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2-5MAV Series Switchers • Installation
Audio input and output connections (audio models only)
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. Ensure that the
captive screw connector is plugged into the desired input or output.
4
Audio input connections
MAV 128 RCA — Each input has a pair (left and right) of RCA connectors.
MAV 168/1616 — 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 Series switcher, but you must supply
the audio cable. See figure 2-6 to wire a connector for the
appropriate input type and impedance level. High impedance is
generally over 800 ohms.
When making connections for the MAV Series Switcher
from existing audio cables, see figure 2-7. 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 2-6 and figure 2-8.
The audio level for each input can be individually set, via the front panel
or RS-232/RS-422, to ensure that the level on the output does not vary
from input to input. See chapter 3, Operation, chapter 4, Programmer’s
Guide, and chapter 5, Matrix Software for details.
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 2-6 — Captive screw connector wiring for audio inputs
Tip (+)
Sleeve ( )
Sleeve ( )
Ring (
-
)
Tip (+)
RCA Connector
3.5 mm Stereo Plug Connector
(balanced)
Figure 2-7 — Typical audio connectors
5
Audio output connectors
MAV 128 RCA — Each output has a pair (left and right) of RCA connectors.
MAV 168/1616 — These 3.5 mm, 5-pole captive screw connectors output the
selected unamplified, line level audio. Connect audio devices, such as an
audio amplifier or powered speakers. See figure 2-8 to properly wire an
output connector.