Paradise Datacom HPAC-100-RM, Operation Manual

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Operations Manual: HPAC-100/125/150/200/250-RM SSPA 4-1
4 Theory of Operation
Introduction
This section contains information on the theory of operation of the HPAC-100/125/
150/200/250-RM. This includes: simple block diagrams of the system, an explanation
of some of the active components, and the fault determination.
Functional Block Diagram
The HPAC unit is comprised of four essential areas: RF components, I/O card with
Processor, Power Supplies, and the Interface Mechanisms. Figure 4-1 shows how
these elements are linked together.
Figure 4-1: System block diagram.
Figures 4-2 and 4-3 show the basic RF block diagrams for a 2 RF module and 3 RF
module unit.
Power Supplies
I/O
LEDs
&
Pushbuttons
LCD
Serial Port Interface Port
Parallel
Port
Switch
Port
Prime Power Input RF Input
RF
Output
Processor
RF Components