beautypg.com

Redundant system, 2 redundant system – Comtech EF Data HPCST-5000 User Manual

Page 24

background image

Introduction

High-Power C-Band Satellite Terminal

1–8

Rev. 0

1.4.2 Redundant

System

Note: Refer to Section 4 for a detailed description of the redundancy configuration.

Refer to Table 1-3 for typical HPCST-5000 redundant system components.

Table 1-3. HPCST-5000 Redundant System

Nomenclature

Description

1:1 Redundant LNA Plate

Consists of transmit reject filter, redundant LNAs
(65

!K), and a C-Band waveguide switch.

Radio Frequency Terminal (RFT)

Consists of two radio frequency terminal (RFT)
assemblies. Each RFT includes an up converter, a
down converter, an M&C microprocessor, and a
power supply.

C-Band SSPA Assembly

Consists of two high-power SSPAs and a waveguide
switch, high-power termination and connecting
waveguide.

Redundancy Switch Unit (RSU-503L)

Along with a redundancy cable/hardware kit, the RSU-
503L provides the system with a single M&C
interface, redundancy switchover control, and cabling.

Note: For more information, refer to RSU-503 Redundancy Switch Unit Installation and
Operation Manual.

The HPCST-5000 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 HPCST-5000 system has a single customer-interface
connector for remote monitor and control.

The on-board microcomputer monitors and controls the operational parameters. This
M&C system enables the user to locally or remotely control functions such as:

" Input/Output attenuator level
" Output On/Off
" Transmit/Receive channel frequency

The HPCST-5000 reports terminal configuration status, as well as fault status of all
components. The RFT can be initially configured by an optional on-board keypad or an
optional KP-10 Hand-held Keypad, or by connection of a common ASCII/EIA-232 or
EIA-485 terminal connected to the serial port at the system interface connector. A simple
command set allows configuration control and retrieval of status information.