ALS-1 and DLS-1 Power Supply Module Instruction Leaflet

This instruction leaflet provides specifications, construction details, and acceptance testing procedures for the ALS-1 and DLS-1 power supply modules used as direct replacements for earlier models in relay systems. It covers DC input/output ratings, isolation levels, environmental data, operation of voltage monitoring and alarm functions, and step-by-step testing for both AMP and DIN connector variants.