Extron electronic 450 Plus, MAV Plus 4 - Captive screw connector wiring for mono audio inputs

See figure 2-4 to wire a connector on a mono audio BME.

Tip

0.2” (5 mm) max. Ring

Do not tin the wires! Sleeves

Figure 2-4 — Captive screw connector wiring for mono audio inputs

NThe length of exposed wires is critical. The ideal length is 0.2” (5 mm).

•If the stripped section of wire is longer than 0.2”, the exposed wires may touch, causing a short circuit between them.

•If the stripped section of wire is shorter than 0.2”, wires can be easily pulled out even if tightly fastened by the captive screws.

NSee figure 2-5 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 2-4, figure 2-6, and figure 2-7.

Tip (+)

Sleeve ()

Tip (+)

Ring (-)

Sleeve ()

RCA Connector	3.5 mm Stereo Plug Connector
	(balanced)

Figure 2-5 — Typical audio connectors

The audio level for each input can be individually set via the front panel or Ethernet or RS-232/RS-422 control to ensure that the level on the output does not vary from input to input. See chapter 3, Operation, chapter 4, SIS Programming and Control, chapter 5, Matrix Software, and chapter 6, HTML Operation for details.

e Connections for balanced and unbalanced audio outputs — These 3.5 mm, 5-pole (stereo audio BMEs) or 3-pole (mono audio BMEs) captive screw connectors output the selected unamplified, line level audio. Connect audio devices, such as an audio amplifier or powered speakers.

See figure 2-6 to properly wire an output connector for the stereo audio BME.

Tip	L	Left	Tip	L	Left
NO GROUND HERE.			Ring
Sleeve(s)
Tip	R	Right	Tip	R	Right
NO GROUND HERE.			Ring

0.2” (5 mm) max. Unbalanced Stereo Output Balanced Stereo Output

Do not tin the wires!

Figure 2-6 — Captive screw connector wiring for stereo audio output

CConnect the sleeve to ground (Gnd). Connecting the sleeve to a negative (-) terminal will damage the audio output circuits.

CrossPoint 450 Plus and MAV Plus Switchers • Installation 2-5