Power
Receptacle
DC Power Cord
Captive Screw
Connector
A 152 Plus
Amplier
DC Power
Outputs
DO NOT USE
AC Power Cord
Tie
Wrap
Captive Scr
Connector
Power Supply
Output Cord
PS 1220
Power Supply
POWER
12V
0.7A MAX
Figure 3. Power Connector
ATTENTION:
• Always use a power supply supplied by 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.
• The amplifier is suitable for use in environmental air space in accordance
with Section300.22.C of the National Electrical Code, and Sections 2‑128,
12‑010(3) and 12‑100 of the Canadian Electrical Code, Part 1, C22.1.
• 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 AV processing equipment in an ordinary
location, Pollution Degree 2, secured to the equipment rack within the
dedicated closet, podium, or desk.
• Although the amplifier is plenum rated, the power supply provided with it
is not. The power supply must not be placed in the plenum space. Cables
to and from the amplifier must also be plenum rated. The DC power cord
provided with the unit is not plenum rated.
• The installation shall be in accordance with the applicable provisions of
National Electrical Code ANSI/NFPA 70, article 725 and the Canadian
Electrical Code part1, section 16.
• The power supply shall not be permanently fixed to building structure or
similar structure.
• 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.
NOTE: Do not tin the wires. Tinned wire does not hold its shape and can become
loose over time.
MPA 152 Plus • Panels and Cabling 5
