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Power connectors
Connect a power cord from each power connector to an appropriate power source.
See "Supplying power to the BladeCenter HT unit" on page 13 for more information.
Fan modules
Fan module fault LED
When the amber LED on a fan module is lit, an error has been detected in the fan
module.
Alarm panel module
The alarm panel module provides telecom relays and LED alarm status with
additional functionality for access to a serial port on each blade server in the
chassis through an external breakout cable.
v Power-on: When this green LED is lit, power is present in the BladeCenter HT
v Location: When this blue LED is lit or flashing, it has been turned on by the
22
BladeCenter HT Type 8740 and 8750: Installation and User's Guide
Fan module orientation mark
Serial connector
unit. When this LED is off, the power subsystem, the power module, or the LED
has failed.
Attention:
If the power-on LED is off, it does not mean that no electrical
current is present in the BladeCenter HT unit. The LED might be defective. To
remove all electrical current from the BladeCenter HT unit, you must disconnect
all power cords from the rear power connectors.
system administrator, to aid in visually locating the BladeCenter HT unit. If a
Power-on LED
Location LED
Critical system fault LED
Major system fault LED
Minor system fault LED
FRU ready for removal LED
Alarm panel fault LED
Telco alarm connector
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