Honeywell Home 4229 Wired 8-Zone Expander Relay Board for ECP Bus Zone VISTA Control Panels

Optimize your commercial or residential security setup by adding scalable, reliable zone capacity with the Honeywell Home 4229 wired zone expander / relay board. This control panel module delivers eight addressable, supervised Class B zones (each with 1K end-of-line resistors) and two on-board Form C relays, so you can expand alarm coverage and trigger external devices—doors, strobes, or networked surveillance recorders—without swapping control panels. Designed for ECP bus addressable VISTA systems (compatible with VISTA-15P, VISTA-20PUL, VISTA-21iP and more), the 4229 installs easily using simple DIP-switch addressing and connects along the four-wire ECP bus for flexible placement. Supervision for open, short and normal circuit conditions ensures reliable monitoring and reduces false alarms, while the surface-mount form factor keeps the module secure and accessible. Ideal for security integrators and facility managers who need dependable expansion for alarm monitoring, access control tie-ins, and surveillance integration. Upgrade your VISTA control panel capacity—add the Honeywell Home 4229 to your system today to enhance coverage and automation.

• Expand your VISTA alarm system with 8 addressable, supervised zones to cover more doors, windows and perimeter points
• Add two programmable Form C relays to trigger automation, notification or integration with access control and surveillance systems
• Simple DIP-switch addressing and ECP bus compatibility make installation quick and reliable for professional installers
• Built-in 1K end-of-line resistors and Class B supervision detect open/short conditions for dependable alarm monitoring
• Surface-mount, wired design that mounts anywhere along the four‑wire ECP bus for flexible placement in control cabinet or remote locations