FRM220-FXO-FXS-SC02A POTS (RJ11) over multimode single strand fiber converter, telephone line extender, SC 2Km, A type

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  • FRM220-FXO-FXS-SC02A POTS (RJ11) over multimode single strand fiber converter, telephone line extender, SC 2Km, A type
  • FRM220-FXO-FXS-SC02A POTS (RJ11) over multimode single strand fiber converter, telephone line extender, SC 2Km, A type
MSRP: $699.00
— You save $200.00


Product description
The FRM220-FXO-FXS-SC02A is a POTS (RJ11) port over fiber optic media converter. The PSTN two-wire POTS telephone port can be configured either as an FXO (PBX trunk) or FXS (telephone set/fax machine/dial-up modem) device just by a simple DIP switch setting. Using a pair of converters, a telephone line can be extended over a fiber optic circuit, providing full service and features like Caller ID. The converter can be used in service mode, alowing connection of 2 telephone sets in between. FRM220-FXO-FXS-SC02A operates on multimode fiber up to 2Km (1.3mi) distance and it is using a SINGLE STRAND of multi-mode fiber, either 62.5/125um or 50/125um. The fiber media converter has only one SC type optical connector and does the BiDirectional communication using Tx: 850nm and Rx: 1310nm wavelengths.

An FRM220-FXO-FXS-SC02A must be paired with FRM220-FXO-FXS-SC02B model, which is acting complementary over the fiber, using Tx: 1310nm and Rx: 850nm.
The BiDirectional model is saving precious strands of fiber for very little price difference. When fiber is scarce, using a BiDirectional model will halve the fiber requirements while providing absolutely same performance as a dual strand model.

When the FRM220-FXO-FXS-SC02A (or B) POTS over fiber converter is placed in the FRM220 rack with in-band and SNMP management, the converters status, type, version, fiber link status, POTS RJ11 port status and alarms can all be displayed. Configuration is also available to enable or disable the port, reset the port, do far end fault setting, and initiate local or far end loop-back tests.

Technical specifications

POTS Line: FXO (Impedance:600ohms, REN:0.4), FXS (Feedback Voltage: 48VDC, Ring: 90Vp-p)
Interfaces: RJ11 port 600Ohms and single SC BiDirectional 155M fiber port
Operating wavelength: Tx: 850nm / Rx:1310nm multimode
Operating distance: 2Km on 62.5/125um or 50/125um fiber
Optical connector: SC single connector
Front LEDs: Power, Fiber Link, Di/Do, Test mode
Power: External 90-260V AC switching adapter 9VDC@1A with NEMA1-15(2 blades only), US type main plug
Temperature: 0 50°C (Operating); 0 70°C (Storage)
Humidity: 20 80% non condensing (Operating); 0 90% (Storage)
Consumption: less than 5W
Dimensions(WxDxH): 88mm x 155mm x 23mm
Weight: 330g (without AC adapter)
Compliance: CE, FCC Class A
MTBF: 65,000 hours

Fiber power budget for multimode BiDIrectional models

Model Distance Lambda Min. Output (dBm) Sensitivity (dBm) Power Budget (dB)
FRM220-FXO-FXS-SC02A 2Km T:850/R:1310nm -20 -31 11
FRM220-FXO-FXS-SC02B 2Km T:1310/R:850nm -20 -31 11

Additional information on FRM220-FXO-FXS-SC02A: PDF datasheet; PDF Installation Manual.

Note: Versions of FRM220-FXO-FXS converters with ST or FC optical connectors are available on request. For such converters, please contact our sales department by e-mail or call us.

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Warranty Information

2 years
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Additional Information

Interface Type:
POTS line
Fiber Type:
Tx Distance:
Power Type:
separate AC adapter included
Cable Type:
Cable Type:
50/125um multi-mode
Cable Type:
62.5/125um multi-mode
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