Extron electronics VersaTools MDA 5V User Manual page 8

Connections
POWER
12V
0.4A MAX
Figure 4 — Power connector wiring
C
N
W
d
Power LED — Indicates power is applied.
e
Loop connector — Provides passive loop-through for signal
f
High Z / 75 Ohm switch — Select 75-ohm termination on or off.
MDA 5V, 5SV, 5A RCA • Connections
6
Power Receptacle
DC Power Cord
Captive Screw Connector
Negative
+12 VDC
When connecting the power supply, voltage polarity
is extremely important. 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.
Do not tin the stripped power supply leads before
installing the captive screw connector. Tinned wires are
not as secure in the captive screw connectors and could
pull out.
The two power cord wires must be kept separate
while the power supply is plugged in. Remove
power before continuing.
High Z — Select this position (up) if you are
connecting a terminated device to the Loop connector.
75 Ohm — This position (down) terminates the Input
connector with 75 ohms of impedance. Select this
position if you are not using the Loop connector, or
if you are connecting an unterminated device to the
Loop connector.
Ridges
Smooth
A A
SECTION A–A
Power Supply
Output Cord
Power Supply
(12 VDC, 1 A )
AC Power Cord
External