Extron Electronics SW6 VGA A - Manual (Page 9)

SW6 VGA Audio • Installation and Operation
Installation and Operartion, cont’d
2-6 SW6 VGA Audio • Installation and Operation 2-7
L 1 R L 2 R L 3 R L 4 R L 5 R L 6 R L 1 R
6 5 4
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).
REMOTE
PIN RS-232
Contact
Closure Function
1 — In #1 Input #1
Input #2
Input #3
Input #4
Input #5
Input #6
2 TX — Transmit data
3 RX — Receive data
4 — In #2
5 Gnd Gnd Ground
6 — In #3
7 — In #4
8 — In #5
9 — In #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.
N Contact 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.
L
R
Unbalanced Stereo Input Balanced Stereo Input
(high impedance) (high impedance)
Do not tin the wires!
L
R
Tip
Sleeve
Tip
Sleeve
Tip
Ring
Sleeve (s)
Tip
Ring
Balanced Stereo Output Unbalanced Stereo Output
Tip
Ring
Sleeve (s)
Tip
Ring
Sleeve(s)
L
R
L
R
Tip
Tip
NO GROUND HERE.
NO GROUND HERE.
Figure 2-6 — Captive screw connector wiring for
audio
C The 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.
C The 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 (+)
Sleeve ( ) Sleeve ( )
Ring (-)
Tip (+)
RCA Connector
3.5 mm Stereo Plug Connector
(balanced)
Figure 2-7 — Typical audio connectors