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3. Installation
RuggedCom® RuggedBackbone™ 21 RX1512 Installation Guide Rev 105
3.2.3. DC Power Supply Wiring Example
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Figure 3.9. Wiring for RX1512 DC Power Supply
• It is recommended to provide a separate circuit breaker for the power supply.
• Equipment must be installed according to applicable local wiring codes.
3.3. Critical Alarm Wiring
The Critical Alarm output relay signals critical error conditions that may occur on the
RuggedBackbone™ RX1512. The contacts are energized upon power-up of the unit and remain
energized unless a critical alarm condition is detected. Relay connections are shown in the Critical
Alarm Relay Connector diagram. You can configure control of the relay output through the ROX™
user interface.
A common application for this output is to signal an alarm in case of a power failure.
Figure 3.10. Critical Alarm Relay Connector