Aim tti single power supply 0 30v 0 3a pl303 aim tti pl303 p to meet the varying needs of today s engineers a comprehensive array of interfaces is provided rs 232 usb and lan ethernet with lxi support are provided as standard an additional gpib interface is also optionally available p p each of the digital bus interfaces provides full control of voltage current and output on off plus read back of voltage current and status the interfaces are at ground potential and are opto iso