Rockwell Automation T7480 ICS Regent+Plus Guarded Analog Output Modules - Manual (Page 21)

Guarded Analog Output Modules (T7480)
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the module must be connected (using the I/O extender) to an
I/O chassis of an operational Regent system. It is
recommended that these tests are performed each time that
you calibrate the Guarded analog output module.
There are two diodes for each analog output channel that
must be tested for latent faults. In addition the fault
summary logic is exercised by injecting a fault. The locations
of the diodes and other necessary test and measurement
points for this procedure are shown in Figure 12.
The I/O extender module has jumper posts that allow you to
connect the six 250 Ohm termination resistors to the printed
circuit board plugged into the I/O extender. During the
calibration steps you will remove any jumpers installed on
these posts in order to connect the termination resistors to the
analog outputs. Figure 11 shows the jumper posts to which
you should connect the resistors for each analog output
channel.