H3C Technologies H3C S9500 Series Switches - Manual (Page 13)

Installation Manual
H3C S9500 Series Routing Switches
Chapter 1 Product Overview
1-7
I. Functions
The backplane mainly functions in
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Providing communication channels for signal exchange between boards
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Providing support for hot-swapping of boards
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Auto-identifying the slots
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Connecting PSUs, achieving distributed power supply for SRPU modules, LPU
modules and PSUs and providing corresponding control channels.
II. Structure
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S9502
It uses a passive backplane, which provides two LPU slots and two SRPU slots or
provides three LPU slots and one SRPU slot, one port for fan tray, and two -48V ports
(one for system power input and one for PoE entry).
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For S9505
It uses a passive backplane, which provides five LPU slots and two SRP slots, one port
for fan tray and two –48V ports (one for system power input and one for PoE entry).
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For S9508
It uses a passive backplane, which provides eight LPU slots and two SRP slots, one
port for fan tray and two –48V ports (one for system power input and one for PoE
entry).
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For S9512
It uses a passive backplane, which provides 12 LPU slots and two SRP slots, one port
for fan tray and two –48V ports (one for system power input and one for PoE entry).
1.2.3 System Power Supply
Note:
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The S9500 series can be AC-powered or DC-powered. You can choose power
supply modules as needed.
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If you want to change power supply type, just insert the power supply module of right
type.
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Power supply modules of the S9500 series are online-swappable.
The S9500 series can be AC-powered or DC-powered. The power supply is at the
bottom of the chassis, with a height of 3U (except S9502 switches). You can insert both
AC and DC power supply modules in the same slot based on your needs. The power
frame is in different compartment from the functional board frame and connected to the