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8x8 and 16x16 VGA / HDTV Matrix Switch with Audio, RS232 & IP Control
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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.
Figure 4 – Typical balanced audio output connector
The balanced audio outputs are provided on detachable screw-terminals. Mating
connectors for all outputs are also provided.
2.3 Power input connection
The matrix has a built-in universal power supply. The AC input connector on the
rear of the matrix is an IEC320 / C6 and is always shipped with a North American
power cord (shown below). If you want to use the matrix in a country with
different plug type, you should purchase your own cable or adapter. The Matrix
supports both 110 V, 60 Hz and 220 V, 50 Hz power systems. There is a power
on indicator light on the front panel
Figure 5 – End of IEC320 / C6 power cord
2.4 Control Inputs
The matrix can be controlled from either RS-232 or through IP.
2.4.1 Matrix with RS-232 Control (no IP)
The AC1120A and AC1122A (without IP feature) actually have 2 separate and
independent RS-232 control ports.