Extreme Networks Summit X150 Series Hardware Installation Manual page 130

Figure 122: EPS-150DC Redundant Power Cord Connector
EPS-C2 Redundant Power System
The EPS-C2 is an external power supply system that supplies redundant power to Summit switches.
It is a standalone unit that can be rack mounted in a regular 19-inch rack system. The EPS-C2 can be
populated with up to three Summit 750W PoE AC PSUs (power supply units) to provide a total
redundant power budget of up to 2040W. The redundant power supply system can connect up to five
Summit X440s to actively provide power to all five if needed.
The EPS-C2 redundant power system consists of the EPS-C2 chassis (Model 10936) plus one, two, or
three installed Summit 750 W AC power supplies (Model 10931). For more information about the 750 W
AC power supply including LED meanings, see
The EPS-C2 system is compatible with the following Extreme Networks switches:
•
Summit X440-24t switch
•
Summit X440-24t-10G switch
•
Summit X440-24p switch
•
Summit X440-24p-10G switch
•
Summit X440-48t switch
•
Summit X440-48t-10G switch
•
Summit X440-48p switch
•
Summit X440-48p-10G switch
•
Summit X450e-48p switch
•
Summit X250e-48p switch
The EPS-C2 system provides redundant power for up to five Summit X440 series switches or for a
single Summit X450e-48p or Summit X250e-48p switch. Redundant power connectors on the rear
panel of the EPS-C2 chassis are specific to the supported switch type; a selection switch toggles
between the connector type. There are five 2x7 connectors used for the Summit X440 switches, and
one 2x9 connector for the other Summit switches.
The 750W AC PoE PSU used on the EPS-C2 has two power rails: 12V and PoE. These two power rails
are independent. If the PoE rail overloads, it will shut down all PoE but the 12V rail will continue to
function. If the 12V rail overloads, the 12V shuts down and the PoE rail will continue to function.
One redundant 2x7 power cable is shipped with the EPS-C2 chassis to provide the connection between
the external power system and the redundant power input connector on the back of a switch.
Additional redundant power cables are available from Extreme Networks.
Summit Family Hardware Installation Guide
Summit 750-Watt AC Power
Summit Power Supplies
Supply.
130