The telescope used for beam tests is made of 8 planes of silicon strips providing 4 (x,y) pairs of coordinates for each beam particle. The sensors are mounted between the 4th and 5th planes. The track impact extrapolated in the sensor plane is known with an accuracy of about 1 micron. The telescope is equipped with small scintillation counters providing the trigger signal.

The data acquisition system is based on an OS9 processor. Individual pixels are addressed in consecutive clock cycles and an external 12-bit ADC unit is used to digitise the raw analogue signals. Data from two consecutive frames are kept in a circular buffer memory to allow off-line Correlated Double Sampling signal processing.