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RUGGEDCOM RS900GF
Installation Guide
5.
Using two #6-32 screws for each adapter, secure the device to the panel.
Section 2.5
Connecting the Failsafe Alarm Relay
The failsafe relay can be configured to latch based on alarm conditions. The NO (Normally Open) contact is closed
when the unit is powered and there are no active alarms. If the device is not powered or if an active alarm is
configured, the relay opens the NO contact and closes the NC (Normally Closed) contact.
NOTE
Control of the failsafe relay output is configurable through ROS. One common application for this relay
is to signal an alarm if a power failure occurs. For more information, refer to the RUGGEDCOM ROS
User Guide for the RUGGEDCOM RS900GF.
The following shows the proper relay connections.
Figure 5: Failsafe Alarm Relay Wiring
1. Normally Closed 2. Common 3. Normally Open
Section 2.6
Connecting Power
The RUGGEDCOM RS900GF features an integrated high AC/DC or low DC power supply that accepts input from
redudant power sources.
NOTE
Power sources can be connected to either power supply terminal block on the device.
IMPORTANT!
• For 110/230 VAC rated equipment, an appropriately rated AC circuit breaker must be installed.
• For 125/250 VDC rated equipment, an appropriately rated DC circuit breaker must be installed.
• Use only #16 gage copper wiring when connecting terminal blocks.
Connecting the Failsafe Alarm Relay
1
2
3
Chapter 2
Installing the Device
9
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