Installing A Dc Power Supply - Dell S5000 Getting Started Manual

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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.

CAUTION: DO NOT mix airflow directions. The airflow directions are color coded. A red label indicates that hot air

is expelled from the PSU and a blue label indicates that hot air is expelled from the I/O. Both fans must use the

same airflow direction (I/O to Utility or Utility to I/O). The power supplies and fans must have the same color strap.

If you mismatch the airflows, the following error message appears and the system shuts down:

00:02:19: %S5000:0 %CHMGR-2-PSU_TYPE_AIRFLOW_MISMATCH: Mismatching PSU

airflow detected. Unit 0 shall get shutdown in next 60 seconds if mismatch

not rectified. 00:02:19: %STKUNIT0-M:CP %CHMGR-1-

PSU_AIRFLOW_COMBO_MISMATCH: Major alarm: Mismatching PSU airflow detected

in unit 0

Installing a DC Power Supply

Remove the PSU from the electro-static bag.

Use the grab handle to slide the PSU into the switch PSU slot (install the PSU-exposed PCB edge connector first).

The PSU slot is keyed so that the PSU can be fully inserted in only one way. When you correctly install the PSU, it

snaps into place and is flush with the back of the switch.

Figure 18. Installing a DC Power Supply

1. Slot 0 (for DC PSU 0)

2. Release latch

Strip the insulation from the ends of the DC power wires, exposing approximately 13 mm (0.5 inch) of copper wire.

WARNING: Reversing polarity when connecting DC power wires can permanently damage the power supply

or the system.

Insert the copper ends into the mating connectors and tighten the captive screws at the top of the mating

connector using a #2 Phillips screwdriver.

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