Voice over Fiber with In-Band Management: FRM220-FXO/FXS


Single port FXO/FXS Fiber Converter

Single port FXO/FXS Fiber Converter Card: FRM220-FXO/FXS

The FRM220-FXO/FXS is a POTS (Plain Old Telephone System) over fiber converter/extender. The POTS connection uses a standard RJ-11C modular connector for one copper pair connection. A pair of FRM220-FXO/FXS is required to implement an end to end system. FXO mode connects to a telephone line (PSTN) or PBX station line and has ability to detect ringing voltages and to act as a telephone. FXS mode is the reciprocal unit and has ability to act as PSTN and connects to a telephone device. When the FRM220-FXO/FXS card is placed in the FRM220 rack with NMC management, in-band management allows configuring and viewing the card and remote converter's status, type, version, fiber link status, on hook status and alarms. Both card and remote can be configured to enable or disable the port, reset the port and set the FXO or FXS mode. When configured in an FXS to FXS fashion, a private "hot line" or direct line is created. When placed in a single slot chassis and used standalone without management, the card may be configured by DIP switch.

  • Extend telephone voice transmission up to 120km over fiber
  • Network management via terminal, web or SNMP in FRM220 (NMC)
  • Supports caller ID Pass-Through
  • Selectable FXO or FXS mode
  • Supports FXS to FXS hot line
  • Supports D/D function for SFP fiber transceiver
  • Will not support FAX or Modems

Figure 1 : Automatic Ring down hotline

Automatic Ring down hotline

Figure 2 : Voice Transmission from 2km to 120km over fiber

Voice Transmission from 2km to 120km over fiber

Figure 3 : Selectable FXO or FXS mode

Selectable FXO or FXS mode

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