3Com 8807 Switch, Functions, The following are the main functions of the backplane, Structure

12CHAPTER 1: PRODUCT OVERVIEW

Switch 8814

Figure 6 Switch 8814 slots

I/O Module

I/O Module

I/O Module

I/O Module

I/O Module

I/O Module

Fabric

Fabric

I/O Module

I/O Module

I/O Module

I/O Module

I/O Module

I/O Module

PoE

AC PSUAC PSU entry

Fan tray 1

Fan tray 2

■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.

■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.

■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.

Backplane 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.

Functions

The following are the main functions of the backplane:

■Providing communication channels for signal exchange between boards

■Supporting board hot-swapping

■Supporting auto-discovering boards in slots

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

Structure

■Switch 8807