
MNC-0500-002 5 of 36 Revision H
Amplifier Communication and Protocol, Octagon ISA CPU
Amplifier Communication and Protocol, Octagon ISA CPU
Overview
Refer to Figure 1 for basic configuration.
Note
In this chapter, the term analog refers to devices without a
serial interface. The term digital refers to devices with a
serial interface (RS-232/RS-485).
Xicom amplifiers typically respond to a message in less than 100
milliseconds.
Communication
Digital HPAs
Both rack-mounted and outdoor digital HPAs have a built-in
microprocessor for handling serial communications. With the exception of
the Prime Power Switch, all operation of digital HPAs can be completely
controlled via the serial interface (RS-232/RS-485).
Analog HPAs
With a Xicom digital controller, analog HPAs can be completely controlled
using a serial interface. Although Xicom’s analog HPAs can also be
controlled via an analog controller, a digital controller is needed to emulate
the serial protocol of a digital amplifier.
Compatibility
Two serial hardware interfaces (RS-232, RS-422/485) are available for
the control link.
Note
Amplifiers without an attenuator will reject attenuator
commands, commands that attempt to adjust output
power, and RF Inhibit Commands.
Amplifiers without the power monitor option will respond to
queries for power readings, but the value returned should
be ignored because output power is not being measured.
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to the U.S. Export Administration Regulations (EAR). Transfer of data herein by any means to a Foreign Person,
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