Shenzhen Gigaopto Technology Co., Ltd.
Professional Designer and Manufacturer of Optical Transceivers
Add to Cart
2.488Gbps Compact Bi-Di SFP Transceiver 1490nm TX 1310 nm RX 20km
Description
The GCS-B4325-B4325-20C transceiver is high performance, cost effective module where both ports are bi-directional, each port supports 2448Mbps throughput and 20km transmission distance with SMF.
The two independent channel transceiver unit consists of three sections: a high quality 1490nm DFB laser transmitter, a high reliable 1310nm PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
It is with the SFP 20-pin connector to allow hot plug capability. Digital diagnostic functions are available via an I2C interface as specified in the MSA SFF-8472.
The transceiver is fully compatible with Compact SFP Multi-Source Agreement (MSA).
Specifications
| Product Category | 2 Fiber CSFP Transceiver | P/N | GCS-B4325-B4325-20C |
| Form Factor | CSFP | Technology | Dual-Lane BIDI |
| Bit-Speed (Gbps) | 2.488G/2.488G | Lane Count | 2x ( Tx/Rx ) |
| Cable Transmission | 20km | Interface | Dual LC UPC |
| TX Center Wavelength | 2x 1310nm | RX Center Wavelength | 2x 1490nm |
| Power Supply Voltage | +3.3V (typical) | Power Dissipation | ≤ 1.8W |
| Transmitter Type | DFB laser | Receiver Type | PIN |
| Transmitter Power | -5 ~ 0dBm | Receiver Sensitivity | < -19dBm |
| Extinction Ratio | > 9dB | Receiver Overload | > 0dBm |
| Optical Budget (dB) | 14dB | Digital Diagnostic | Build-in |
| Environment | Operating: 0 to 70°C | Warranty | 36-month |
| Storage: -40°C to 85°C | MTBF | 1,000,000Hours | |
| Compliance | Gigabit Ethernet, MSA Compliant | ||
Features
Application
Electrical and Optical Characteristics
| Parameter | Symbol | Min | Typical | Max | Unit | Notes | ||
| Transmitter | ||||||||
| Centre Wavelength | λc | 1470 | 1490 | 1510 | nm | |||
| Spectral Width (-20dB) | σ | 1 | nm | |||||
| Side Mode Suppression Ratio | SMSR | 30 | dB | |||||
| Average Output Power | Pout | -5 | 0 | dBm | 1 | |||
| Extinction Ratio | ER | 9 | dB | |||||
| Optical Rise/Fall Time (20%~80%) | tr/tf | 0.16 | ns | |||||
| Data Input Swing Differential | VIN | 400 | 1800 | mV | 2 | |||
| Input Differential Impedance | ZIN | 90 | 100 | 110 | Ω | |||
|
TX Disable |
Disable | 2.0 | Vcc | V | ||||
| Enable | 0 | 0.8 | V | |||||
|
TX Fault |
Fault | 2.0 | Vcc | V | ||||
| Normal | 0 | 0.8 | V | |||||
| Receiver | ||||||||
| Centre Wavelength | λc | 1290 | 1330 | nm | ||||
| Receiver Sensitivity | -19 | dBm | 3 | |||||
| Receiver Overload | 0 | dBm | 3 | |||||
| LOS De-Assert | LOSD | -19 | dBm | |||||
| LOS Assert | LOSA | -30 | dBm | |||||
| LOS Hysteresis | 1 | 4 | dB | |||||
| Data Output Swing Differential | Vout | 400 | 1800 | mV | 4 | |||
|
LOS |
High | 2.0 | Vcc | V | ||||
| Low | 0.8 | V | ||||||
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 223-1 test pattern @2488Mbps, BER ≤1×10-12.
4. Internally AC-coupled.