Comtech EF Data HPCST-5000 - Manual (Page 127)

Rev. 0 6–1
6
Chapter 6.
THEORY OF OPERATION
This chapter provides the basic theory of operation for the Monitor and Control (M&C)
board, high stability oscillator, IFLOs synthesizers, and the up and down converters.
Note: Refer to Appendix A for 140 MHz configuration.
6.1 Monitor and Control
The RFT-500 uses a sophisticated microcontroller module to perform the M&C
functions of the terminal. This board (Figure 6-1) is located inside of the RFT-500, on
top of the other assemblies.
The M&C monitors the RFT-500 and provides configuration updates to other modules
within the terminal when necessary.
Terminal configuration parameters are maintained in EEPROMs, which provides for
total recovery after a power-down situation.
Fault monitoring and status gathering are also provided.
All RFT-500 functions are accessible through the local front panel keypad/display or a
remote communications interface.