Extron electronic System 7SC Outputs, Captive screw connector wiring for rear panel audio inputs

Installation, cont’d

3

Outputs

INPUTS

Audio inputs 1 through 6 — Each input has a 3.5 mm, 5-pole captive screw connector for balanced or unbalanced stereo audio input. Connectors are included with each System 7, but the user supplies the audio cable. See the following wiring diagrams to wire a connector for the appropriate input type and impedance level. High impedance is generally over 800 ohms.

						600 ohms
Tip	AUDIO	Tip	L R	AUDIO	Tip	L R	AUDIO
L R		Ring			Ring
Sleeve
		Sleeve (s)			Sleeve (s)
Tip		Tip			Tip
Sleeve		Ring			Ring
						600 ohms
Unbalanced Input			Balanced Input			Balanced Input
(high impedance)			(high impedance)			(600 ohms)

Captive screw connector wiring for rear panel audio inputs

4

OUTPUTS

RH/HV

R-Y

G/Y	V
VID

4

B/C

B-Y

AUDIO OUT

FIXED VARIABLE

L R L R

R	H/HV	R	H/HV	R
R-Y		R-Y
G/Y	V	G/Y	V
VID		VID
	5		6
B/C		B/C
B-Y		B-Y
SCP/AAP CONTROL			1 2 3 4 5 6 7
E D C B A E D C B A
1	2		CONTACT CLOSURE

GB

RGB

A B C D E A B C D E

RELAY 1 RELAY 2

H/HVV

RS-232

E D C B A A B C D E F G H I J

DISPLAY PWR	IR COMM	PROJ CONTROL
SENSOR

1 2 3

1Line level audio output (Fixed) — For unamplified audio output, connect an audio device, such as an audio recorder, VCR, or powered speakers, to this

3.5 mm, 5-pole captive screw connector. Follow the diagram below for correct wiring.

Unbalanced Output				Balanced Output
Tip	LR	AUDIO	Tip	LR	AUDIO
See Warning			Ring
Sleeve (s)			Sleeve (s)
Tip			Tip
See Warning			Ring

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

The gain can be set separately for each input channel so that there is no audible difference in level when switching between inputs. See chapter three, “Operation and Configuration”, for information on adjusting the audio output level via LCD menu and front panel controls. See chapter four, “Serial Communication”, for information on using the Simple Instruction Set (SIS) commands and the Windows-based control/configuration program to adjust audio levels and to set audio breakaway.

The Fixed audio output and the Variable audio output are simultaneously active, therefore two devices can be connected at the same time. Both outputs carry the same input’s audio signal.

2-6 System 7SC • Installation