Summit X450e Series Switches
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
275
Summit X450e-48p Power Supplies
Internal PSU.
The internal Summit X450e-48p PSU is capable of 370 W of PoE power: 15.4 W supplied
to each port for a 24 port configuration and 7.7 W supplied to each port for a 48 port configuration or
any combination of ports where total PoE power does not exceed 370 watts. If the total system demands
exceed this power limit, the user may specify:
●
Port priorities to identify which ports should be ranked higher when allocating power
●
Port disconnect precedence to specify the method of shutting off ports when not enough PoE power
is available
NOTE
A full discussion of these concepts may be found in the ExtremeXOS 12.0 Concepts Guide, Power over Ethernet
section.
External PSUs.
The Summit X450e-48p switch may be powered by one, two, or three external power
modules through the redundant power input connector on the rear of the switch.
The EPS-C (External Power Supply Chassis) is shipped with the redundant power supply cable that
connects to the redundant input connector on the rear of the switch. The EPS-C chassis can hold from
one to three 600-Watt EPS-600LS (External Power Module) units.
The PoE capability of the Summit X450e-48p switch varies depending on the number of external power
modules in use.
Table 30
summarizes the PoE power behavior for the Summit X450e-48p switch based
on the number of power supply modules in use.
For complete details, see
“EPS-600LS External Power Module” on page 328
.
Table 30: Number of external PSUs and corresponding PoE behavior
Internal PSU
Status
EPS-600LS (1x)
EPS-600LS (2x)
EPS-600LS (3x)
External PSU/Chassis
Failed/Disconnected
Internal PSU:
Power On
370 W of
redundant power
740 W of
external power only
Internal PSU disabled
740 W of
external power only
with 2:1 redundancy
Internal PSU disabled
370 W of
internal power only
Internal PSU:
Power Failure
370 W of
external power only
740 W of
external power only
740 W of
external power only
with 2:1 redundancy
No PoE power
Summary of Contents for BlackDiamond 10808
Page 14: ...Table of Contents Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 14 ...
Page 18: ...Preface Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 18 ...
Page 19: ...1 Site Preparation ...
Page 20: ......
Page 40: ...Site Preparation Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 40 ...
Page 41: ...2 BlackDiamond Switches ...
Page 42: ......
Page 93: ...3 Installing BlackDiamond Switches and Modules ...
Page 94: ......
Page 189: ...4 Installing BlackDiamond Switch Accessories ...
Page 190: ......
Page 207: ...5 BlackDiamond Maintenance Procedures ...
Page 208: ......
Page 239: ...6 Summit Family of Switches ...
Page 240: ......
Page 335: ...7 Optics ...
Page 336: ......
Page 363: ...8 Initial Management Access ...
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Page 369: ...9 Appendixes ...
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