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Cisco Nexus 3000 Series Hardware Installation Guide
OL-25338-04
Chapter 1 Overview of the Cisco Nexus 3000 Series Switches
Cisco Nexus 3048 Switch
Cisco Nexus 3048 Switch
The Cisco Nexus 3048 switch is a 1 rack unit (RU) switch that supports 48 fixed 10/100/1000 Ethernet
downlink (server-facing) ports, four fixed 10-Gigabit Ethernet uplink (network-facing) ports, two fixed
100/1000 management ports, and one console port. The switch includes one or two AC or DC power
supply units and one fan tray module, both of which provide either forward or reverse airflow for
cooling. The switch includes a Layer 3 license. To order the appropriate Cisco Nexus 3048 switch
bundle, see Ta ble 1-4.
This section includes the following topics:
• Chassis for the Cisco Nexus 3048 Switch, page 1-6
• Ports for the Cisco Nexus 3048 Switch, page 1-8
• Power Supply for the Cisco Nexus 3048 Switch, page 1-9
• Fan Tray for the Cisco Nexus 3048 Switch, page 1-10
• Port Connections for the Cisco Nexus 3048 Switch, page 1-10

Chassis for the Cisco Nexus 3048 Switch

The 1-RU Cisco Nexus 3048 chassis (part number N3K-C3048TP-1GE) is 1.72 inches (4.37 cm) high,
17.3 inches (43.9 cm) wide, and 19.7 inches (50.8 cm) deep. This switch is designed for 19-inch (48.3
cm) racks. Its switch ports are at the rear of the chassis in close proximity to server ports, and the power
supplies and fan tray forward airflow or reverse airflow depending on whether the front of the switch is
on a cold aisle (forward airflow) or on a hot aisle (reverse airflow). You can also order the switch with
AC or DC power supplies.
Fully populated with two power supplies and a fan tray, the switch weighs 20.5 pounds (9.3 kg) and can
be easily installed by one or two people.
Figure 1-3 shows the front of the Cisco Nexus 3048 chassis and identifies the components that you use
to install and connect the chassis. Figure 1-4 shows the rear of the chassis and identifies the components
that you use to install and connect the chassis.
Tab l e 1-4 Cisco Nexus 3048 Switch Bundles
Power Supply Airflow Direction Layer 3 License Part Number
Select when ordering Select when ordering No N3K-C3048TP-1GE
AC Forward Yes N3K-C3048-FA-L3
AC Reverse Yes N3K-C3048-BA-L3
DC Forward Yes N3K-C3048-FD-L3
DC Reverse Yes N3K-C3048-BD-L3