Comtech EF Data XPA-200 Installation And Operation Manual page 56

XPA200-7984-I-OPT1, X-Band SSPA
5.3.3.2 RS-485
RS-485 cabling can be implemented with a single ribbon cable
using 'IDC Mass Terminated' style connectors or with discrete
wires using 'solder-cup' style connectors.
of ribbon cable must be allowed to reach the system monitor and
control computer.
5.4 PROTOCOL
5.4.1 Transmission Mode
The transmission mode is half duplex implemented in
Command/Response convention.
system monitor and control unit to initiate all communications by
command and the SSPA to respond with either confirmation or an
error message.
5.4.2 Baud Rate
The default serial port Baud Rate is 9600.
4800, 2400, and 1200 and 300 are also supported.
5.4.3 Format
The following parameters are the default character format.
1 Start Bit
7 Data Bits
2 Stop Bits
1 Parity Bit
An optional character format that can be selected is:
This can only be selected from the Front Panel Menu.
1 Start Bit
8 Data Bits
1 Stop Bit
0 Parity Bits
5.4.4 Character Set
The character set implemented is ASCII.
XPA200-7984-I-OPT1, Rev.2
The confirmation may contain status information.
This method requires the external
Remote Control
A sufficient length
Baud rates of
5-4