Installation Guide

The rear panel of the Summit X440-48tDC switch includes:
• Two high-performance stacking ports with associated LEDs.
• Redundant power input connector for optional connection to the EPS-C2 External Power Module
The connecting redundant power supply cable is shipped with the power module unit. See Installing
an EPS-C2 Power Supply on page 380 for more information.
• DC power input connectors. The DC power supply operates at -48V.
1
2
3
2.0
Figure 58: Summit X440-48tDC Switch Rear Panel
1 = DC power input connectors 3 = Redundant power connector
2 = Stacking ports
Summit X440-48t-10G Switch Ports and Slots
The front panel of the Summit X440-48t-10G switch includes:
• Forty-eight fixed autosensing 10/100/1000BASE-T ports (ports 1–48) that provide 48 Gbps of high-
density copper connectivity.
• Two unpopulated SFP ports (ports 47 and 48) that provide 2 Gbps of
fiber connectivity. The SFP
ports support both 100BASE-FX and 1000BASE-X optical modules.
Ports 47 and 48 are implemented as shared ports that pair a copper port with a fiber port. For more
information about combination ports, see Combination Ports and Failover on page 25.
For information about SFPs, see the Extreme Networks Pluggable Transceivers Installation Guide.
• Two unpopulated SFP+ ports (ports 49 and 50) that provide 20 Gbps of fiber connectivity.
• Ethernet management port.
• Serial console port implemented as an RJ45 connector, used to connect a terminal and perform local
management.
• LEDs to indicate port status and switch operating conditions.
For a description of the LEDs and their operation, see Summit X440 Series Switch LEDs on page
78.
Summit Switches
Summit X440-48t-10G Switch Ports and Slots
Summit Family Hardware Installation Guide 73