Extreme Networks BlackDiamond 8800 Series - Fuse; Specifications

Extreme Networks 700/1200 W AC PSU
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
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WARNING!
Always be sure that the source outlet is properly grounded before plugging the AC power cord into the Extreme
Networks 700/1200 W AC PSU.
Fuse
The Extreme Networks 700/1200 W AC PSU line and neutral legs are both fused. Power to the switch
may still be live if the neutral fuse is open. This is not a field operator replaceable fuse. In the event of
failure, immediately return the Extreme Networks 700/1200 W AC PSU for a complete replacement.
WARNING!
Field operators must not attempt to configure or replace fuses in Extreme Networks 700/1200 W AC PSUs! In the
event of failure, immediately return the defective Extreme Networks 700/1200 W AC PSU for a complete
replacement.
Specifications
The 700/1200 W AC PSU functions from 90 V to 264 V and 47 Hz to 63 Hz AC Input. Each PSU
provides 700 W to the system if the AC input is in the 110 V low-line output power range and 1200 W
to the system if the AC input is in the 220 V high-line output power range.
A greater number of PSUs are needed to support the load if the low-line power range is used to power
the switch. The software determines the maximum available power required for the switch and enables
the modules accordingly.
When a mixture of AC PSU types, the 600/900 W AC PSU and the 700/1200 W AC PSU, are powered
on in the same BlackDiamond 8806 chassis, all PSUs will be budgeted “down” to the lower powered
600/900 W AC output values to avoid PSU shutdown due to over-current. ExtremeXOS optimizes total
system power, avoiding the possibility of over-current, by deciding whether to budget down PSUs with
220 V AC inputs when PSUs with 110 V AC inputs are present, or to keep 110 V AC PSUs disabled.
CAUTION
Even though this process avoids the possibility of over-current, an I/O module may be powered off if a 600/900 W
AC PSU is added to a BlackDiamond 8806 system running in the following configuration:
● System is powered by three 700/1200 W AC PSUs at 220 V AC.
● System includes four or more PoE I/O modules with a PoE power requirement that falls between 2391 W and
2438 W of inline power.
To avoid causing an I/O module to be powered off, do not add a 600/900 W AC PSU to an existing BlackDiamond
8806 system running in the configuration listed above. Extreme Networks also recommends that you avoid mixing
220 V AC and 110 V AC inputs when both PSU types, 600/900 W and 700/1200 W, are present. When a
combination of 220 V AC and 110 V AC inputs is applied, ExtremeXOS is designed to optimize total chassis power
for each individual PSU type but not for a mixture of PSU types.