Bridge hardware versions released after January 2019 have a voltage arming pin that allow the Bridge to follow the armed condition of an on-site alarm panel. Each alarm panel brand has a specific voltage output range that will follow the disarmed and armed status of the panel. The CHeKT Bridge has a voltage meter that can be programmed to arm and disarm based on a High and Low change with any voltage ranging from 0v - 12v. This allows security integrators the ability to use any voltage change to arm and disarm the Bridge.