To further improve reliability, Avigilon Alta will be implementing changes that will engage the remote relay for
the entry when the REX is triggered even if the associated video device is unavailable. The controller for this
relay should have a battery backup or be wired in a fail-safe configuration for maximum reliability.
Note that in Alta Control Center reporting, a REX event on Video Reader Pro and Video Intercom Reader Pro
entries will appear twice due to these changes. This duplicate can be safely ignored.
Appendix: Best practices - Wiring a REX to your Avigilon Alta access control system 71