Disclaimer: Please forgive my ignorance of this subject matter; I am just getting started in telecommunications.

We have an AT&T Dimension 2000 PBX with a 20+ year old cable plant that is in bad need of repair/replacement. This existing copper serves an electrical generating facility and various outbuildings (8-10 closets, about 300 users). We would like to replace the copper with fiber, but I haven't had any luck finding anyone that manufactures a 'PBX Extension'.

I did find the TC Communications Fiber Optic Multiplexer (TC8800), which looks like it will work for some of our circuits, but we also need to support some AT&T 7406 Digital Display phones, which the TC8800 will NOT support.

Does anyone have any ideas/suggestions?

Thanks in advance.