Important Points To Remember For Installing A Dc Power Supply - Dell S5000 Getting Started Manual

Figure 17. Assembling and Connecting the Safety Ground Wire For DC Power Supply
1. Safety ground wire
2. Grounding post
3. Locking washer

Important Points to Remember for Installing a DC Power Supply

• When using DC power supply, peel off the DC electrical label and place it on the main regulatory label found on
the bottom of the S5000 chassis. Position this label over the AC electrical ratings within the dashed outline.
• The PSU slides into the slot smoothly. Do not force a PSU into a slot as this action may damage the PSU or the
S5000 chassis.
• The S5000 supports AC and DC power supplies with two air-flow directions (I/O to Utility and Utility to I/O). The
S5000 does not support mixing PSU types, that is, you cannot replace an AC PSU with a DC PSU and an AC-R
PSU with a DC-R PSU. The fan airflow direction for both the PSUs must be the same.
• For DC PSUs, the power status LED is on the upper-left corner.
• A DC PSU must be properly grounded. The system does not work when plugged into the wrong power source
polarity.
• To view the log messages, use the show logging command. For more information, refer to the System Logs
FTOS Command Line Reference Guide for the S5000 Switch and FTOS Configuration Guide for the
chapters of the
S5000 Switch .
WARNING: Although the switch can run on one PSU, Dell Networking highly recommends using two PSUs for full
redundancy and proper cooling. If the switch needs to run with only one PSU for a time, be sure to cover the
second PSU slot opening with a blank plate to avoid overheating.
WARNING: The Utility panel consists of four slots numbered from 0 to 3. Insert PSUs in slots 0 and 3.
4. Spring washer
5. #6–32 nut
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