlled equipment. A variety of optionally
available mounting brackets are allowing desk, closet or 19” equipment rack installation.
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