Comtech EF Data HPCST-5000 - Manual (Page 20)

Introduction High-Power TWTA Satellite Terminals
1–4 Rev. 1
The system outdoor terminal components are weatherproof units for the uplink and
downlink requirements. The redundant assemblies have been designed for antenna or
pole mounting. The system has a single customer interface connector for remote monitor
and control.
The onboard microcomputer monitors and controls the operational parameters. This
M&C system enables the user to locally or remotely control functions such as:
•
Output power level
•
Output On/Off
•
Transmit/Receive channel frequency
The system also reports terminal configuration status, as well as fault status of all
components. The RFT can be initially configured by a keyboard/LCD controller within
the enclosure, or by connection of a common ASCII/EIA-232 terminal connected to the
serial port at the system interface connector (P1). A simple command set allows
configuration control and retrieval of status information.
If the customer M&C control unit is a more sophisticated monitor and control station
computer, the serial port can be set to EIA-485 for bus operation. A separate,
rack-mounted, redundant controller for the TWTAs provides the user with control and
status of the TWTA operation, as well as an automatic high voltage enable for
switchover.
Refer to Figure Chapter 1-3 for a system block diagram of the HPCST-5000/-7000
redundant systems.
Refer to Figure 1-4 for a system block diagram of the HPKST-12000 redundant systems.