Summit X250e Series Switches
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
249
The rear panel on the Summit X250e-48p switch includes:
●
Management port
■
Used to connect the system to a parallel management network for administration.
OR
■
Used to connect an Ethernet cable directly from your laptop to the management port to view and
locally manage the switch configurations.
●
Two LEDs for the management port, located in the bottom corners of the port.
●
Two high-performance stacking ports with associated LEDs
●
Redundant power input connector for optional connection to an EPS-C chassis, which can hold up to
three EPS-600LS external power modules. The PoE capability of the Summit X250e-48p switch varies
depending on the number of external power modules in use. For complete details, see
“EPS-600LS
External Power Module” on page 328
. The connecting redundant power supply cable is shipped
with the EPS-C chassis.
●
AC power socket
The switch automatically adjusts to the supply voltage. The power supply operates from 100 VAC to
240 VAC.
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 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
NOTE
A full discussion of these concepts can be found in the
ExtremeXOS 12.0 Concepts Guide
, Power over Ethernet
section.
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.
The PoE capability of the Summit X250e-48p varies depending on the number of external power
modules in use.
Table 28
summarizes the PoE power behavior for the Summit X250e-48p switch based
on the number of power supply modules in use.
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