The system is often used alongside video entry phones (such as the K-1705-3 , detailed in related documents like DOD# 158) to provide visual verification of visitors before granting access. III. Modern Significance in Security
The C-4000 (referenced in ) serves as a multi-tenant entry controller designed to interface with standard dedicated phone lines or CO lines. Its primary function is to allow visitors to contact tenants via an entry phone, providing a secure method for remote door or gate release. II. Core Functionalities Capacity: Supports up to 250 tenants or phone numbers. Dod (164) mp4
Features two Wiegand inputs for proximity card readers or keypads, and two programmable relays for controlling multiple gates or doors. The system is often used alongside video entry
In the context of modern infrastructure, the C-4000 represents the shift toward centralized, programmable building security. It allows for: Its primary function is to allow visitors to
Many configurations support activity logging, ensuring a digital trail of who accessed the building and when. Contextual Alternative: Research and Medicine