What is a requirement for the pharmacy security system device?

A pharmacy security system device is crucial for protecting medications and ensuring that controlled substances are stored securely. The correct requirement for a pharmacy security system device is that it must send an alarm even if communication lines are cut. This is essential because it ensures that the pharmacy is alerted to potential breaches in security, regardless of whether the regular communication systems are operational.

In the event of a break-in or tampering, the ability to continue monitoring and alerting is vital to prevent losses and maintain the safety of the pharmacy's contents. This feature helps ensure a higher level of security by not relying solely on a single means of communication, thus providing a redundant security measure that enhances protection against theft or unauthorized access.

Other options suggest limitations that would not be conducive to effective security management. For instance, a wired-only system may be more vulnerable to specific types of attacks, while not requiring backup power could lead to failure in security during power outages. Basic door locks alone are insufficient without an integrated security alarm system that can respond to breaches, rendering them inadequate as the sole form of security.