Extron Electronics MDA 4V SDI User Guide - Manual (Page 7)

MDA 4V SDI User's Guide • Introduction
MDA 4V SDI User's Guide
6 MDA 4V SDI User's Guide • Introduction 7
8. For projector mounting, secure the MDA to a projector
mount or other surface by inserting the mounting bolt
through the bracket’s slotted hole.
Connections and Indicator
MDA 4V SDI
POWER
12V
.5A MAX
1
2
3
4
SDI INPUT
SDI OUTPUTS
DISTRIBUTION AMPLIFIER
1 3
4
2
Figure 6 — MDA 4V SDI front and rear panels
a
SDI Input connector — Connect an SDI input to this BNC
connector.
b
SDI Outputs (1 through 4) connectors — Connect up to four
SDI devices to these BNC connectors. The MDA outputs
re-clocked SDI outputs.
C Voltage polarity is critical when you are connecting
the power supply. Applying power with incorrect
voltage polarity could damage the power supply and
the MDA. Identify the power cord negative lead by
the ridges on the side of the cord.
c
Power connector — Plug the external 12 VDC power supply
into this 2-pole captive screw connector. The power supply
is included with the unit. Figure 7 shows how to wire the
connector.
C Power supply voltage polarity is critical. Incorrect
voltage polarity can damage the power supply and
the transmitter or receiver. Identify the power cord
negative lead by the ridges on the side of the cord
(fi gure 7).
Power Supply
Output Cord
Orange Captive Screw
Connector
0.2” (5 mm) MAX
SECTION A–A
Ridges
Smooth
A A
Tie Wrap
Figure 7 — Power connector wiring
To verify the polarity before connection, plug in the power
supply with no load and check the output with a voltmeter.
W The two power cord wires must be kept separate
while the power supply is plugged in. Remove
power before wiring.
C The length of the exposed (stripped) copper wires
is important. The ideal length is 0.2" (5 mm).
Longer bare wires can short together. Shorter wires
are not as secure in the direct insertion connectors
and could be pulled out.
Use the supplied tie-wrap to strap the power cord to the
extended tail of the connector.
N Your MDA may have shipped with a blue captive screw
connector. This blue connector can be plugged into
either a blue or an orange power receptacle.
The blue connector does not have the extended tail or the
included tie-wrap.
N Do not tin the power supply leads before installing them
in the direct insertion connector. Tinned wires are not as
secure in the connectors and could be pulled out.
Alternatively, an Extron P/S 100 Universal 12 VDC Power
Supply can power up to ten MDAs or other Extron 12 VDC
devices using only one AC power connector.
d
Power LED — Indicates power is applied.