The devices behind innovative automotive electrical testing.

Three specialist devices for LV124 / LV148 — each solving a specific part of the test challenge. Fully integrated in the RTStand automated testing platform.

All three devices are integrated in the RTStand LV124 / LV148 fully automated testing platform. Learn about RTStand

Three devices. Three problems solved.

Each device addresses a specific part of the LV124 / LV148 test workflow — signal generation, interruption testing, and monitoring.

Ultra-fast Interrupter (UFI)

Short interruption testing for power lines up to 125A, CAN, LIN, Automotive Ethernet 1000base-T1, GMSL and more.
  • Max current: 125A
  • Bus lines: 4, e.g. CAN, LIN
  • Ethernet: 100 / 1000base-T1
  • GMSL: GMSL1
  • 10G Ethernet & GMSL 2: New generation 2026

Tube Analyzer

Up to 96-channel voltage and current logging at 100kHz — time-synchronised across all channels for precise ECU behaviour analysis.
  • Voltage: Up to 96 ch, ±60V
  • Current: Up to ±125A
  • Resolution: 10µs (100kHz)
  • Sync: Time-synchronised
  • Scalable: Daisy-chain multiple units

RTStand SignalGeneration

Arbitrary waveform and interruption profile generation with 45+ norm library for LV124 / LV148 power supply pulse profiles.
  • Norm library: 45+ norms
  • Waveforms: DC, sine, ramp, chirp + more
  • UFI control: Integrated
  • Import/Export: Excel profiles
  • Networks: 12V, 24V, 48V

Continuous innovation.

UFI — New hardware

10G Ethernet and GMSL2 support

New generation UFI adds support for 10G Ethernet and GMSL2 interruption testing — ready for next-generation vehicle architectures.
SignalGeneration — Software

Feedback measurements and multi-amplifier support

Software upgrade adds feedback measurements during interruption and short-circuit tests, plus support for multiple amplifier devices simultaneously.
SignalGeneration — Hardware

External UFI control expansion

Hardware upgrade enables external control of additional UFI devices — expanding interruption testing capacity for complex multi-interface ECUs.

Not sure which device you need?

Tell us about your ECU and your current test setup. We will recommend the right setup — or explain when the full RTStand platform makes more sense than individual components.

LV124 / LV148 Testing Devices

Built by WKS Informatik GmbH · Ravensburg, Germany – Imprint