Aruba S2500 - PoE; SFP and SFP+ Modules

Aruba S2500 Series Mobility Access Switch | Installation Guide S2500 Mobility Access Switch | 19
 580W Power Supply: This power supply has two voltage rails, one at 12V and the other at 56V, and is
capable of supporting PoE.
PoE
The S2500-P models support PoE (802.3af) and PoE+ (802.3at) to provide power to connected devices. PoE/
PoE+ is enabled by default to provide plug and play capability for PoE capable devices. The S2500 has three
PoE Management Modes:
 Dynamic Mode: This the default mode. The per port power budgeted from the total power supplied from
the PSUs is equal the amount of power consumed by the port.
 Static Mode: The amount of power used by a specific port is the maximum power configured on that
port by the user. This mode ensures that the maximum power specified by the user is reserved and not
shared with other ports.
 Class-based Mode: The power allotted to the port is the maximum amount of power for the class of
powered device connect to that port.
PoE Priority
If the S2500 experiences a reduction in power while the entire power pool is being used, the S2500 will
begin disabling ports based on port priority until the required power is available again. Ports with a lower
priority will stop receiving power before ports of a higher priority. Port priority can be configured by the
user to ensure that necessary devices have power whenever possible. However, if any number of ports have
the same priority, ports with the higher interface number will stop receiving power first.
For example:
If interface 0/0/4 and interface 0/0/10 have the same priority but there is not enough power for both, the
S2500 will eliminate 0/0/10 first.
SFP and SFP+ Modules
SFP Modules, also known as mini-GBICs, are hot-swappable Gigabit Ethernet transceivers that provide
optical or copper connections to other devices.
For more information on PoE and PoE management, see the latest ArubaOS User Guide for Mobility Access Switch.
Aruba tests and supports Aruba approved optics within their mobility access switch systems. Non-approved, third
party optics are not tested or supported; therefore, Aruba does not guarantee proper functionality of non-approved,
third party optics when used in an Aruba system. For a complete list of Aruba approved optics, contact your Aruba
sales representative.
Table 14 Supported SFPs
SFP Description
SFP-SX Aruba SFP, 1000BASE-SX, LC Connector
SFP-LX Aruba SFP, 1000BASE-LX, LC Connector
SFP-TX Aruba SFP, 1000BASE-T, RJ-45 Connector
SFP-10G-SR Aruba SFP+, 10GBASE-SR, 850nm serial pluggable SFP+ optic, LC Connector