Siemens Nixdorf acquired the PAS in 1996  but dropped support in 1998. The NPfIT project was claimed to have deployed a total 141 new generation PAS by 2008  but this figure had risen to only 170 by 2010.
In 1996, Siemens Nixdorf acquired the PAS system and then stopped providing maintenance in 1998. The NPfIT project successfully installed a total of 141 state-of-the-art PAS systems by 2008, but this number had increased to 170 by 2010.