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RSA-2A1
Line
Level Audio Mixer — Two Inputs / One Output
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DESCRIPTION
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. |
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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 TeclCorder 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.
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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.
Federal
law 90-351 title 18, section 2511, sub section 2D, requires that at
least one participant in a recorded conversation be informed of the
recording. Check your state and local regulations for further
guidelines.
The
RSA-2A1 is warranted to be free from defects in materials or
workmanship for one year from the date of purchase. Damage to
products resulting from physical abuse or electrical misuse voids
this warranty. Out of warranty units will be repaired for a nominal
handling charge plus the cost of parts and transportation. If the
unit requires service, disconnect and return to the factory or place
of purchase for repair. |
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