This test bench is intended mainly for testing of the MIB3 OI. From the mechanical point of view it is a light aluminum construction consisting of grooved 20x20 profiles. The construction holds a harness fixed in a T1 25X40 wire duct, which is intended for unit interconnection, measuring technology and accessories. The front side of the device holds an ABT panel, a SMLS and an instrument cluster holders. The data buses and power supply terminals are accessible from the right side. Air conditioning unit and LDS controller are located on the left side. The speakers are on both left and right side. Power and data terminals are available also on the back side. This brings a potential of additional extension of the test bench. Accessories such as antennas and others are mountable to the top of the device.