Rear view
This section identifies the components, connectors, and LEDs on the rear of the
BladeCenter unit.
I/O module bay 4
I/O module bay 3
I/O module bay 2
I/O module bay 6
I/O module bay 1
I/O module bay 7
I/O module bay 9
I/O module bay 8
I/O module bay 10
I/O module bay 5
Power connector 2
Power connector 1
Management
module 1
Management
module bay 2
Blower module 1
Blower module 1
error LED
Blower module 2
error LED
Blower module 2
Rear system
LED panel
Serial connector
Power connectors
Connect a power cord from each power connector to a 220-volt power distribution
unit or appropriate electrical outlet. See your specific power cable document for
more information.
I/O modules
See the documentation that comes with each I/O module for a description of the
LEDs and connectors on the I/O module.
Management modules
See the documentation that comes with each management module for a description
of the LEDs and connectors on the module.
Blower modules
When the amber LED on a blower module is lit, an error has been detected in the
blower or power to the blower is not present. The system-error LEDs on the
BladeCenter system LED panels are also lit.
Serial connector
This connector provides direct access to the serial ports on each of the 14 blade
server bays. Use this connector to attach the optional serial port breakout cable and
connect up to 14 local consoles. See the documentation supplied with your blade
server to see if it supports this cable.
Rear system LED panel
The LEDs on this panel provide status information. These LEDs duplicate the LEDs
in the front system LED panel (see “Front system LED panel” on page 13 for more
information).
Chapter 2. BladeCenter unit power, controls, and indicators 15
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