Extron Electronics MAV 62 - Manual (Page 8)

MAV 62 Matrix Switcher • Installation MAV 62 Matrix Switcher • Installation
Installation, cont’d
2-4
Composite video input connectors — Connect composite video
sources to these female BNC connectors.
The MAV 62 switchers do not alter the video signal in
any way. The signal output by the switcher is in the
same format as the input.
2
Connections for balanced and unbalanced audio inputs —
Each input has a 3.5 mm, 5-pole captive
screw connector for balanced or
unbalanced stereo audio input.
Connectors are included with each MAV
switcher, but you must supply the audio
cable. See figure 2-4 to wire a connector
for the appropriate input type and
impedance level. High impedance is
generally over 800 ohms.
CAUTION The captive screw connector can easily be
inadvertently plugged partially into one receptacle
and partially into an adjacent receptacle. This
misconnection could damage the audio output
circuits. Exercise care to ensure the captive screw
connector is plugged into the desired input or
output.
Unbalanced Input
Tip
Sleeve
Tip
Sleeve
Balanced Input
Tip
Ring
Sleeve (s)
Tip
Ring
Tip
Ring
Sleeve (s)
Tip
Ring
Balanced Input
(high impedance) (high impedance) (600 ohms)
600 ohms
600 ohms
Figure 2-4 — Captive screw connector wiring for
input
When making connections for the switcher from existing
audio cables, see figure 2-5. 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 2-4 and figure 2-6.
The audio level for each input can be individually set, via the
front panel or RS-232, to ensure that the level on the output does
not vary from input to input. See chapter 3, Operation, and
chapter 4, RS-232/Remote Control, for details.
2-5
Tip (+)
Sleeve ( )
RCA Connector
Sleeve ( )
Ring (R)
Tip (L)
3.5 mm Stereo Plug Connector
(unbalanced)
Figure 2-5 — Phono audio connectors
Signal output connections
3
S-video output connectors — Connect S-video displays to these
two 4-pin mini DIN connectors.
Composite video output connectors — Connect composite
video displays to these two female BNC connectors.
4 Connections for audio outputs — These 3.5 mm, 5-pole captive
screw connectors output the selected unamplified, line level
audio. Connect audio devices, such as an amplifier or powered
speakers. See figure 2-6 to properly wire an output connector.
Unbalanced Output
Tip
See caution
Sleeve
Tip
See caution
Balanced Output
Tip
Ring
Sleeve (s)
Tip
Ring
Figure 2-6 — Captive screw connector wiring for
audio output
CAUTION Connect the sleeve to ground (Gnd). Connecting
the sleeve to a negative (-) terminal will damage the
audio output circuits.
By default, the audio output follows the video switch. Audio
breakaway, commanded via the RS-232 link, allows the user to
select from any one of the audio input sources. See chapter 4,
RS-232/Remote Control for details on the RS-232 connection