Extron Electronics MDA 4V SDI User Guide - Manual (Page 8)

MDA 4V HD-SDI and SDI User's Guide • Introduction
MDA 4V HD-SDI and SDI User's Guide
MDA 4V HD-SDI and SDI User's Guide • Introduction MDA 4V HD-SDI and SDI User's Guide • Connections MDA 4V HD-SDI and SDI User's Guide • Connections
Connections
MDA 4V SDI
POWER
12V
.5A MAX
1
2
3
4
SDI INPUT
SDI OUTPUTS
POWER
12V
0.4A MAX
OUTPUTS
1 2 3 4
MDA 4V HD-SDI
INPUT
1 3 2
1 3 2
Figure 8 — MDA 4V HD-SDI and SDI rear panels
a
HD-SDI or SDI Input connector — Connect an HD-SDI or SDI
input to this BNC connector. The MDA automatically equalizes
input, regardless of the rate.
N The MDA 4V HD-SDI can handle SDI video at the
signal rate of 270 Mbps.
b
HD-SDI or SDI Outputs (1 through 4) connectors — Connect
up to four HD-SDI or SDI devices to these BNC connectors. If
the MDA recognizes the input rate, the MDA outputs re-clocked
HD-SDI or SDI outputs.
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 9, on the next page, shows how
to wire the connector.
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.
Power Supply
Output Cord
Captive Screw
Connector
SECTION A–A
Ridges
Smooth
A A
Tie Wrap
Figure 9 — 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 5/16" (7 mm).
Longer bare wires can short together. Shorter wires
are not as secure in the 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 123 Universal 12 VDC Power
Supply, part #60-814-01, can power up to eight MDAs or other
Extron 12 VDC devices using only one AC power connector.