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This application is to extend a phone line via fiber optic cable. Follow the connections shown in the following
diagram. Connect two TC1903s via fiber optic cable, from default factory, one unit will be set as FXO and
the other as FXS. Connect a regular dial-up phone line to RJ-11 connector of the "FXO" unit and connect
a telephone set to RJ-11 connector of the "FXS" unit. To establish a call, the users at the remote end (FXS
side) can pickup the phone and dial out to outside phone network just like regular telephone line extended.
Make sure you set one of the units as a "Master" and the other as a "Slave".
By connecting two TC1903s together using two regular telephone sets, the users at both sides of the fiber
link can have a hotlink phone line setup. When one user lifts up the handset, the remote side phone will start
to ring. When remote side user picks up the handset, the phone stops to ring and the conversation begins.
When conversation is over any user can replace the handset to hook to terminate the phone link. If either
party places the handset to hook and the other does not hang up, the phone on hook will continue to ring.
NOTE 1: For this application, both of the TC1903 units will be required to be ordered as FXS units.
NOTE 2: You may experience some clicking noise, this is normal until the remote side picks up the handset.
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MNL-19030-01-19
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