Extreme Networks Power Supply Units for BlackDiamond Switches
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
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Leave the ESD strap permanently connected to the switch, so that the strap is always available when you need to
handle ESD-sensitive components.
LEDs
The front panel of the Extreme Networks 325 W DC PSU provides status LEDs. Table 20 describes the
meanings of these LEDs.
Table 22: Extreme Networks 325 W DC PSU front panel LED indications
Fuse
The Extreme Networks 325 W DC PSU line is fused. This fuse is not replaceable in the field. In the
event of failure, immediately return the Extreme Networks 325 W DC PSU for a complete replacement.
Field operators must not attempt to configure or replace fuses inside Extreme Networks 325 W DC PSUs! In the
event of failure, immediately return the defective Extreme Networks 325 W DC PSU for a complete replacement.
Specifications
The 325 W DC PSU functions from 40 V to –72 V DC input. The software determines the maximum
available power required for the switch and enables the modules accordingly.
The 325 W DC PSU does not have a switch for turning the unit on and off. Remove DC power by de-energizing the
DC power circuit.
Make sure that the 325 W DC PSU circuit is not overloaded. Use proper over-current protection, such as a
circuit-breaker, to prevent over-current conditions.
PSU Condition
DC In
LED Status
DC Out
LED Status
No DC input power Off Off
No DC input power (receiving standby power from the chassis) Amber Off
DC input good (main outputs disabled) Green Off
DC input good, output fault Green Amber
DC input good, DC output good Green Green