MNC-0500-026
4 of 32
Revision M
Amplifier Communication and Protocol, Rabbit CPU
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.
Figure 1-1 Basic Configuration
Protocol
Message Format
•
Commands, Queries, and Responses are formatted according to,
Table 1.
•
Messages are delineated using start and stop characters, followed
by a check byte.
•
The address byte allows a master device to selectively
communicate with individual devices that are sharing an RS-485
bus.
•
Each message has a mandatory message byte, followed by a
variable number of parameters. Some messages have no
parameters, while others can have many. The variable length
parameter field is also used to hold message responses.
•
For Ethernet only. Each message must be terminated with a
carriage return character (CR) or carriage return line feed character
pair (CRLF).
EAR EXPORT CONTROLLED: The information contained in this Manual refers or relates to a product that is subject
to the U.S. Export Administration Regulations (EAR). Transfer of data herein by any means to a Foreign Person,
whether in the U.S. or abroad, may require an export license from the U.S. Department of Commerce.
