AMX AutoPatch Modula, Instruction Manual, Page: 115 / 191

Mono Audio Boards
109 Modula Instruction Manual
Attaching Wires
Important : If using Cat5 compatible mono audio boards – first see “Cat5 Video and Audio Boards with
TXs & RXs” starting on page 123 for special system setup information.
When attaching mono audio input and output wires, refer to the sheet labeled “AutoPatch Modula Connector
Guide” that ships with the system. The sheet shows you where to attach the wires on the
rear of each enclosure. Follow the sheet exactly; the system was programmed at the factory to
operate
only as indicated on the sheet. For multiple-enclosure systems, each enclosure will be numbered
(e.g., “Chassis 1 of 3”) on a label located on the left side (near the power receptacle).
Wiring Sources and Destinations
Source and destination devices will require either balanced (differential) or unbalanced (single-ended)
connections. FIG. 67 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. FIG. 68 shows details for balanced and unbalanced wiring.
To attach mono audio input and output wires:
1.
Unscrew the clamps on the audio connector.
2. Insert the wires and firmly re-tighten the clamps to make secure connections.
For balanced audio wire placement, see the left wiring diagram in FIG. 68.
For unbalanced audio wire placement, see the right wiring diagram in FIG. 68.
Note: For mono audio signals using twisted pair wire, connect the shield (ground) only at one end
(recommend receiving end) to minimize low frequency noise.
FIG. 67
Options for source-to-Modula-to-destination 3-Term wiring
FIG. 68
Balanced and unbalanced mono audio wiring
Balanced audio Unbalanced audio