Inserting a PSU
1. Ensure the PSU is switched off.
2. Rotate the PSU so that the red release latch and handle are on the left side.
3. Slide the PSU into its slot until the latch clicks home.
4. Connect the AC power cord.
5. Turn on the PSU power switch.
6. Wait for the “Power OK” LED on the newly inserted PSU to turn on. If the "Power OK" LED does not
turn on, the PSU was not inserted properly or is defective. Otherwise, the enclosure will automatically
detect the new unit.
Replacing an SBB I/O module
The process involves removing the existing module and inserting a new one.
Important: Before removing an SBB I/O module, make sure you have a replacement module to insert.
Removing an SBB I/O module
1. Identify the SBB I/O module to be removed. If the module failed, the fault LED is lit in an amber
color.
2. Make a note of the locations of the cables before removing them from the I/O module.
3. As shown in the following two figures, pinch the latch on the module and pull the handle towards
you (1). This action levers the module out of its connector on the midplane.
Figure 39. SBB I/O module LEDs
46 Installation and User Guide - Model 084
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