FRM220-FXO-4, FRM220-FXS-44x FXO over fiber & 4x FXS over fiber
FRM220-FXO-4/FXS-4 are 4 channel POTS (Plain Old Telephone System) over fiber converter/extender. The four POTS connection uses standard RJ-11C modular connectors for each copper pair connection. A pair of FRM220-FXO-4/FXS-4 is required to implement an end to end system. FXO type unit connects to a telephone line (PSTN) or PBX station line and has ability to detect ringing voltages and to act as a telephone. FXS type unit is the reciprocal unit and has ability to act as PSTN and connects to a telephone device. Two FXS cards may be connected back-to-back to provide a private "hot line".
Features* Extend telephone voice transmission up to 120km over fiber
* Network management via terminal, web or SNMP in FRM220 (NMC)
* Supports telephone voice transmission
* Supports FXS to FXS hot line
* Supports caller ID Pass-Through