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RSA-2A1
Line Level Audio Mixer
Two Inputs/OneOutput
The RSA-2A1 is used in certain applications to combine audio from two line level
sources, such as remote controlled 2-way radio circuits, into a single audio output.
Normally, this mixed audio output would be connected to the input of a logging
recorder so that both sources can be recorded on a single recording channel.
It provides balanced line-inputs, transformer isolation, capacitive coupling, and RF
bypass. The high impedance input circuits permit connection to balanced and
unbalanced audio sources, with minimal loading. Each channel has an independent
audio level adjustment. It is powered by an external 117 volt AC power adapter with 5
volts DC, 1000 ma output. 3"L x 2"W x 1"H.
Installation
The input cables (normally supplied with six foot telephone style cables terminated
in modular RJ-11 plugs) should be connected to the source of audio to be
monitored. If the modular plug is not used, connect the red wire in the cable to one
side of the circuit and the green wire to the other side of the circuit. Polarity is not
important.
Connect a cable from the audio output jack to the audio input of your recording
equipment. The audio is on the center two RJ-22 jack connections. An output cable
is not supplied with the RSA-2A1. With Total Recall and TeleCorder Voice Loggers
this cable would plug into one of the RJ-11 jacks on the back of the recorder.
There are two small screwdriver adjustable level controls accessible through holes
in the case of your RSA-2A1, one for each audio source. Adjust counter-clockwise to
increase, clockwise to decrease the output level as needed.
If the coupler was purchased as part of a custom wired recording system, the input
and/or output cable terminations may have been changed to match your specific
application.
NOTES
If you are using the RSA-2A1 with voltage controlled telephone circuits it will not pass
the DC voltages to your recorder. It was designed for use with two-way radio circuits
where receive and transmit audio are on independent radio loops. For automatic
recording, your recorder must be set for voice activated recording.
Line Level Audio Mixer
Two Inputs/OneOutput
The RSA-2A1 is used in certain applications to combine audio from two line level
sources, such as remote controlled 2-way radio circuits, into a single audio output.
Normally, this mixed audio output would be connected to the input of a logging
recorder so that both sources can be recorded on a single recording channel.
It provides balanced line-inputs, transformer isolation, capacitive coupling, and RF
bypass. The high impedance input circuits permit connection to balanced and
unbalanced audio sources, with minimal loading. Each channel has an independent
audio level adjustment. It is powered by an external 117 volt AC power adapter with 5
volts DC, 1000 ma output. 3"L x 2"W x 1"H.
Installation
The input cables (normally supplied with six foot telephone style cables terminated
in modular RJ-11 plugs) should be connected to the source of audio to be
monitored. If the modular plug is not used, connect the red wire in the cable to one
side of the circuit and the green wire to the other side of the circuit. Polarity is not
important.
Connect a cable from the audio output jack to the audio input of your recording
equipment. The audio is on the center two RJ-22 jack connections. An output cable
is not supplied with the RSA-2A1. With Total Recall and TeleCorder Voice Loggers
this cable would plug into one of the RJ-11 jacks on the back of the recorder.
There are two small screwdriver adjustable level controls accessible through holes
in the case of your RSA-2A1, one for each audio source. Adjust counter-clockwise to
increase, clockwise to decrease the output level as needed.
If the coupler was purchased as part of a custom wired recording system, the input
and/or output cable terminations may have been changed to match your specific
application.
NOTES
If you are using the RSA-2A1 with voltage controlled telephone circuits it will not pass
the DC voltages to your recorder. It was designed for use with two-way radio circuits
where receive and transmit audio are on independent radio loops. For automatic
recording, your recorder must be set for voice activated recording.
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