STK-RPS-150PS Redundant Power Supply


Extreme Redundant Power Supplies (RPS) do not support the ability for the RPS to be connected to an operational switch. Connecting an RPS to an operational switch can have an adverse effect on the switch. It is best practice that both the switch and the RPS be powered down prior to cabling them together. Once the cabling is completed, turn on the RPS, then turn on the switch.

The STK-RPS-150PS is a 150 watt DC power redundant power supply for use with Extreme Networks stackable or standalone fixed switch models that do not support PoE. The STK-RPS-150PS can be used as a standalone unit, or it can be installed into a two or eight slot shelf and then mounted in a standard 19-inch rack.

The STK-RPS-150PS system is compatible with the following switch models:
  • X440-G2-24t-10GE4 switch
  • X440-G2-24x-10GE4 switch
  • X440-G2-48t-10GE4 switch
  • X440-G2-24t-10GE4-DC switch
  • X440-G2-48t-10GE4-DC switch
  • X440-G2-12t8fx-GE4 switch
  • X440-G2-24fx-GE4 switch
  • X440-G2-24t-GE4 switch
  • X450-G2-24t-GE4 switch
  • X450-G2-24t-10GE4 switch
  • X450-G2-48t-GE4 switch
  • X450-G2-48t-10GE4 switch
  • X620-8t-2x switch
  • X620-10x switch
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STK-RPS-150PS LED Status Definitions

Power LED Meaning Recommended Action

Green, solid

AC input to power supply is within specifications



AC input power to power supply is out of specification.

  1. Check AC power cord connection to the power supply.
  2. Check AC power at the power outlet.
  3. Swap power cord for a known good one.
  4. If the problem persists, contact Extreme Networks for support.

For technical specifications, see STK-RPS-150PS and RPS Shelves Technical Specifications.