Installation Guide

Figure 22: Summit X250e-48p Switch Rear Panel
Summit X250e-48p Power Supplies
The Summit X250e-48p switch is powered by both an internal power supply and an optional external
redundant power supply system.
Internal Power Supply
The Summit X250e-48p internal power supply can provide 370 W of PoE power, as follows:
• In a 24-port configuration, it provides 15.4 W to each port.
• In a 48-port configuration or any combination of ports where total PoE power does not exceed 370
watts, it provides 7.7 W to each port.
If the total system demands exceed this power limit, you can specify one of the following:
• Port priorities to identify which ports should be ranked higher when allocating power
• Port disconnect precedence to specify the method of shutting
o ports when not enough PoE
power is available
Note
For a detailed discussion of these concepts, see the Power over Ethernet section in the
ExtremeXOS 22.6 User Guide.
External Power Supplies
The EPS-600LS External Power Module provides optional redundant power for the Summit X250e-48p
switch.
Through the redundant power input connector on the rear panel, the switch can be powered by one,
two, or three external power modules installed in the EPS-C External Power Supply Chassis.
Summit X250e-48p Power Supplies
Summit Switches
42 Summit Family Hardware Installation Guide