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Chapter 2
Installing Device
Figure 10: Dual DC Power Supply
Figure 11: Dual AC/DC Power Supply
Section 2.3
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 ROS User Guide for
the RS1600.
The following shows the proper relay connections.
12
THISDEVICECOMPLIESWITH PART15OF
FAILSAFE
THEFCCRULES. OPERATION ISSUBJECTTO
THEFOLLOWINGTWOCONDITIONS: (1) THIS
DEVICEMAYNOTCAUSEHARMFUL
INTERFERENCE, AND (2) THISDEVICEMUST
ACCEPTANYINTERFERENCERECEIVED,
INCLUDINGINTERFERENCETHATMAYCAUSE
+/H
-/N
UNDESIRED OPERATION.
POWERSUPPLY1
THISDEVICECOMPLIESWITH PART15OF
FAILSAFE
THEFCCRULES. OPERATION ISSUBJECTTO
THEFOLLOWINGTWOCONDITIONS: (1) THIS
DEVICEMAYNOTCAUSEHARMFUL
INTERFERENCE, AND (2) THISDEVICEMUST
ACCEPTANYINTERFERENCERECEIVED,
INCLUDINGINTERFERENCETHATMAYCAUSE
+/H
-/N
UNDESIRED OPERATION.
POWERSUPPLY1
RS232PORT
+/H
-/N
POWERSUPPLY2
RS232PORT
+/H
-/N
POWERSUPPLY2
Connecting the Failsafe Alarm Relay
RUGGEDCOM RS1600
Installation Guide
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