AMX Precis SD Wiring Audio Connectors, Wiring Sources & Destinations, Attaching Wires

Installation & Setup

Wiring Audio Connectors

The stereo audio connectors for the Precis SD are pluggable 5-position terminal block that can be wired for balanced (differential) or unbalanced (single-ended) audio (FIG. 14).

Wiring Sources & Destinations

Source and destination devices require either balanced (differential) or unbalanced (single-ended) connections. FIG. 13 illustrates options for wiring between sources and input connectors and between output connectors and the destinations. More than one option can be use in the same system. For balanced and unbalanced wiring details, see FIG. 14.

FIG. 13 Options for source-to-Precis SD-to-destination 5-Term wiring

Attaching Wires

FIG. 14 Balanced audio Unbalanced audio

To attach stereo 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. 14. For unbalanced audio wire placement, see the right wiring diagram in FIG. 14.

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.

For stereo audio signal specifications, see “Signal Specifications” on page 34.

26 Precis SD Instruction Manual