Extron electronic MPX Plus 866 A manual Audio inputs both input groups, Supply the audio cable

Audio inputs (both input groups)

H	Connections for balanced and unbalanced audio inputs — Each input has a
	5-pole, 3.5 mm captive screw connector for balanced or unbalanced stereo or
	mono audio input. Connectors are included with the switcher, but you must
	supply the audio cable.

See figure 2-3 to wire a connector for the appropriate input type. Use the supplied tie-wrap to strap the audio cable to the extended tail of the connector.

Tip	L	Tip	L
Sleeve		Ring
		Sleeve (s)
Tip	R	Tip	R
Sleeve		Ring

Do not tin the wires! Unbalanced Stereo Input Balanced Stereo Input

Figure 2-3 — Captive screw connector wiring for stereo audio inputs

CThe captive screw audio connector can easily be inadvertently plugged partially into one receptacle and partially into an adjacent receptacle. This misconnection could damage the audio circuits. Ensure that the connector is plugged fully and only into the desired input or output.

NThe length of exposed wires is critical. The ideal length is 3/16" (5 mm).

•If the stripped section of wire is longer than 3/16", the exposed wires may touch, causing a short circuit between them.

•If the stripped section of wire is shorter than 3/16", wires can be easily pulled out even if tightly fastened by the captive screws.

See figure 2-4 to identify the tip, ring, and sleeve when you are making connections for the switcher from existing audio cables. A mono audio connector consists of the tip and sleeve. A stereo audio connector consists of the tip, ring and sleeve. The ring, tip, and sleeve wires are also shown on the captive screw audio connector diagrams, figure 2-3, figure 2-5, and figure 2-6.

	Tip (+)
Tip (+)	Ring (-)
Sleeve ( )	Sleeve ( )
RCA Connector	3.5 mm Stereo Plug Connector
	(balanced)

Figure 2-4 — Typical audio connectors

PRELIMINARY

MPX Plus 866 A Media Presentation Matrix Switcher • Installation 2-5