Owners Manual

Back-panel features and indicators
Figure 5. Back-panel features and indicators
Item Indicator, Button, or Connector Description
1 Power supply unit or cooling fan module
(PS1)
600 W power supply.
For more information, see Power indicator codes.
2 Primary enclosure management module
(EMM 0)
The EMM provides:
• a data path between the enclosure and the host server.
3 Secondary EMM (EMM 1) • enclosure management functions for your enclosure.
4 Information tag A slide-out label panel, which allows you to record Service Tag.
5 Power switches (2) The power switch controls the power supply output to the enclosure.
6 Power supply unit or cooling fan module (PS
2)
600 W power supply.
For more information, see Power indicator codes.
Enclosure Management Module
Each EMM provides the following data path and enclosure management functions for your enclosure:
• Monitoring and controlling enclosure environment elements such as temperature, fan, power supply units, and enclosure LEDs.
• Controlling access to hard disk drives.
• Communicating enclosure attributes and states to the host server.
NOTE:
At least one EMM must be installed in the enclosure. If only one EMM is installed in the enclosure, it must be
installed in the primary EMM bay and a blank must be installed in the secondary EMM bay. See Installing an EMM blank .
Figure 6. Enclosure Management Module
8
About your enclosure