Dell Networking S5000 Handbuch Zum Einstieg Seite 29

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 chapters of the
Reference Guide for the S5000 Switch and FTOS Configuration Guide for 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.
WARNING: The PCB edge connector is at the bottom of the switch. Avoid installing
the switch upside down.
WARNING: Electrostatic discharge (ESD) damage can occur if components are
mishandled. Always wear an ESD-preventive wrist or heel ground strap when
handling the S5000 and its components.
4. Spring washer
5. #6–32 nut
FTOS Command Line
27