Comtech EF Data XPA-200, Installation And Operation Manual

Page: 53 / 96

XPA200-7984-I-OPT1, X-Band SSPA Remote Control
XPA200-7984-I-OPT1, Rev.2 5-1
Chapter 5
Remote Control
5.1 GENERAL
Each COMTECH X-Band SSPA can be remotely controlled through a
serial port. COMTECH’s simplified Command/Response protocol is
easily invoked by either a monitor and control computer, a non-
intelligent ASCII terminal or a laptop computer operating in
terminal emulation mode. All SSPA configuration parameters as well
as all monitor and status information is available via the remote
port.
5.2 ELECTRICAL INTERFACE
The remote control interface supports either 2-wire RS-485,
4-wire RS-485 or RS-232C. The default port is 2-wire RS-485.
Selection of the interface type is made via front panel menu
selection.
5.2.1 RS-232C
Levels, pulse shapes and impedances conform to EIA standards
for asynchronous operation.
5.2.2 RS-485
Levels, pulse shapes and impedances conform to EIA
standards.
5.3 PHYSICAL INTERFACE
All three interface types (2-wire RS-485, 4-wire RS-485 and
RS-232C) are implemented alternately through the same 9-pin
connector.