An alarm system in which the installation-owned system is a direct extension of the police or fire alarm system is known as a(n):
A. Central station system
B. Local alarm system
C. Proprietary system
D. Auxiliary system
E. Bell-sound system
An alarm system in which the installation-owned system is a direct extension of the police or fire alarm system is known
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An alarm system in which the installation-owned system is a direct extension of the police or fire alarm system is known
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