User's Manual

RF Power Amplifiers
Andrew Corporation – Power Amplifier Group
Propriety – Use pursuant to Company Instruction
4 of 4
Inputs and Outputs:
The amplifier is powered from a DC supply voltage, which can range from -38VDC to -
58.5VDC. The DC power is brought into the amplifier through a D-Sub connector
located on the face plate of the amplifier.
A second multipoint connector located on the amplifier face plate is used for serial
communication, monitoring and control. This connector is used both during factory tests
and at the system level by the customer .
Alarms and operating state are communicated to the outside world through the serial
communications bus and through the face plate LED.
The RF signal is brought into the amplifier through a female SMA type connector located
on the face plate of the amplifier. The amplifier RF signal is brought out of the amplifier
through a N type connector located on the face plate of the amplifier.
Control System:
A microprocessor controller is used to control the amplifier alarm system, control
environmental compensation of the amplifier.
Figure HePA850 Face plate view
Alarm
LED
RF output
N connector
DC Power
Connector
3W3 D-Sub
Captive Screw
Mounting
Monitoring& control
Multipoint connector
RF input
SMA connector