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Cisco Nexus 5600 Series Hardware Installation Guide
Chapter 1 Overview
Cisco Nexus 56128P
Caution Never leave a power supply bay empty. If you remove a power supply, replace it with another one. If you
do not have a replacement power supply, leave the non functioning one in place until you can replace it.
Fan Modules
The Cisco Nexus 56128P has four fan modules. Fan modules are hot-swappable. Fan modules operate
in a N+1 redundancy mode. Fan options need to be configured with the base chassis when ordering. The
Cisco Nexus 56128P switch supports port-side exhaust and port side intake. Online Insertion and
Removal (OIR) is supported on the fan tray. The following table lists the fans that you can order with a
Cisco Nexus 56128P switch.
Figure 1-11 View of Cisco Nexus 52128P Fans
Note You must order all fan modules and power supplies in the same chassis so that they have the same
direction of airflow with cooler air entering the chassis from the cold aisle and exhausting to the hot
aisle. To change the airflow direction of the chassis, you must power down the switch before swapping
out all fan and power supply modules.
NXA-PHV-1100W-B Cisco Nexus 5500/6000 Platinum HV-AC-DC PS, Port side Intake
airflow, 1100W
NXA-PHV-1100W-B(=) Cisco Nexus 5500/6000 Platinum HV-AC-DC PS, Port side Intake
airflow, 1100W, spare
Table 1-13 Supported Power Supply for Cisco Nexus 56128P
Part Number Power Supply
Table 1-14 Fan Modules for Cisco Nexus 52128P
Part Number Details
N56128-FAN-F Cisco Nexus 56128P Fan Module, Port Side Exhaust
N56128-FAN-F= Cisco Nexus 56128P Fan Module, Port Side Exhaust, spare
N56128-FAN-B Cisco Nexus 56128P Fan Module, Port Side intake
N56128-FAN-B= Cisco Nexus 56128P Fan Module, Port Side intake, spare
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