Fast Ethernet Switching Modules - 3Com 3CB9E7 - CoreBuilder 9000 Chassis Switch Getting Started Manual

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HAPTER ORE UILDER
The CoreBuilder 9000 16-slot Switch contains 14 slots
for interface modules. Fast Ethernet modules, Gigabit
Ethernet modules, or ATM modules can occupy every
slot, except slot 8 and slot 9, in the 16-slot chassis.
The 14 interface modules in the 16-slot Switch access
five 2 Gbps serial channels, which are star-wired to
two dedicated switch fabric module slots.
There are two types of CoreBuilder 9000 interface
modules. Interface modules provide network
connectivity functions.
The module families are associated with the
corresponding choice of a switch fabric module
technology: Gigabit Ethernet or ATM.
Frame-based interface modules — Support
10/100 Fast Ethernet and Gigabit Ethernet. The
following interface modules are supported:

Fast Ethernet Switching Modules

Gigabit Ethernet Interface Modules
Cell-based interface modules — Support ATM
switching and frame-based Fast Ethernet and
Gigabit Ethernet (GEN) switching.
The cell-based interface modules are available in:
OC-3c/STM-1, 4-port
OC-3c/STM-1, 3-port multi-mode and 1-port
single-mode
OC-12c/STM-4, 1-port (single-mode or
multi-mode)
155 Mbps-over-UTP5, 4-port
9000 E S M
NTERPRISE WITCH ODULES
You cannot mix ATM modules and Ethernet modules
in the same chassis.
Fast Ethernet Switching Modules
The frame-based switching modules are intelligent
Layer 2 and Layer 3 modules that have their own
embedded agent. These modules are physically
connected to the backplane ports of the switch fabric
module in the chassis. These modules switch between
the front panel ports and the backplane ports.
Switching interface modules provide network
connectivity functions.
The following Layer 2 switching modules are
designed for the CoreBuilder 9000 7-slot chassis,
8-slot chassis, and 16-slot chassis:
The 10-port 100BASE-FX Fast Ethernet Layer 2
Switching Module (Model Number 3CB9LF10MC)
has ten 100 Mbps Ethernet fiber-optic front panel
ports. These ports interface to two 1-Gigabit
non-blocking ports on the backplane.
The 20-port 10/100BASE-TX Fast Ethernet Layer 2
Switching Module (Model Number 3CB9LF20R)
has twenty 10/100 Mbps RJ-45 front panel ports.
These ports interface to a maximum of two
1-Gigabit non-blocking ports on the backplane.
The 36-port 10/100BASE-TX Fast Ethernet Telco
Layer 2 Switching Module (Model
Number 3CB9LF36T) has thirty-six 10/100 Mbps
Telco front panel ports. These ports interface to a
maximum of two 1–Gigabit non-blocking ports on
the backplane.