Fan and power supply airflow
All fans and power supply FRUs installed in this device must have either NPI (nonport-side intake) or NPE (nonport-side exhaust) airflow.
You must order a replacement FRU with the same part number (P/N) as the FRU being replaced to provide the same airflow. The
manufacturing P/N, located on the top of the FRU, contains either NPI or NPE. If a mismatched power source or fan assembly is
installed by mistake, a RASlog message occurs indicating that a mismatch in fan or power supply airflow has occurred and the FRU is
faulted.
NOTE
If airflow direction for a power supply assembly does not match the chassis airflow direction as stored on WWN cards, the
power supply will have a "fault" status. However, LED operation for the power supply will not indicate a fault. If airflow direction
for a fan assembly does not match the chassis airflow direction, the fan LED will indicate a fault condition.
Power supply and fan assemblies are labeled with a green "E" or orange "I" airflow symbol. All fans and power supplies in a chassis must
have the same label affixed to guarantee airflow direction is consistent.
FIGURE 70
Airflow labels
The orange
I
symbol indicates an intake FRU. This unit pulls air in from the nonport side of the device and exhausts it out the port side.
This symbol should appear on FRUs with part numbers that contain an
NPI
.
The green
E
symbol indicates an exhaust FRU. This unit pulls air in from the port side of the device and exhausts it out the nonport side.
This symbol should appear on FRUs with part numbers that contain an
NPE
.
Ensure airflow direction of power supply and fan assemblies match. If power supply or fan air flow direction does not match, the FRU will
fault. Faulty fans can cause increase in temperature.
Fan assembly overview
Brocade X6-4 Director Hardware Installation Guide
190
53-1004106-07
Summary of Contents for X6-4
Page 12: ...Brocade X6 4 Director Hardware Installation Guide 12 53 1004106 07...
Page 20: ...Brocade X6 4 Director Hardware Installation Guide 20 53 1004106 07...
Page 28: ...Brocade X6 4 Director Hardware Installation Guide 28 53 1004106 07...
Page 64: ...Brocade X6 4 Director Hardware Installation Guide 64 53 1004106 07...
Page 86: ...Brocade X6 4 Director Hardware Installation Guide 86 53 1004106 07...
Page 102: ...Brocade X6 4 Director Hardware Installation Guide 102 53 1004106 07...
Page 130: ...Brocade X6 4 Director Hardware Installation Guide 130 53 1004106 07...
Page 140: ...Brocade X6 4 Director Hardware Installation Guide 140 53 1004106 07...
Page 166: ...Brocade X6 4 Director Hardware Installation Guide 166 53 1004106 07...
Page 196: ...Brocade X6 4 Director Hardware Installation Guide 196 53 1004106 07...
Page 200: ...Brocade X6 4 Director Hardware Installation Guide 200 53 1004106 07...
Page 204: ...Brocade X6 4 Director Hardware Installation Guide 204 53 1004106 07...
Page 210: ...Brocade X6 4 Director Hardware Installation Guide 210 53 1004106 07...
Page 224: ...Brocade X6 4 Director Hardware Installation Guide 224 53 1004106 07...
Page 238: ...Brocade X6 4 Director Hardware Installation Guide 238 53 1004106 07...