Failsafe Alarm Relay Wiring - RuggedCom RuggedServer RS416 Installation Manual

Modular serial device server with integrated managed ethernet switch

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4.4 Failsafe Alarm Relay Wiring

The "Failsafe" output relay is provided to signal critical error conditions that may occur on the

RS416. The contacts are energized upon power up of the unit and remain energized until a critical

error occurs. The proper relay connections are shown in Figure 12. One common application for

this output is to signal an alarm if a power failure or removal of control power occurs. The failsafe

relay current and power handling capabilities are defined in

Figure 12: Failsafe Alarm Relay Wiring

Rev104

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