Extreme x250e-24t Installation Instruction

Summit Family Switches Hardware Installation Guide

The Summit X250e-48p switch is powered by both an internal power supply and an optional external 
redundant power supply system.

The internal Summit X250e-48p internal power supply is capable of 370 W of PoE power. It supplies 
15.4 W to each port for a 24-port configuration and 7.7 W to each port for a 48-port configuration or any 
combination of ports where total PoE power does not exceed 370 watts. 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 off ports when not enough PoE power 
is available 

A full discussion of these concepts can be found in the ExtremeXOS 12.0 Concepts Guide, Power over Ethernet 
section. 

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. 

The PoE capability of the Summit X250e-48p varies depending on the number of external power 
modules in use. 

 summarizes the PoE power behavior for the Summit X250e-48p switch based on 

the number of power supply modules in use.

For specifications and installation instructions for the external power module, see 

.

370 W of 
redundant power

740 W of 
external power only

Internal power supply 
disabled

740 W of 
external power only 
with 2:1 redundancy

Internal power supply 
disabled

370 W of 
internal power only

370 W of 
external power only

740 W of 
external power only

740 W of 
external power only 
with 2:1 redundancy

No PoE power