Upcom Y User's Guide download pdf (Page 6)

UPCOM TECHNOLOGIES

RF Output

The RF Output is provided at a waveguide flange in the Outdoor BUCs. The C Band BUCs

have CPR style grooved flange (CPR-137G). An isolator is provided at the output flange with a

termination capable of handling full reflected output power.

Caution should be observed here to make sure that the antenna or a suitable termination

(dummy load) is connected to this port before operating the BUC. The BUC is protected

against reflection but dangerous levels of microwave energy can be present at this port. The

output of the BUC should be connected to the antenna feed by means of flexible or rigid

waveguides. The use of coaxial cables and adapters is not recommended and it will void the

equipment warranty .

Never look directly into the RF output waveguide.

M & C Connector

The Monitor and Control (M & C) connector is the primary interface point for controlling the

BUC and monitoring fault conditions. It also provides control to a waveguide switch in

Redundant configurations

A Redundant configured unit may be operated in stand-alone mode, and behaves in a similar

way to a normal Microcontroller equipped unit. If this is done, it is important to cover the

Redundancy Port to protect it from the external environment, since there are live voltages

present on this interface. Never connect anything except for the supplied cables to this

interface port.

Airflow

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

brought through one or two fans ( two fans on 50 watts units KU Band and higher and one fan

on lower power units) while the exhaust is along the rows of heat-sink fins.

A minimum clearance of 12 inches (305 mm) should be maintained between the air intake of

the Outdoor BUC and exhaust during operation. This will ensure that there is no forced re-

circulation of airflow from exhaust to intake.

Some lower output power units are not equipped with a fan, but the same clearance stated

above must be kept around the unit for proper operation.

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Upcom Y User's Guide Page 6