Fault mode jumper, Keying – Rockwell Automation T7454 ICS Regent+Plus AC Isolated Digital Output Module User Manual
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(T7454) AC Isolated Digital Output Module
 
P D - 7 0 1 8 M a r - 0 6  
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Fault Mode Jumper
The fault mode jumper is located behind the ID switch cover 
in the lower left-hand corner of each I/O chassis. The position 
of the fault mode jumper determines the module's response to 
system level faults. The fault mode jumper’s position will 
cause all output modules in the I/O chassis to either shutdown 
(turn off all outputs) or to hold (hold the last state) after a 
system level failure occurs. An example of a system level 
failure is the failure of two processor modules. 
Keying
The I/O chassis can be physically keyed to prevent accidental 
damage caused by inserting a module into a slot wired for a 
different module type. Figure 4 illustrates how the slot keys 
are installed on the I/O chassis slot field wiring connectors. 
The slot key positions for the AC isolated digital output 
module are listed in Table 1. 
Table 1. Slot Key Positions.
Module
Upper
Connector
Lower
Connector
T7454
16
2