Comtech EF Data HPCST-5000 - Manual (Page 18)

Introduction High-Power TWTA Satellite Terminals
1–2 Rev. 1
1.1 Introduction
The key component of these high-power systems is the external high-power TWTA.
When the TWTA is coupled with the CST-5000/-7000, and KST-12000 satellite terminal
systems, these components form an integrated high-power transceiver system. These
all-weatherized units are designed for the harsh, uncontrolled, outdoor environment
typical of antenna mounting. These completely integrated systems meet the requirements
for private, regional domestic, and international C-band or Ku-band satellite networks.
All three products may be configured for single thread or 1:1 redundant systems.
Refer to Table Chapter 1-1 for a typical HPCST-5000 and -7000 redundant system.
Table Chapter 1-1. Major Assemblies of the HPCST-5000/-7000
Nomenclature Description
Outdoor Low-Noise Amplifier (LNA) Assy Consists of a transit reject filter, redundant LNAs
(65
°
K; 40
°
K Optional) and a C-Band waveguide
switch.
Outdoor HPCST-5000/HPCST-7000 Redundant
Assy Consists of two radio frequency terminals (RFTs)
assemblies. Each RFT includes an up converter
with a 70 MHz IF input, a down converter with a
70 MHz IF output, a monitor and control (M&C)
microprocessor, and a power supply.
Outdoor high-power TWTA Redundant Assy
(Figure Chapter 1-2 )
Consists of two high-power TWTAs, a waveguide
switch, an output coupler, and a system cable
harness with a customer-interface connector for
system control.
HPS-1110 An optional indoor, rack-mounted, redundant
TWTA controller. Allows the customer M&C of
TWTAA operations.
Redundancy Switch Unit (RSU) Along with a redundancy cable/hardware kit,
provides the system with a single M&C interface,
redundancy switchover, and cabling.