Paradise RA 5785 User Manual download pdf (Page 19)

Operations Manual, HPA3, Mini Compact Outdoor SSPA 208143 REV - 19

2.2.9 Chassis Ground Pin

A Chassis ground terminal is provided on the bottom side of the amplifier. A ¼ - 20 threaded

terminal is provided for equipment grounding.

2.3 Physical Features

In addition to the I/O connectors, the Mini Compact Outdoor user-friendly features include a

summary alarm indicator and a removable fan tray.

2.3.1 Summary Alarm Indicator

A summary alarm indicator LED is located on the input side of the amplifier. When the SSPA

is online, this indicator illuminates GREEN. When in a fault condition, it illuminates RED.

2.3.2 Removable Fan Tray

The Mini Compact Outdoor Amplifier’s cooling system represents a landmark in microwave

telecommunication amplifiers. It is a unique system of heatsinks that have been computer

optimized to provide extremely efficient cooling of all of the system’s functional blocks. This

high efficiency cooling system is primarily responsible for the small overall package size and

reduced weight of the unit (approximately 24.5 lbs or 11.1 kg).

The cooling system is based on a forced convection technique in which the system fans

provide the air intake while the exhaust is brought out around the outer perimeter of the fans.

The fans are 132 CFM rated and operate into approximately 0.3 in. H

O back pressure, and

produce 68.0 dB-A measured at a distance of 1 meter from the fan intake.

The air intake and exhaust are both located on the bottom side of the amplifier. The intake is

brought through two fans while the exhaust is along the two rows of heatsink fins as seen in

Figure 2-2.

A minimum clearance of 6 inches (152 mm) should be maintained between the bottom of the

amplifier and any mounting surface. This will ensure that there is no forced re-circulation of

airflow from exhaust to intake.

SWITCH

LINK

RF IN

STATUS

SSPA

ETHERNET READY

M & C

Figure 2-2: Mini Compact Outdoor SSPA Air Flow

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Paradise RA 5785 User Manual Page 19