Alarm Extenders (ONS 15600 only). The Alarm Extenders tab allows you to set up external alarms and external controls. The Alarm Extenders subtabs include: External Alarms External Controls Virtual Wires
(ONS 15600 only). The Alarm Extenders tab allows you to set up external alarms and external controls. The Alarm Extenders subtabs include:
External Alarms
External Controls
Virtual Wires