AR 10044005, Operating And Service Manual

Page: 25 / 72

Model 5000A225A
Rev B 11
2.3.1 RF Input
Input to the Model 5000A225A is accomplished through a female N-Type RF connector (50 ohm) found on
either the front or rear of the unit.
2.4 OPERATOR COMMAND AND CONTROL INTERFACE
This section describes the local and remote interface control of the Model 5000A225A amplifier. The
Keylock switch on the control panel is used to select between three control options. These are Local, Remote
and Inhibit.
The Local option allows for control of the Model 5000A225A using the control panel located on the front of
the unit. The Remote option allows for control of the Model 5000A225A using any of the remote (I/O) ports
found on the rear of the unit. The Inhibit option allows the Model 5000A225A to be placed into a locked
state preventing both local and remote control.
Figure 2-4 shows the state diagram for the Power and RF states of the Model 5000A225A. This diagram
should be used to understand the major states that the Model 5000A225A can be in. For simplicity of the
diagram, the Keylock switch position is only listed where relevant.
Power Off
RF Off
Power On
(Keylock not INHIBIT)
Power On
RF Off
RF On
Power On
RF Biasing
RF On
(Keylock not INHIBIT)
Power Off
RF Biasing Incomplete
Power On
RF On
RF Biasing Complete
RF Off
RF Off
Power Off
Power Off
Figure 2-4. Control State Diagram