Product Description
Product description
The RB-4FXSFXO-ETH set is designed to transport four POTS type telephone lines and 10/100Base-Tx data over fiber optic, with high fidelity and with a universal, no setting, plug and play approach. The optical port requires a single strand of fiber, reaching up to 20Km over single-mode 9/125um or up to 1Km over multi-mode 50/125 or 62.5/125um fibers. Same unit can be used on either MMF or SMF media. The telephone lines extended support DTMF and Caller ID functions. LED indicators signal the power status, Ethernet/DATA, Fiber Link and Line status of each POTS port. The Transmitter unit has FXO ports for Telco or PBX lines and the Receiver unit has FXS port for handsets, fax-machines or dialers or any other phone line end devices. The position of the FXO and FXS unit should be properly observed during installation.
The RB-4FXSFXO-ETH set is hardened for wide temperature operation (-20 to +70 Celsius) and includes wall mounting holes in the metal casing. Each unit is powered by a small separate AC adapter providing 5V/1A output. A special rack mounting solution is available by demand, please contact us for such inquiries.
Technical specifications
| POTS Line: | FXO (Impedance:600ohms, REN:0.4), FXS (Feedback Voltage: 48VDC, Ring: 90Vp-p) |
| Interfaces: | 4x RJ11 port 600Ohms, 1x 10/100Base-Tx RJ45 Ethernet port and single SC 155M fiber port |
| Operating wavelength: | 1310nm/1550nm single strand BiDi |
| Operating distance: | 20Km on 9/125um fiber or 1Km on 50/125 or 62.5/125um fiber |
| Optical connector: | SC single type connector |
| Front LEDs: | Power, Fiber Link, ETH, Line1/2/3/4 |
| Power: | External 90-260V AC switching adapter 5VDC@1A with NEMA1-15(2 blades only), US type main plug |
| Temperature: | -20 to 70°C (Operating); -40 to 85°C (Storage) |
| Humidity: | 20-80% non condensing (Operating); 0-90% (Storage) |
| Consumption: | less than 5W |
| Dimensions(WxDxH): | 104mm x 104mm x 28mm |
| Weight: | 330g (without AC adapter) |
| Compliance: | CE, FCC Class A |
| MTBF: | 65,000 hours |
Fiber power budget
| Model | Distance | Lambda | Min. Output (dBm) | Sensitivity (dBm) | Power Budget (dB) |
| RB-4FXSFXO-ETH | 20Km SMF / 1Km MMF | 1310nm/1550nm | -15 | -32 | 17 |
Additional information on RB-4FXSFXO-ETH: 
PDF datasheet; PDF Installation Manual.
Note: For 19" rack mounting solution for these POTS extenders, please contact our sales department by e-mail or call us.
