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2.3.2 100FX Modules
Port 23 and Port 24 also provide optional fiber connectivity. The following installation rules should be
applied:
100FX Module Installation Working Connectors
F23 Slot F24 Slot Port 23 Port 24
None None P23 RJ-45 P24 RJ-45
Installed None F23 module P24 RJ-45 can not be used
None Installed P23 RJ-45 F24 module
Installed Installed F23 module F24 module
This figure illustrates an example of 100FX module. Every module has one jumper JP1 as shown. JP1
can be used to disable the module even the module is installed in the switch unit.
JP1 setting
ON - Short the jumper to enable the module
ON - Open the jumper to enable the module