The 40-190 is a 64 Channel Fault Insertion switch, primarily designed for the simulation of fault conditions in automotive applications involving the reliability testing of safety critical controllers.
It is designed to be able to insert 3 different fault conditions between the test fixture and the equipment under test:
Open-Circuit, Short-Circuit between UUT connections, Short-Circuit to other fault conditions such as POW/IGN/GND via Fault Insertion Bus.
Through relays on each channel enable signals to the UUT to be held open-circuit. Fault Insertion Buses allow any channel to be shorted to any other channel and also enable any channel to be connected to an external fault condition. The module is available with either 1 fault bus (40-190-001) or 2 fault buses (40-190-002). A 4 channel multiplexer on each bus allows an external signal level such as Power, Ignition or Ground to be selected as the fault condition.
Note: The 40-190 has been superseded by the 40-190B. The 40-190B is higher density, offers additional configurations/functionality & is more competitively priced. The 40-190 is still available, however should only be considered for legacy requirements.