User's Manual

Table Of Contents
4-2 888-2687-001 10/19/07
WARNING: Disconnect primary power prior to servicing.
Ranger ™ Mobile Series
Section 4 Theory of Operation
4.3 Transmitter Control System
The Ranger Series transmitters utilize a very advanced but simple to use control system.
It is a microprocessor, serial communication based software control system but uses
backup Life Support logic circuitry and hard wired control lines, allowing the
transmitter to be on the air even if the main control system fails.
Figure 4-1 shows a simplified block diagram of the transmitter control system. The left
side of the diagram shows the external connections to the transmitter or more
specifically the External I/O Board. The right side of the diagram shows the internal
control system inter-connections from the Main Controller to the various sub-systems
inside the transmitter cabinet.
Figure 4-1 Control System Simplified Block Diagram
Serial Remote control is not available
Note: