3com 8807 User Manual

C

HAPTER

 1: P

RODUCT

 O

VERVIEW

Figure 6   Switch 8814 slots

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The Switch 8814 chassis provides 14 slots in its board area: The middle two 
accommodate fabric modules, which can operate in 1+1 redundancy mode; 
the remaining 12 accommodate I/O or application modules, which you can 
select from various available models. All modules in this area are 
hot-swappable.

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At the bottom of the chassis is the power area that can accommodate one PoE 
entry module and two PSUs. The two PSUs are online-swappable. The switch 
supports AC power inputs.

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On the right of the chassis is the fan area that contains two vertical 
hot-swappable fan trays. The fan trays draw and exhaust air from left to right.

The backplane of the Switch 8800 Family allows high-speed data exchange 
between fabrics and I/O modules, as well as the exchange of various management 
and control signals in the system.

The following are the main functions of the backplane:

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Providing communication channels for signal exchange between boards

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Supporting board hot-swapping

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Supporting auto-discovering boards in slots

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Connecting PSUs, distributing power and providing monitor channels to 
various components (PSUs, fabrics and I/O modules) in the chassis.

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Switch 8807

Fabric

Fabric

I/O Module

I/O Module

I/O Module

I/O Module

I/O Module

I/O Module
I/O Module

I/O Module

I/O Module

I/O Module

I/O Module

I/O Module

AC PSU

PoE

entry

AC PSU

Fa
n

 tr
a

y

 1

F

a

n

 tr
a

y

 2