1.25G Compact SFP (CSFP) dual BiDI 1310nm TX 1550 nm RX 20km
Description
This compact small form-factor CSFF transceiver is designed to provide dual bi-directional streams of traffic using a SFP port, thus doubling the port density and reducing power consumption with half the number of ports required,supports 2 x 1000Mbps up to 20km over 9/125um single mode fiber.
The CSFP BIDI LX transceiver is with two independent data communication channels, for each separate channel this transceiver uses highly reliable 1310nm FP Laser transmitter and 1550nm PIN Photodiode receiver, all module satisfy class 1 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 specified in the SFP MSA SFF-8472.
This CSFP LX Transceiver is fully compliant to compact Small Form-Factor Pluggable (CSFP) MSA option 2 and CE/RoHS certified.
Specifications
| Product Series |
Dual 1G CSFP |
Part Number |
GCS-B3512-B3512-20C |
| Package |
CSFP |
Type |
2x BiDi LX |
| Bit Rate (Gbps) |
2x 1.25G |
Lane Count |
2x (Tx/Rx) |
| Max Link Length |
20km |
Connector |
Dual LC/UPC |
| TX Wavelength (Typical) |
2x 1310nm |
RX Wavelength (Typical) |
2x 1550nm |
| Power Supply Voltage |
+3.3V (typical) |
Power Dissipation |
≤ 1.3W |
| TX Component |
FP |
RX Component |
PIN |
| TX Average Power |
-9 ~ -3dBm |
RX Sensitivity |
< -22dBm |
| Extinction Ratio |
> 9dB |
RX Saturation |
> -3dBm |
| Optical Budget (dB) |
13dB |
DOM |
Support |
| Environment |
Operating: 0 to 70°C |
Warranty |
3 years |
| Storage: -40°C to 85°C |
Weight |
0.025kg |
| Protocols |
Gigabit Ethernet, MSA Compliant |
Features
- Support up to 1.25Gbps Data Links
- Single 3.3V Power supply and TTL Logic Interface
- Dual Bi-directional transceivers in 1 Compact SFP transceiver package
- 1310nm FP laser and 1550nm PIN photodetector
- Up to 20km on 9/125µm SMF
- 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 |
1260 |
1310 |
1360 |
nm |
|
| Spectral Width (RMS) |
∆λ |
|
|
4 |
nm |
|
| Average Output Power |
Pout |
-9 |
|
-3 |
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 |
1480 |
1550 |
1580 |
nm |
|
| Receiver Sensitivity |
|
|
|
-23 |
dBm |
3 |
| Receiver Overload |
|
-3 |
|
|
dBm |
3 |
| LOS De-Assert |
LOSD |
|
|
-23 |
dBm |
|
| LOS Assert |
LOSA |
-35 |
|
|
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 27-1 test pattern @1250Mbps, BER ≤1×10-12.
4. Internally AC-coupled.
Product Tags:
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Dual 1G BIDI CSFP Transceiver Module LX 1310nm TX 1550 nm RX SMF 20km Images
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