Installation Guide

The rear panel provides an AC power input socket or DC input connector; 24-port and 48-port switch
models also include a redundant power connector. The switch automatically adjusts to the supply
voltage. The redundant power connector allows you to connect the switch to the EPS-C2 external
power system. When a compatible external power supply is used with the Summit X440 series switch,
the internal and external power supplies are fully fault tolerant. If one power supply fails, the other
power supply will provide sucient power to operate the switch.
Most Summit switches have fans that can change speeds depending upon operating conditions. See
Summit X440 Series Switches Technical Specifications on page 545 for specifications.
The Summit X440 series switches include the following models:
• Summit X440-8t Switch Ports and Slots on page 58
• Summit X440-8p Switch Ports and Slots on page 60
• Summit X440-24t Switch Ports and Slots on page 61
• Summit X440-24tDC Switch Ports and Slots on page 62
• Summit X440-24t-10G Switch Ports and Slots on page 63
• Summit X440-L2-24t Switch Ports and Slots on page 64
• Summit X440-24x Switch Ports and Slots on page 65
• Summit X440-24x-10G Switch Ports and Slots on page 67
• Summit X440-24p Switch Ports and Slots on page 68
• Summit X440-24p-10G Switch Ports and Slots on page 69
• Summit X440-48t Switch Ports and Slots on page 71
• Summit X440-48tDC Switch Ports and Slots on page 72
• Summit X440-48t-10G Switch Ports and Slots on page 73
• Summit X440-L2-48t Switch Ports and Slots on page 74
• Summit X440-48p Switch Ports and Slots on page 76
• Summit X440-48p-10G Switch Ports and Slots on page 77
The minimum required ExtremeXOS version for Summit X440 series switches varies by model. (See the
Extreme Hardware/Software Compatibility and Recommendation Matrices for details.) The ExtremeXOS
version cannot be greater than 16.x.
Summit X440-8t Switch Ports and Slots
The front panel of the Summit X440-8t switch includes:
• Eight
fixed autosensing 10/100/1000BASE-T ports (ports 1–8) that provide 8 Gbps of high-density
copper connectivity
• Four unpopulated SFP ports (ports 9–12) that provide 4 Gbps of fiber connectivity. The SFP ports
support both 100BASE-FX and 1000BASE-X optical modules.
For information about SFPs, see the Extreme Networks Pluggable Interface Modules Installation
Guide.
• Two high-performance stacking ports with associated LEDs
• Ethernet management port.
Summit X440-8t Switch Ports and Slots
Summit Switches
58 Summit Family Hardware Installation Guide