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The 36-port 10/100BASE-TX Fast Ethernet RJ-45
Layer 2 Switching Module (Model
Number 3CB9LF36R) has thirty-six 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 20-port 100BASE-FX (MT-RJ) Fast Ethernet
Layer 2 Switching Module (Model
Number 3CB9LF20MM) has twenty 100 Mbps
Ethernet fiber-optic ports with MT-RJ connectors
on its front panel and two 1-Gigabit ports on
the back for connection to the chassis
backplane.
The following Layer 3 router switching modules are
designed for the CoreBuilder 9000 7-slot chassis,
8-slot chassis, and 16-slot chassis:
The 12-port 10/100BASE-TX Fast Ethernet Layer 3
Module (multiprotocol module) (Model
Number 3CB9RF12R) has twelve 10/100BASE-TX
Fast Ethernet front panel ports that provide a
100 Mbps connection over UTP-Category 5 cables
with lengths up to 100 meters (328 ft.). These
ports interface to one Gigabit Ethernet
non-blocking port that connects through the
backplane to the switch fabric module.
The 10-port 100BASE-FX Fast Ethernet Layer 3
Module (multiprotocol module) (Model
Number 3CB9RF10MC) has 10 front-panel
external ports of full-duplex 100BASE-FX, using SC
(Subscriber Connector) connectors over MMF
(multi-mode fiber). These ports interface to one
Gigabit Ethernet (GEN) port that connects to the
backplane.
The 6-port SAS (3-port DAS) FDDI Layer 3
Switching Module (Model Number 3CB9RD6MC)
has six ports with Subscriber Connectors (SC) on
the front panel that provide up to six Single
Attached Station (SAS) connections or up to three
Dual Attached Station (DAS) connections with
either single mode fiber or multimode fiber. One
Gigabit Ethernet port connects the module to the
chassis backplane.
The 4-port GBIC Gigabit Ethernet Layer 3
Switching Module (Model Number 3CB9RG4) has
four Gigabit Ethernet Interface Converter (GBIC)
front panel ports, which interface to four Gigabit
Ethernet backplane ports. The 4-Port Gigabit
Ethernet Layer 3 Switching Module includes its
own embedded management agent that supports
standard Simple Network Management Protocol
(SNMP) Management Information Bases (MIBs).
For information about how to install these modules,
see the module's Quick Start Guide that is shipped
with each module.
Gigabit Ethernet Interface Modules
The Gigabit Ethernet (GEN) Interface Modules are
two-port interface modules for the 3Com
CoreBuilder 9000 Enterprise Switch. The GEN
interface modules serve as a 2–Gigabit data channel
between the Gigabit Ethernet Switch Fabric Module
and other 802.3z–compliant Gigabit Ethernet
devices. GEN Interface Modules use SC connectors.
Interface Modules
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