Extron electronic 3200s manual A Matrix 6400 Audio Switcher Stereo backplane

Tip (+)

Ring (-)

Sleeve

Figure 2-4.C Examples of Audio Cable Connectors

Sleeve

Tip

Installation, cont’d

		BME
		-
		4
		+
A	ADDRESS
B
C	COMM.
D
E
A	MKP
B
C
D
E	ANAHEIM, CA
	MADE IN USA
	RS232/RS422
IN	COMM.
OUT	BME
AC POWER INPUT
FUSE: 250V 5.0A TT		POWER CORD BEFORE SERVICING
	5.0A MAX 50/60Hz
	100-240V	DISCONNECT

			INPUTS								OUTPUTS
IN	IN	IN	IN	IN	IN	IN	IN	OUT	OUT	OUT	OUT	OUT	OUT	OUT	OUT
1 - 8	9 - 16	17 - 24	25 - 32	33 - 40	41 - 48	49 - 56	57 - 64	1 - 8	9 - 16	17 - 24	25 - 32	33 - 40	41 - 48	49 - 56	57 - 64

Figure 2-4.A Matrix 6400 Audio Switcher - Stereo backplane

Figure 2-4.B shows three methods of wiring the stereo connectors, with input examples across the top, output examples below.

Unbalanced Input	Balanced Input	Balanced Input
(high impedance)	(high impedance)	(600 ohms)

Tip Sleeve

Tip Sleeve

L R AUDIO

Tip

Ring

Sleeve (s)

Tip

Ring

L R AUDIO

600 ohms

Tip

Ring

Sleeve (s)

Tip

Ring

600 ohms

L R AUDIO

Unbalanced Output	Balanced Output	Balanced Output
Tip	Tip	Tip
See caution	Ring	Ring
Sleeve	Sleeve (s)	Sleeve (s)
Tip	Tip	Tip
See caution	Ring	Ring

Figure 2-4.B Three ways to wire stereo input and output audio connectors (see cautions below).

When making connections for the Matrix 6400 Audio switcher from existing audio cables, see Figure 2-4.C. The round audio connectors are shown with the top one (tip and sleeve only) for

unbalanced audio and the bottom one (tip, ring and sleeve) for balanced audio. The "ring", "tip" and "sleeve" markings are also used on the captive screw

audio connector diagrams in Figure 2-4.C.

Together, these examples may be used as a guide for making audio cables.

CAUTION

Do not connect equipment that uses phantom power.

CAUTION

CAUTION

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

There is no physical way to prevent you from plugging a stereo audio connector partially in one input and partially in the adjacent input. This could cause circuit damage.

2-6 Matrix 3200/6400 Series • Installation