1.25Gbps Compact Bi-Di SFP Transceiver, 20km Reach 1550nm TX 1310 nm RX
Description
This GCS-B5312-B5312-20C CSFP transceiver is an ultra-low power (power consumption < 1.3W), high performance and high stability product operating in standard commercial temperature, provides 1000Base-BX 2-channel throughput up to 20km over standard single mode fiber via an duplex LC connector.
The CSFP BIDI LX20 transceiver is with two independent data communication channels, for each separate channel this transceiver uses a highly reliable 1550nm DFB Laser transmitter and a 1310nm 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 eLX Transceiver is fully compliant to compact Small Form-Factor Pluggable (CSFP) MSA option 2 and CE/RoHS certified.
Specifications
| Product Series |
1.25G CSFP |
P/N |
GCS-B5312-B5312-20C |
| Packaging |
CSFP |
Type |
dual BiDi eLX |
| Bit Rate (Gbps) |
2x 1.25G |
Lane Count |
2x Tx/ 2x Rx |
| Link Reach |
20km |
Interface |
duplex LC/UPC |
| TX Wavelength (Typical) |
2x 1550nm |
RX Wavelength (Typical) |
2x 1310nm |
| Power Supply Voltage |
+3.3V (typical) |
Power Dissipation |
≤ 1.2W |
| Transmitter Component |
DFB |
Receiver Component |
PIN |
| Transmitter Power |
-9 ~ -3dBm |
RX Sensitivity |
< -22dBm |
| Extinction Ratio |
> 9dB |
RX Saturation |
> -3dBm |
| Power-budget (dB) |
13dB |
DOM |
Support |
| Environment |
Operating: standard 0 to 70°C |
Warranty |
3 years |
| Storage: -40°C to 85°C |
Weight |
25gram |
| 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
- 1550nm DFB laser and 1310nm PIN photodiode
- 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
- Switch to Switch Interface
- Gigabit Ethernet
- Point to Point FTTH Application
- Switched Backplane Applications
- Router/Server Interface
- Other Optical Links
Optical and Electrical Characteristics
| Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
| Transmitter |
| Centre Wavelength |
λc |
1480 |
1550 |
1580 |
nm |
|
| Spectral Width (-20dB) |
σ |
|
|
1 |
nm |
|
| Side Mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
| 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 |
1290 |
|
1330 |
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 1.25G BIDI CSFP Transceiver LX TX1550nm RX1310nm SMF 20km Sfp Module Single Fiber Images
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