Installation guide

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Figure 49 Airflow through the chassis (with LSVM1FANSCB fan trays)
(1) Fan tray air vents (2) Power supply air vents
(3) Network port-side air vents
IMPORTANT:
The chassis and the power supplies use separate air aisles. Make sure both aisles are not blocked.
HP 5900 cooling system
Table 26 describes fan trays available for the HP 5900 switches.
Table 26 Compatibility matrix between the HP 5900 switch models and fan trays
Fan tray HP 5900 switch model
• LSWM1FANSC
• LSWM1FANSCB
• HP 5900AF-48XG-4QSFP+
• HP 5900AF-48XG-4QSFP+ TAA
• HP 5900CP-48XG-4QSFP+
• HP 5900CP-48XG-4QSFP+ TAA
• HP 5900CP-48XG-4QSFP+8Gb FC B-F
• HP 5900AF-48G-4XG-2QSFP+
• HP 5900AF-48G-4XG-2QSFP+ TAA
• LSWM1HFANSC
• LSWM1HFANSCB
• HP 5900AF-48XGT-4QSFP+
• HP 5900AF-48XGT-4QSFP+ TAA
You must install fan trays of the same model on the same switch.
When LSWM1FANSC/LSWM1HFANSC fan trays are used, cool air flows in through the air vents in the
fan tray panel and the power supply panels, circulates through the chassis and the power supplies, and
exhausts at the network port side, as shown in Figure 50.
W
hen LSWM1FANSCB/LSWM1HFANSCB fan trays are used, cool air flows in through the air vents in
the network port-side panel and the power supply panels, circulates through the chassis and the power
supplies, and exhausts through the air vents in the fan tray panels, as shown in Figure 51.
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