3Com 5124M-TPCL manual Example Sample Configuration Distance Calculation

Example: Sample Configuration Distance Calculation

Use the following example to determine if the 10BASE-T transceivers in Figure 2-3 are within legal Ethernet limits. Identify the two transceivers that are likely to be the greatest fiber equivalent distance apart. In Figure 2-3, they are 10BASE-T transceivers A and B.

Figure 2-3 shows 24-Port Modules installed in each of three concentrators.

Figure 2-3. Sample Configuration Distance Calculation Using 24-Port Modules

To determine if your network configuration is legal:

1.Use 4200 m as the maximum network diameter for a pure fiber network as defined by the 802.3 specification.

Designing and Expanding the Network 2 - 11