RUGGEDCOM MX5000
Installation Guide
Chapter 2
Installing the Device
Connecting the Failsafe Alarm Relay
13
2
1
Figure 7: Chassis Ground Connection
1.
#8-32 Screw
2.
#8 Ring Lug
Section 2.6
Connecting the Failsafe Alarm Relay
The failsafe relay on the Control Module (CM) 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.
2
1
3
Figure 8: Failsafe Alarm Relay Wiring
1.
Normally Open
2.
Common (Ground)
3.
Normally Closed
Pin
Function
NC
Normally Closed
Common
Ground
NO
Normally Open
Section 2.7
Connecting Power
The RUGGEDCOM MX5000 supports dual redundant AC and/or DC power modules that can be installed in any
combination.
