HU-PYXIS
18
PYXIS
System User Guide
3.2.2.1
The 1U Fan Module (1946)
The 1946 1U Fan Module mounts on the door of the 1U frame. The Fan Module provides monitoring
of the fans fitted on the door, and also carries the status LEDs that show through the door.
A ribbon cable from the motherboard provides power to the 1946 Fan Module. The 1946 supplies
power to the fans on the door, monitors the status of the fans and provides a combined error signal
back to the controller. An LED on the door also reflects the fan status. The 1946 fan module is fitted
with the following LEDs which are visible through the door.
LED Function
Source
Power 1 OK Green = PSU 1 OK 9005 1U motherboard
Power 2 OK Green = PSU 2 OK 9005 1U motherboard
Fans OK
Green = fans OK
Red = fan failure
1946 fan module
Table 5: Front Door LEDs (1U)
3.2.3 1U Power Supply
The 1U frame uses an external power supply unit. They are non-repairable units with no internal
serviceable items. A second PSU may be fitted for redundancy.
The power supplies contain dangerous high voltages.
There are no serviceable items.