Specifications

Model AC1120A, AC1121A, AC1122A, AC1123A
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2.1.2 Audio Inputs on units with RJ45
Two types of RJ45 input configurations may be possible. Please contact Black
Box for availability and delivery information. The model number designates the
input either as RJ45 with power or RJ45 with Audio.
2.1.2.1 RJ45 input with Video and Power
The RJ45 with power units are compatible with Black Box AC504 and AC602
series of senders. The Matrix can also send power to one channel senders via the
Cat5 cable so that no external power supply would be needed.
2.1.2.2 RJ45 input with Video and Audio
The RJ45 with audio units are compatible with Black Box AC154A series of
senders. These senders transmit VGA video and audio to the matrix. The audio is
received as a balanced signal and is immune to noise pickup or ground noise.
2.2 Output Audio & Video Connections
The output connections are described below first for standard units (with HD15)
and then for those with RJ45 outputs.
Figure 3 – Standard matrix audio and video outputs
2.2.1 AV outputs on standard unit
The video output connectors on the basic unit are HD15 female. These are
compatible with PC’s VGA video signal (RGBHV). The Matrix is also compatible
with YPbPr HDTV signals with the use of HD15 to 3 RCA adapter cables.
The audio outputs of the matrix are balanced. So a + and a – are provided for each
side. There is also a ground connection available. If you are going to connect the
matrix output to a single-ended audio device (one with RCA or phono
connectors); then use the + of the left, + of the right, and ground. On the other
hand, if you will be connecting the output to professional audio gear it is best to
use the differential + and – (balanced) outputs of each side that offer immunity to
noise.