Application Area

The DS2642 FIU & Power Switch Board combines two components:

• Central Failure Insertion Unit (FIU) for simulating failures for the I/O channels of the SCALEXIO HighFlex boards and MultiCompact units
• Power switches for simulating up to 10 switched potentials, for example, on terminal K15

Central FIU

The central FIU on the DS2642 is connected to the failure routing units of the I/O boards via the failrails. It switches the failures for the channels on the boards.

The following options are available:

• Broken wires on each individual channel, with or without bouncing as selected
• Crossed wire between two channels, with or without bouncing
• Short circuit to a fixed potential such as the supply voltage, with or without bouncing

The failures are prepared on the I/O boards by relays, and failure insertion is performed by semiconductor switches on the central FIU. The result is a fast switching frequency that enables loose contacts to be simulated.

Power Switch

The power switch provides 10 switchable channels, which supply current to the external devices such as ECUs and loads. The current can be measured simultaneously. The central FIU can also use the power switch channels to simulate short circuits to the supply to the ECU. The channels can be bundled to increase the current and are selected in ConfigurationDesk. Several DS2642s can be used in one SCALEXIO system.

Current Measurement

The power consumption of the connected components can be measured precisely on each power switch channel.