Ports; Power Supplies; Chassis - Cisco Nexus 2000 Series Hardware Installation Manual

Cisco Nexus 2248PQ
You can order front-to-back airflow or back-to-front airflow for cooling. If you are going to install the
chassis with its front end facing the cold aisle, you must order the chassis with front-to-back air flow. If
you are going to install the chassis with its back end facing the cold aisle, you must order the chassis
with back-to-front airflow.

Ports

The Cisco Nexus 2248PQ FEX supports a total of 48 1/10-Gigabit Ethernet/Fibre Channel over Ethernet
(FCoE) ports (SFP+) and 4 QSFP+ (16 10-Gigabit ) fabric ports. The Cisco Nexus 2248PQ provides two
types of ports: ports for end-host attachments and uplink ports. Uplink ports are differentiated with
yellow for connectivity to the upstream parent Cisco Nexus 5000 Series switch.
The Cisco Nexus 2248PQ 10GE Fabric Extender supports FCoE and Data Center Bridging (DCB) which
increases the reliability, efficiency, and scalability of Ethernet networks by allowing the switches to
support multiple traffic classes over a lossless Ethernet fabric, enabling consolidation of LAN, SAN, and
cluster environments.

Power Supplies

The Cisco Nexus 2248PQ FEX chassis has two bays for front-end AC or DC power supplies. This chassis
is fully functional with one power supply, but you can install a second power supply for power
redundancy. The power supply is hot swappable during operations.
Table 1-9
Table 1-9
Power Supply
AC power supply with front-to-back airflow
AC power supply with back-to-front airflow
DC power supply with front-to-back airflow
DC power supply with back-to-front airflow
Figure 1-12 on page 1-12
page 1-13
power supply with front-to-back airflow.
You can order the Cisco Nexus 2248PQ FEX with AC power supplies that have front-to-back or
back-to-front airflow for cooling or DC power supplies that have front-to-back airflow. The
back-to-front airflow components have a black stripe on their front surface for easy visual identification.
The front-to-back airflow components do not have a black stripe.
Table 1-5 on page 1-12
FEXs.
Cisco Nexus 2000 Series Hardware Installation Guide
1-18
lists the power supplies that you can order with the Cisco Nexus 2248PQ FEX.
Power Supplies for the Cisco Nexus 2200 Platform Chassis
shows an AC power supply with front-to-back airflow.
shows an AC power supply with back-to-front airflow.
lists the power supplies that you can order with the Cisco Nexus 2200 Platform
Chapter 1 Using a Fabric Extender with a Cisco Nexus 5000 Series Switch
Part Number
N2200-PAC-400W
N2200-PAC-400W-B
N2200-PDC-400W
N2200-PDC-350W-B
Figure 1-14 on page 1-13
Figure 1-13 on
shows a DC
OL-19013-05