Extron electronic MPA 401-70V Car Amplifier User Manual


 
Power Input
a Power connector — The MPA 401-100V ships with an Extron 36 W desktop power
supply (PS 1230 [part number 70-769-01]). The MPA 401-70V ships with either
the Extron 36 W desktop power supply or the Extron 12 VDC, 5 A power supply
(EPS 1250 C [part number 70-725-01]).
When using the EPS 1250 C power supply, connect the two pole, 3.5 mm captive
screw connector from the power supply to the power socket on the rear panel of the
MPA 401-70V, as shown below in figure 3. Ensure the connections have the correct
polarity as shown.
CAUTION: Always use a power supply supplied or specified by Extron. Use
of an unauthorized power supply voids all regulatory compliance
certification and may cause damage to the supply and the end
product.
Unless otherwise stated, the AC/DC adapters are not suitable for
use in air handling spaces or in wall cavities. The power supply is
to be located within the same vicinity as the Extron A/V processing
equipment in an ordinary location, Pollution Degree 2, secured to the
equipment rack within the dedicated closet, podium or desk.
The installation must always be in accordance with the applicable
provisions of National Electrical Code ANSI/NFPA 70, article 75
and the Canadian Electrical Code part 1, section 16. The power
supply shall not be permanently fixed to building structure or similar
structure.
NOTES: The length of the exposed wires in the stripping process is critical. The
ideal length is 3/16 inches (5 mm). Any longer and the exposed wires may
touch, causing a short circuit between them. Any shorter and the wires
can be easily pulled out even if tightly fastened by the captive screws.
Do not tin the wires. Tinned wire does not hold its shape and can become
loose over time.
Power Receptacle
DC Power Cord
Captive Screw Connector
AC Power Cord
Ground
+12 VDC
EPS 1250 C
Power Supply
(12 VDC, 5 A )
POWER
12V
1.5 A MAX
SECTION A–A
Ridges
Smooth
Power Supply
Output Cord
AA
3/16"
(5 mm) Max.
12V
1.5 A MAX
MPA 401-70V
Figure 3. Connecting the EPS 1250 C Power Supply to the MPA 401-70V
MPA 401-70V and MPA 401-100V • Rear Panel and Cabling 4