User Guide Manual

MMX 42/62 Series Matrix Switchers • Installation
Installation, cont’d
2-8
MMX 42/62 Series Matrix Switchers • Installation
2-9
Video signal input connections
N
The MMX switchers do not alter the video signal in any
way. The signal output by the switcher is in the same
format as the input.
b
Composite video input connectors — Connect composite video
sources to these female BNC connectors.
c
S-video input connectors — Connect S-video sources to these
4-pin mini DIN connectors.
Video signal output connections
d
Composite video output connectors — Connect composite
video displays to these two female BNC connectors.
e
S-video output connectors — Connect S-video displays to these
two 4-pin mini DIN connectors.
Audio signal input connections
f
3.5 mm, 5-pole captive screw connectors — Connect balanced
and unbalanced stereo audio inputs to these connectors
using captive screw connectors which are included with each
MMX VA and SVA (non RCA) switcher (you must supply the
audio cable). Figure 2-9 shows how to wire a connector for the
appropriate input type and impedance level.
L R
Unbalanced Input
Balanced Input
(high impedance) (high impedance)
Ring
Sleeve (s)
Tip
Sleeve
Tip
Sleeve
Tip
Tip
Ring
3/16”
(5 mm) Max.
Do not tin the wires!
Figure 2-9 — Captive screw connector wiring for input
C
When making connections for the switcher from
existing audio cables, see figure 2-10. A mono audio
connector consists of the tip and sleeve. A stereo
audio connector consists of the tip, ring and sleeve.
Tip (L) Sleeve (Gnd)
Tip (L)
Ring (R)
Sleeve (Gnd)
Tip Sleeve
Unbalanced mono Unbalanced stereo
Tip (signal)
Sleeve (Gnd)
Figure 2-10 — Phono audio connectors

The audio level for each input can be individually set, via
RS-232 link, to ensure that the level on the output does not vary
from input to input. See chapter 4, "Remote Control", for details.
g
RCA audio connectors — Connect unbalanced stereo audio
inputs to these RCA connectors. See figure 2-11 for an
illustration on how to wire the RCA connector.
Tip (+)
Sleeve ( )
Sleeve (Gnd )
Right Channel
(Red Jacket)
Left Channel
(White Jacket)
Tip (Signal)
Figure 2-11 — RCA connector wiring
Audio signal output connections
h
3.5 mm, 5-pole captive screw connectors — Connect balanced
and/or unbalanced stereo audio outputs to these sockets using
connectors which are included with each MMX SVA switcher
(you must supply the audio cable). See figure 2-12 for an
illustration on how to wire a connector for the appropriate
output type.
CAUTION For unbalanced audio, connect the sleeve(s)
to the ground contact. DO NOT connect
the sleeve(s) to the negative (-) contacts.
Unbalanced Output
Balanced Output
L R
Ring
Tip
Sleeve(s)
Tip
Ring
Sleeve(s)
Tip
Tip
NO GROUND HERE.
NO GROUND HERE.
3/16”
(5 mm) Max.
Do not tin the wires!
Figure 2-12 — Captive screw connector wiring for
audio output
i
RCA audio connectors — Connect unbalanced stereo audio
outputs to these RCA connectors. See figure 2-11 for an
illustration on how to wire the RCA connector.

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,
"Remote Control" for details on the RS-232 connection.