The 'Standard' range of power supplies has been specifically designed for General Purpose applications including Fire and Access Control that require a cost effective solution; but also featuring an open collector fault output.
The 'Vision' range of power supplies has been specifically designed for CCTV installations and feature closely regulated 24V dc outputs as well as 24V a.c. models.
The d.c. models are Switch Mode units which benefit from a universal mains supply voltage of 100V to 253V a.c.