XJQuad

An XJQuad consists of four XJLink2 units in one case, allowing simultaneous testing of four UUTs with up to four TAPs on each UUT.

Each 20-pin connector has electrical characteristics identical to those of the XJLink2.

Due to the higher power requirements of supporting 16 TAPs, the XJQuad uses an external power supply.

The behaviour of the four Run buttons on the XJQuad depends on the Test Mode in which XJRunner is operating. In Independent test mode, each Run button will start tests on the related UUT port; in Group test mode, the run button will start tests on every UUT/XJLink that is selected to run.

Each port of the XJQuad has its own set of status LEDs to indicate that tests have passed (green), failed (red) or are running (flashing yellow), to allow the status of the attached units to be clearly seen.