Extron electronic SW6 user manual Audio connections, Installation and Operartion, cont’d

Installation and Operartion, cont’d

L 1 R L 2 R L 3 R L 4 R L 5 R L 6 R L 1 R

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Figure 2-4 — SW6 VGA A rear panel (right half)

D	Audio Input connectors — Connect balanced
	or unbalanced stereo or mono audio inputs to
	these 3.5 mm, 5-pole captive screw connectors.
	Connectors are included with each switcher, but
	you must supply the audio cable. See "Audio connections" on
	the next page to wire the connectors.
E	Audio Output connector — Connect a balanced
	or unbalanced stereo or mono audio device to
	this 3.5 mm, 5-pole captive screw connector.
	Connectors are included with each switcher, but
	you must supply the audio cable. See "Audio connections" on
	the next page to wire the connectors.
F	Remote connector — Connect a host device, such as a
	computer, touch panel control, or RS-232 capable PDA to the
	switcher via this 9-pin D connector for serial RS-232 control
	(figure 2-5).

			Contact
	PIN	RS-232	Closure	Function
	1	—	In #1	Input #1
REMOTE	2	TX	—	Transmit data
	3	RX	—	Receive data
	4	—	In #2	Input #2
	5	Gnd	Gnd	Ground
	6	—	In #3	Input #3
	7	—	In #4	Input #4
	8	—	In #5	Input #5
	9	—	In #6	Input #6

Figure 2-5 — Remote connector

See chapter 3, “Remote Control”, for definitions of the SIS commands (serial commands to control the switcher via this connector) and for details on how to install and use the control software.

To select an input using contact closure control, momentarily tie an input's selection pin to ground.

NContact closure input selection cannot be performed when the auto switch mode is on.

Audio connections

See figure 2-6 to wire a connector for the appropriate input or output type and impedance level. High impedance is generally over 800 ohms.

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

	Unbalanced Stereo Input		Balanced Stereo Input
	(high impedance)		(high impedance)
Do not tin the wires!	Tip	L	Tip	L
	NO GROUND HERE.		Ring
	Sleeve(s)		Sleeve (s)
	Tip	R	Tip	R
	NO GROUND HERE.		Ring
	Unbalanced Stereo Output		Balanced Stereo Output

Figure 2-6 — Captive screw connector wiring for audio

CThe length of the exposed (stripped) portion of the copper wires is important. The ideal length is 3/16” (5 mm). Longer bare wires can short together. Shorter bare wires are not as secure in the captive screw connectors and could be pulled out.

CThe input audio connectors can easily be inadvertently plugged partially into one receptacle and partially into an adjacent receptacle. Ensure that the connector is plugged fully and only into the desired input or output.

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

Figure 2-7 — Typical audio connectors

2-6 SW6 VGA Audio • Installation and Operation SW6 VGA Audio • Installation and Operation 2-7