Description

Miteq NSU1-S50-R Redundancy Switch Overview

The Miteq NSU1-S50-R is an automatic redundancy switch designed specifically for use with Miteq frequency converters.

In our setup, we’re utilizing two NSU1 units:

• One switch manages redundancy between two up-converters.
• The second switch provides identical functionality for a pair of down-converters.

Due to missing converter interface cables, we were unable to test the automatic switching functionality. However, manual switchover between converters was successfully verified, giving us strong confidence that full automatic operation will perform as expected once all components are in place.

The fault indicator light visible in the accompanying photograph signals a missing input—this is expected, as only one converter is currently connected.

Below is a summary of key information we’ve gathered during initial testing and configuration.

The Miteq NSU1-S50-R Redundancy Switch is part of Miteq’s NSU Series, designed to provide 1:1 redundant protection for satellite communication systems and RF signal chains. Here’s a breakdown of what it does and why it’s useful:

️ Key Features

• 1:1 Redundant Switchover: Automatically switches between a primary and backup RF converter or amplifier when a fault is detected.
• Rear Panel Four-Port Transfer Switches: These allow seamless signal routing between active and standby units.
• Alarm Monitoring: Continuously monitors status alarms from the online unit. If a fault occurs, it triggers a switchover to the backup.
• Serial Link Communication: Can synchronize frequency and attenuation settings between the online and backup units, ensuring the backup is ready to take over instantly.
• Manual Override: Offers a simple manual mode for direct control when needed.
• Remote Control Options: Supports RS485/RS422 and Ethernet (Telnet, SNMP, embedded web server) for remote monitoring and configuration.
• Hot-Swappable Power Supplies: Enhances uptime and serviceability.
• Embedded Web Interface: Provides user-friendly access for configuration and diagnostics.

This switch is typically deployed in satellite ground stations, broadcast facilities, or telecom hubs where uninterrupted RF signal transmission is critical. It ensures that if the primary unit fails, the backup unit takes over without manual intervention—minimizing downtime and preserving signal integrity.