About Signal Fire

Built for the technicians,

that build the network.

Signal Fire is a Berlin-based engineering team that develops professional fiber optic fusion splicers for the German NE4 market – telecom hardware at a price that the field can truly justify.

Our Mission

Precise splicing, without the premium surcharge.

For years, German NE4 installers only had two options: pay over €3,000 for a flagship Fujikura or risk a no-name device that would fail on day two. We saw a third way – a fusion splicer designed specifically for NE4 workflows, with premium quality at a price for the technicians who do the work.

The AI-9 is exactly that splicer. 6-motor core alignment, ≤ 0.02 dB typical splice loss, integrated NE4 crimp protection, and a complete starter kit in every box – for €999.

What We Stand For

Four principles. Every device.

NE4-Geeignet

Each device is tailored to the German NE4 specification - crimp protection, splice loss, and field workflows.

Field-tested

Designed by technicians for technicians. 6-motor alignment, robust housing, and battery life that lasts a full day in the field.

Lifetime support

Two years manufacturer's warranty plus lifetime professional field support for every device delivered.

Made for Germany

Designed for German NE4 workflows, with standard DHL shipping nationwide and full tracking for every order.

Ready when you are

Splice smarter. Deliver faster.

See why German NE4 technicians are upgrading to the AI-9.