This version of our phone over optic fiber muxes are 19' rack mount and 48VDC + 110/220 VAC double power type - and can be good choice for server rooms and industrial type applications www.ad-net.com...
@@ad-net thanks for the answer. I am a multiplexer technician however i lack the telephony knowledge. I assume fxs fxo is 2Wire, please correct me if i am wrong.
