Can Ajax Replace a Honeywell VISTA System?

Yes, in some installations—but this is a redesigned Ajax system, not a universal panel-for-panel swap. An Ajax system can replace the VISTA control platform while retaining compatible wired intrusion detectors through an appropriate Ajax integration design. A professional must first test the wiring, detector condition, contact types, power requirements, tamper circuits, and zone behavior. Keypads, communicators, sirens, and life-safety devices are separate compatibility decisions.