Keep-alive signal

A keep-alive signal is a recurring signal that tells connected devices normal operation is allowed; if the signal disappears, devices can switch to a safe state.

Product(s)

RSS Transmitter

Enables rapid shutdown with Tigo's TS4 F and 2F products. Available with Pure Signal technology.

TS4-A-F

Dedicated rapid shutdown device for 1 solar module up to 725W

TS4-X-F

Enhance safety and meet code requirements with rapid shutdown

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What does Keep-alive signal mean?

A keep-alive signal is a recurring signal that tells connected devices normal operation is allowed; if the signal disappears, devices can switch to a safe state.

Why does Keep-alive signal matter in a solar project?

This term helps explain how a PV system is designed, installed, monitored, or operated. A clear definition keeps owners, installers, and inspectors speaking the same solar dialect.