AMX Optima SD Instruction Manual page 46

To attach stereo audio input and output wires:
1.
Unscrew the clamps on the audio connector.
2.
Insert the wires (FIG. 24) for wire placement for balanced and unbalanced audio) and firmly
re-tighten the clamps to make proper connections.
Balanced audio
FIG. 24
Balanced & unbalanced stereo audio wiring
Note: For stereo audio signals using twisted pair wire, connect the shield (ground) only at one end
(recommend receiving end) to minimize low frequency noise.
Wiring Sources & Destinations
Source and destination devices will require either balanced (differential) or unbalanced (single-ended)
connections. FIG. 25 illustrates the options for wiring between the sources and the input connectors and
between the output connectors and the destinations. More than one of these options can be used in the
same system. For balanced and unbalanced wiring details, see FIG. 24.
Source balanced
– wired balanced
FIG. 25
Options for source-to-Optima SD-to-destination 5-term wiring
Note: For instructions on replacing boards, see "Appendix C – Replacing I/O Boards" on page 67.
Optima SD Instruction Manual
Unbalanced audio
Optima SD Stereo Audio
Input Connectors
Source unbalanced
– wired unbalanced
Source balanced
– wired unbalanced
Stereo Audio Input/Output Boards
5-Term Wiring
Grey = Ground
Destination balanced
– wired unbalanced
Destination balanced
– wired balanced
Output Connectors
Destination unbalanced
– wired unbalanced
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