Keep building automation systems available when control continuity matters most. BAC-TW RDU redundancy is designed to support resilient HVAC operations in environments where a single point of failure can disrupt comfort, scheduling, and facility performance. For enterprise buildings, redundancy is not a luxury. It is the difference between a controlled response and an avoidable outage. This Cisco offering is suited to teams that need dependable operation across critical spaces, whether the priority is occupant comfort, operational stability, or maintaining service during maintenance events. Because HVAC control systems often sit at the center of broader building operations, redundancy helps protect more than temperature management. It supports continuity for facilities teams, reduces exposure during planned work, and gives infrastructure owners a stronger posture for uptime-sensitive environments. When the cost of interruption is high, redundancy earns its place.