Model ACM4 access power controller distributes 12/24 Vac or dc over 4 fail-safe/fail-secure outputs to power/control small electric strikes and magnetic locks. Its fire alarm interface is field selectable for any or all outputs with individual LEDs to indicate lock status, and fused or PTC protected outputs can be utilized as dry Form C contacts. Unit can be powered by one common power source for both operation and locking devices or by 2 independent power sources.