Siemens RUGGEDCOM M969F, Installation Manual

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RUGGEDCOM M969F
Installation Guide
Chapter 2
Installing the Device
Connecting the Failsafe Alarm Relay 11
1
Figure 4: Panel Mounting (Typical)
1. Flange
2. Install the supplied screws to secure the flanges to the panel.
Section 2.4
Connecting the Failsafe Alarm Relay
The Failsafe output relay is provided to signal critical error conditions that may occur on the RUGGEDCOM M969F
series switches. The contacts are energized upon power up of the unit and remain energized until a critical error
occurs.
One common application for this output is to signal an alarm if a power failure or removal of control power
occurs.
The proper relay connections are as follows: