Terrasat LNB 1:1 Protection System

Terrasat LNB 1:1 Protection System (RxR)

Intelligent Receive 1:1 Redundant System for C, X, Ku & Ka-Band LNBs

The Terrasat LNB 1:1 Protection System (RxR) is a compact, intelligent receive redundancy solution designed to ensure uninterrupted downlink operation for mission-critical SATCOM networks. This integrated outdoor system combines:

RX 1:1 Redundant Switching
Multiband LNB Control (Quad-Band capable)
Redundant Internal 10 MHz Reference

Engineered for C-Band, X-Band, Ku-Band, and Ka-Band applications, the Rx 1:1 system operates independently from transmit redundancy, preventing chain-switching complications and simplifying system architecture.

Available now at Esatcom Inc.

The New RxR Advantage

✔ Innovative Hot Standby Mode – no external logic controller required
✔ User-configurable alarm thresholds
✔ Eco-mode for warm standby (reduced energy consumption)
✔ Pre-assembled solution with your choice of LNB
✔ Independent from IBUC switching
✔ SNMP selectable versions
✔ RS232/485 & handheld terminal support
✔ Embedded TCP/IP web pages

This creates a fully integrated outdoor receive redundancy platform.

System Features

Extended monitoring & alarm indication of:

Composite input power level

LNB current

Supply voltage

10 MHz reference level

Multiband LNB control (4 voltages + tone)

User-configurable alarm thresholds and switching criteria allow optimization for site conditions.

Multiband LNB Control

Voltage Selection

13 V (11.5 – 13.9 V)
15 V (14.2 – 16.3 V)
18 V (16.6 – 20.0 V)
24 V (20.3 – 26.0 V)

22 kHz Tone

Frequency: 22 kHz ± 4 kHz
Amplitude: 600 mV ± 200 mV
Duty Cycle: 40–60%

Provides quad-band LNB compatibility in a single integrated platform.

Monitor & Control

Standard Version

Ethernet (RJ45)
RS232/485 (PT02E-14-19S connector)
Handheld terminal support
Summary Alarm A & B Form-C relays
LED Indicators:
    Power
    Ethernet Activity
    A & B Online
    A & B Alarm
    Normal / Emergency Mode

Cyber Hardened Version

HTTPS
SSHv2
Selectable SNMP V1, V2, V3 (USM & VACM)
XSS protection
Two NTP servers for redundancy
FIPS 140-2 compatible
New high-end controller board & firmware

Ideal for government & secure telecom networks.

Typical Applications

Teleport gateways
Broadcast downlinks
Government receive sites
Air Traffic Control networks
Critical infrastructure monitoring

The Rx 1:1 system complements Terrasat TX redundancy systems but operates independently — avoiding chain-switching complexity.