Equivalent Distances For 20/40 10Base-T Modules - IBM Nways 8260 Manual

Support for port redundancy
You can set up redundancy between two links on the same module or two
different modules. Note that port redundancy is supported between different
types of modules. For example, you can set a 10Base-T port on an 8260
Ethernet 20-Port 10Base-T Module to be a redundant port for a port on an
8260 Ethernet 10-Port 10Base-FB Module.
Support for non-10Base-T compliant devices
This module allows you to disable link integrity which allows connection to
some equipment that does not conform to the 10Base-T standard.
When designing Ethernet segment consisting of the 20/40-port 10Base-T
modules, you must use the following Equivalent Distances for this module:
Table 18. Equivalent Distances for 20/40 10Base-T Modules
8260 Module
24-port 10Base-T Module
Incoming signal to TP port
Outgoing signal to TP port
Figure 69 on page 108 shows the front view of the 20/40-port 10BASE-T modules.
As can be seen, these modules provide you with LED Indicators on the front
panel that allow you to monitor the status of the module and the individual ports.
Equivalent Distance (meters)
585
420
165
Chapter 7. 8260 Ethernet Modules
107