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NetSure DC/DC Converter Module User Manual (UM1C24481500 / 11WA6101WB)
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Rev. G
17
Procedure
1.
Performing this procedure may activate external alarms. Do one of the following. If possible, disable
these alarms. If these alarms cannot be easily disabled, notify the appropriate personnel to disregard
any alarms associated with this system while this procedure is performed.
2.
Remove the converter module from the shelf. Refer to the previous procedure for step-by-step
instructions.
3.
Place the converter module on a static-safe work surface. Connect an approved grounding strap to your
wrist for the remainder of this procedure.
4.
Remove the four (4) faceplate mounting screws shown in
Figure 3
from the converter module. Remove
the faceplate.
5.
For proper orientation of the new fan(s), observe the location of the fan wires and the air flow arrows on
the old fan(s).
6.
Carefully pull the fan(s) out from the converter module, until the fan power cable(s) can be accessed.
7.
Unplug the fan power cable(s) from connector(s) on the PC board, and remove the fan(s).
8.
Plug the power cable(s) of the replacement fan(s) into the connector(s) on the PC board.
9.
Place the new fan(s) in the space vacated by the old fan(s) (ensure the fan wires and air flow arrows
match the orientation of the old fan), and plug it into the converter module.
10.
Replace the faceplate on the converter module. Note that each fan has four holes in the front corners
and that the faceplate has four tabs per fan. When replacing the faceplate, align the fan holes with the
faceplate tabs. Ensure that no fan wiring is pinched. Secure faceplate with the four (4) previously
removed screws.
11.
Replace the converter module into the shelf. Refer to the previous procedure for step-by-step
instructions.
12.
When the fans start, check to ensure that each is providing front-to-back airflow. If air direction is
wrong, immediately remove the converter module from the shelf. Repeat previous steps to check fan
orientation, and correct as necessary. Reinstall the converter module and again check for proper airflow.
13.
Enable the external alarms, or notify appropriate personnel that this procedure is finished.
14.
Ensure that there are no local or remote alarms active on the system.
