Dell Networking S5000 Handbuch Zum Einstieg Seite 25

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. 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 power supplies 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 an AC Power Supply
1. Remove the PSU from the electro-static bag.
2. 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 install the PSU correctly, it snaps into
place and is flush with the back of the switch.
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