1.244G Dual Channel BIDI CSFP Transceiver Module TX1310nm RX1490nm SMF 40km
1.244G Dual Channel BIDI CSFP Transceiver Module TX1310nm RX1490nm SMF 40km
Description
This GCS-B3412-B3412-40C is a CSFP (Compact SFP) transceiver where both ports are bi-directional, i.e. providing
double capacity as compared to normal BiDi transceivers where one port is not used. This requires that the host equipment support CSFP transceivers.
It supports 1244Mbps throughput and 40km transmission distance with SMF. For each port, the transceiver unit consists of three sections: a DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
Specifications
| Product Series | 1G CSFP Transceiver | P/N | GCS-B3412-B3412-40C |
| Packaging | CSFP | Type | dual BiDi EX |
| Bit Rate (Gbps) | 2x 1.244G | Lane Count | 2x ( Tx/Rx ) |
| Cable Length | 40km | Connector | LC/UPC duplex |
| TX Wavelength | 2x 1310nm | RX Wavelength | 2x 1490nm |
| Power Voltage | +3.3V (typical) | Power Consumption | ≤ 1.3W |
| Transmitter Part | DFB | Receiver Part | PIN |
| Transmitter Power | -5 ~ 0dBm | RX Sensitivity | < -25dBm |
| Extinction Ratio | > 9dB | Overload | > 0dBm |
| Optical-budget (dB) | 20dB | DOM/DDM | Support |
| Temperature | Operating: Commercial 0 to 70°C | Warranty | 36-month |
| Storage: -40°C to 85°C | Weight | 25gram | |
| Compliance | Gigabit Ethernet, MSA Compliant | ||
Features
- Support up to 1.244Gbps Data Links
- Single 3.3V Power supply and TTL Logic Interface
- Dual Bi-directional transceivers in 1 Compact SFP transceiver package
- 1310nm DFB laser and 1490nm PIN photodiode
- Up to 40km on 9/125µm SMF
- Digital Diagnostics Monitoring functions are available
- Class 1 Laser International Safety Standard IEC 60825 Compliant
- Operating Case Temperature Standard: 0~+70C and Industrial -40~+85C
- Compliant with CSFP MSA Option 2 or Option 1
- Compliant with Digital Diagnostic Monitor Interface SFF-8472
- RoHS compliant and lead free
Application
- SONET OC-24 system
- Fast Ethernet
- Switch to Switch interface
- Point to Point FTTH Application
- Other optical transmission systems
Optical and Electrical Characteristics
| Parameter | Symbol | Min | Typical | Max | Unit | Notes | ||
| Transmitter | ||||||||
| Centre Wavelength | λc | 1290 | 1310 | 1330 | 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 | 0.26 | 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 | 1470 | 1490 | 1510 | nm | |||
| Receiver Sensitivity | -25 | dBm | 3 | |||||
| Receiver Overload | 0 | dBm | 3 | |||||
| LOS De-Assert | LOSD | -27 | dBm | |||||
| LOS Assert | LOSA | -40 | 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 | ||||||
Notes:
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 @1244Mbps, BER ≤1×10-12.
4. Internally AC-coupled.
Package Outline
Dimensions are in millimeters. All dimensions are ±0.1mm unless otherwise specified. (Unit: mm)
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