Fire Safety

RSS Transmitter

The RSS (Rapid Shutdown System) Transmitter enables rapid shutdown with Tigo's TS4 F and 2F products. Available with Pure Signal technology.
RSS Transmitter
RSS Transmitter

Fire Safety

RSS Transmitter


The Tigo RSS (Rapid Shutdown System) Transmitter completes the cost-effective rapid shutdown system architecture when paired with Tigo's UL-certified Fire Safety solutions - including the TS4-A-F (add-on), TS4-A-2F (add-on for two modules). The RSS Transmitter sends a signal via PLC (Power Line Communication) to the TS4-F units to keep PV modules connected while powered on. TS4-F units automatically enter rapid shutdown mode when the RSS Transmitter is switched off and resume energy production when power is restored to the RSS Transmitter. The RSS Transmitter with Pure Signal technology can link multiple RSS Transmitters together, enabling one coordinated keep-alive signal to the array to maximize signal integrity, even in large and complex solar installations. This solution complies with NEC 2014, 2017, and 2020 690.12 rapid shutdown specifications utilizing power-line communication (PLC). Available with Pure Signal technology for multi-transmitter sites, as a Kit, DIN Rail, or PCBA for integration into inverters.

  • Rapid shutdown initiation device for Tigo TS4-A-F and TS4-A-2F
  • The RSS Transmitter with Pure Signal technology can link multiple RSS Transmitters together in large commercial applications, enabling one coordinated signal to minimize crosstalk or signal interference
Features and benefits
  • Multivendor UL Certified solution to meet the NEC 690.12 2017/2020 code requirements
  • Module-level deactivation with automatic or manual shutdown
  • Easy installation, no commissioning process is required
  • Compatible with the largest network of UL-listed residential & commercial inverters
  • Integrated into many inverters, enabling plug and play installations with Tigo TS4-A-F and TS4-A-2F
  • NEW: available with Pure Signal technology, to simplify the design and installation of sites with multiple transmitters
RSS Transmitter

Additional resources



To view all Tigo downloads, click here
Datasheet: RSS Transmitter with Pure Signal technology
Datasheet: RSS Transmitter - Commercial
Datasheet: RSS Transmitter - Outdoor Kit
Technical Documentation
Application Note: Pure Signal Technology
Quick Start Guide: RSS Transmitter with Pure Signal technology
Quick Start Guide: TS4-F & RSS Transmitter
Installation Manual - TS4-A-F, TS4-A-2F, RSS Transmitter
Application Note: TS4-F & RSS Transmitter Troubleshooting Guide
Whitepaper - PV-OFF™ - Improving PV Safety
Marketing Materials
Case Study: Tigo Rapid Shutdown at Portland Airport
Tigo Commercial & Residential Flyer - North America

System diagram

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