MNC-0500-038
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Revision 2
Amplifier Communication and Protocol, XTRT, Touchscreen TWTA
Communication Parameters
Communications can be configured as follows:
Baud rates: 1200, 2400, 4800, 9600, 19200, and 38400
Parity:None, Even, or Odd (Parity only available with 7 data bits)
Data bits:7 or 8
Stop bits:1
Flow control options should be set to "none."
•
The default communication parameters are 9600 baud, N/8/1,
unless otherwise requested.
•
Parameters are selected on rack HPAs using the front panel
interface.
•
Parameters are selected on digital outdoor HPAs using a remote
interface.
Table 1, Packet Format
Start
Byte
Address
Byte
Device
Selection
Byte
Message
Byte
Parameters
as Required
End
Byte
Check
Byte
CRLF
(Ethernet
only)
Table 2, Start Byte, End Byte, & Check Byte
Protocol
Packet
Type
Accept/
Reject
Start
Byte
End
Byte
Check
Byte
Ethernet
Terminator
Byte
Printable
Message
(ASCII){
(ASCII)}
Response Message
Accepted
or Rejected
{
}
“Base 95”
13
(CR)
Message
STX
ETX
Non-Printable Response Message
Accepted
ACK
ETX
“Exclusive
OR”
13
(CR)
Message
Rejected
NAK
ETX
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