3Com manual Model Number 5124M-TPCL Features, Bank Switching Capability, Introduction 1

❑Is designed with all ports internally crossed over, as required by the 10BASE-T standard. This enables you to connect the 24-Port Module to a 10BASE-T transceiver without using an external crossover adapter.

Bank Switching Capability

Bank switching is the assignment of a group of twelve consecutive ports to a single network, or to an isolated network.

In an unmanaged concentrator you can use DIP switches to:

❑Assign all module ports to an Ethernet network or to an isolated network

❑Assign port groups 1 through 12 or 13 through 24 to different Ethernet or isolated networks

In a managed concentrator you can use network management commands to assign the following port “groups” to any of three backplane networks, or to either of two isolated networks:

❑Ports 1 through 12

❑Ports 13 through 24

❑All ports on the module

Model Number 5124M-TPCL Features

Model Number 5124M-TPCL permits you to connect groups of 12 consecutive 10BASE-T-compliant module ports using:

❑Two 50-pin Telco connectors (one connector attached to 12 ports)

❑Two 25-pair 10BASE-T cables or two 12-leg “hydra” cables (one cable per 12 ports)

Introduction 1 - 3