Extron electronic MDA3, MDA 3A RCA, MDA 3SV DUAL User Manual
MDA 3 Series • User Guide
This guide describes the installation and operation of the Extron MDA 3 Series Mini Distribution Ampliers (MDA).
FCC Class A Notice
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part15 of the
FCC rules. The ClassA limits provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment
in a residential area is likely to cause interference. This interference must be corrected at the expense of the user.
NOTE: For more information on safety guidelines, regulatory compliances, EMI/EMF compatibility, accessibility, and related topics,
see the “Extron Safety and Regulatory Compliance Guide” on the Extron website.
Specifications Availability
Product specications are available on the Extron website, www.extron.com.
Introduction
The Extron MDA 3 Series are a family of eight one-input, three-output, video and audio distribution ampliers. The MDA series
distribution ampliers (DAs) split one composite video or S-video input and/or audio input for output to multiple destinations with
no loss of signal quality. The MDA are members of the Extron line of basic distribution ampliers, switchers, and associated video
accessories.
The MDAs distribute composite video, S-video (luminance (Y) and chrominance (C)), and/or balanced or unbalanced audio on
captive screw connectors, or unbalanced audio on RCA connectors, in the following combinations:
Distribution Amplifier
MDA 3SV
MDA 3SVA
MDA 3SV Dual
MDA 3V
MDA 3AV
MDA 3V Dual
MDA 3A
MDA 3A RCA
The MDAs ship with external desktop 12 V power supplies that accept 100 to 240 VAC, 50 Hz or 60 Hz input.
S-Video Composite Video
2
2
Screw Connectors)
Audio (Captive
Audio (RCA
Connectors)
1
Connections, Controls, and Indicator
MDA 3AV
POWER
12V
.34A MAX
LRLRLRLR
INPUT
OUTPUTS
1
2
3
BAL
1 2 3
UNBAL
1
I
N
O
U
T
2
3
MDA 3SVA
POWER
12V
.5A MAX
LRLRLRLR
INPUT
OUTPUTS
1
2
3
BAL
1 2 3
UNBAL
1
2
3
INPUT
OUTPUTS
MDA 3V
DUAL
POWER
12V
.5A MAX
1
2
3
INPUT
OUTPUTS
1
2
3
A
B
MDA 3V Dual,
Rear Panel
MDA 3AV,
Rear Panel
MDA 3SVA,
Rear Panel
1 2
3 4 3 4
58 6 7
5 38 86 47
Unbalanced Stereo Input
Balanced Stereo Input
Do not tin the wires!
Tip
Ring
Tip
Ring
Sleeves
Tip
Sleeve
Sleeve
Tip
LR
LR
inch
Figure 1 show all of the combinations of connectors that you may encounter with your MDA.
Figure 1. MDA 3 Series Front and Rear Panels
S-video (MDA 3SV and MDA 3SVA)
a Input connectors — Connect an S-video input to this four-pin mini DIN connector.
b Out connector or Outputs (1 through 3) connectors — Connect up to three S-video devices to these four-pin mini DIN
connectors.
Composite Video (MDA 3V, MDA 3AV, and MDA 3V Dual)
c In connector or Input connector — Connect a composite video input to this BNC connector. On the Dual model, Input A and
Input B are completely separate inputs to two separate distribution amplifiers.
d Out connector or Outputs (1 through 3) connectors — Connect up to three composite video devices to these BNC
connectors. On the Dual model, the A output signals are identical to the A input, and the B output signals are identical to the B
input.
Audio on captive screw connectors (MDA 3AV, MDA 3SVA, MDA 3A)
e Audio Input connector — Connect a balanced or unbalanced audio input to this 3.5 mm, five-pole captive screw connector.
Connectors are included, but you must supply the audio cable. See figure 2 to wire a connector for the appropriate input type
and impedance level. High impedance is generally over 800 ohms.
Figure 2. Captive Screw Input Connector Wiring
2MDA 3 Series • User Guide
Loading...