The Backplane - Cabletron Systems 9C106 Setup And Installation Manual

Introduction

The Backplane

The 9C106 SmartSwitch 9000-6 Slot chassis provides six distinct backplane buses,
and the 9C706 provides an additional seventh bus, the Cell Transfer Matrix. Each
bus serves a particular set of needs. The seven backplane buses are shown in
Figure 1-1.
The descriptions of the seven backplane buses are as follows:
System Management Bus 1
The System Management Bus 1, abbreviated SMB-1, is a management bus
devoted solely to transferring management information between the modules in
the chassis. It is through the SMB-1 that modules inform each other, and the
System Monitor, of their current operating status, diagnostic test results,
initialization queries and other information. The SMB-1 operates at 1 Mbps, and
every module in the chassis has a connection to it.
1-2
System Management Bus 1
System Management Bus 10
Flexible Network Bus 1
Flexible Network Bus 2
Inter-Networking Bus A
Inter-Networking Bus B
Cell Transfer Matrix
Figure 1-1. The SmartSwitch 9000-6 Slot Backplane Buses