- Description
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What is QSFP28 100G CWDM 1310nm 2km Optical Transceiver Module
QSFP28 100G CWDM 1310nm 2km Optical Transceiver Module is a Four-Channel, Pluggable, dual LC, Fiber-Optic QSFP28 Transceiver for 100G Ethernet applications.The QSFP28 full-duplex optical module offers 4 independent transmit and receive channels, each capable of 26Gbps operation for an aggregate data rate of 104Gbps 2km using single mode fiber. These modules are designed to operate over single mode fiber systems using 1271nm-1331nm DFB laser array.QSFP28 CWDM4 is one kind of transceiver which provides increased port density and total system cost savings. They are compliant with the QSFP28 MSA, CWDM4 MSA and portions of IEEE P802.3bm.
Product Features
· Four-channel full-duplex transceiver modules
· Transmission data rate up to 26Gbit/s per channel
· Up to 2km transmission of single mode fiber
· Low power consumption <3.5W
· Operating case temperature 0℃ to +70℃
· 3.3V power supply voltage
· RoHS 6 compliant
· Hot Pluggable QSFP form factor
· LC connector receptacle
· Built-in digital diagnostic function
Applications
· 100G Ethernet
· Proprietary High Speed Interconnections
· Datacenter
· 100G CWDM4 application with FEC

Regulatory Compliance
Feature | Standard | Performance |
Electromagnetic Interference (EMI) | FCC Part 15 Class B EN 55022:2010, Class B | Compatible with standards |
Electromagnetic susceptibility (EMS) | EN 55024:2010 | Compatible with standards |
Laser Eye Safety | FDA 21CFR 1040.10 and 1040.11 EN60950, EN (IEC) 60825-1,2 | Compatible with Class I laser product |
Absolute Maximum Ratings
The operation in excess of any absolute maximum ratings might cause permanent damage to this module.
Parameter | Symbol | Min | Max | Unit | Notes |
Storage Temperature | TS | -40 | 85 | ℃ | |
Operating Case Temperature | TOP | 0 | 70 | ℃ | |
Supply Voltage | VCC | -0.3 | 3.6 | V | |
Input Voltage | Vin | -0.3 | Vcc+0.3 | V | |
Relative Humidity (non-condensation) | RH | 0 | 85 | % |
Recommended Operating Conditions and Power Supply Requirements
Parameter | Symbol | Min | Typical | Max | Unit | Notes |
Operating Case Temperature | TOP | 0 | 70 | ℃ | ||
Power Supply Voltage | VCC | 3.135 | 3.3 | 3.465 | V | |
Data Rate, each Lane | DR | 25.78125 | Gb/s | |||
Power Consumption | 3.5 | W | ||||
Data Speed Tolerance | DR | -100 | +100 | ppm | ||
Link Distance with G.652 | D | 0 | 10 | km |
Electrical Characteristics
The following electrical characteristics are defined over the Recommended Operating Environment unless otherwise specified.
Parameter | Symbol | Min | Typical | Max | Unit | Notes |
Differential input impedance | Zin | 90 | 100 | 110 | ohm | |
Differential input impedance | Zout | 90 | 100 | 110 | ohm | |
Differential input voltage amplitude | ΔVin | 300 | 1100 | mVp-p | ||
Differential output voltage amplitude | ΔVout | 500 | 800 | mVp-p | ||
Input Logic Level High | VIH | 2.0 | VCC | V | ||
Input Logic Level Low | VIL | 0 | 0.7 | V | ||
Output Logic Level High | VOH | VCC-0.5 | VCC | V | ||
Output Logic Level Low | VOL | 0 | 0.4 | V |
Optical Characteristics
Parameter | Symbol | Min | Typical | Max | Unit | Notes |
Wavelength Assignment | L0 | 1264.5 | 1271 | 1277.5 | nm | |
L1 | 1284.5 | 1291 | 1297.5 | nm | ||
L2 | 1304.5 | 1311 | 1317.5 | nm | ||
L3 | 1324.5 | 1331 | 1337.5 | nm | ||
Transmitter | ||||||
RMS Spectral Width | λrms | 3.5 | nm | 1 | ||
Average Launch Power, each lane | PAVG | -6.5 | -0.5 | +2.5 | dBm | |
Optical Modulation Amplitude (OMA) | POMA | -4 | -0.5 | +2.5 | dBm | 1 |
Difference in Launch Power between any two lanes | Ptx,diff | 4.0 | dB | |||
Transmitter and Dispersion Penalty per Lane | TDP | 3 | dBm | |||
Rise/Fall Time | Tr/Tf | 30 | ps | |||
Extinction Ratio | ER | 3.5 | dB | |||
Transmitter Reflectance | RT | -12 | dB | |||
Transmitter Eye Mask Margin | EMM | 10 | % | 2 | ||
Average Launch Power OFF Transmitter, each Lane | Poff | -30 | dBm | |||
Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3} | {0.31, 0.4, 0.45, 0.34, 0.38, 0.4} | |||||
Receiver | ||||||
Wavelength Assignment | L0 | 1264.5 | 1271 | 1277.5 | nm | 2 |
Total Average Receive Power | L1 | 1284.5 | 1291 | 1297.5 | nm | |
Average Receive Power, each Lane | L2 | 1304.5 | 1311 | 1317.5 | nm | |
Receiver Reflectance | L3 | 1324.5 | 1331 | 1337.5 | nm | |
Damage Threshold | THd | +3 | dBm | |||
Overload, each lane | OVL | +2.5 | dBm | 3 | ||
Receiver Sensitivity in OMA, each Lane | SEN | -10 | dBm | |||
Signal Loss Assert Threshold | LOSA | -30 | dBm | |||
Signal Loss Deassert Threshold | LOSD | -15 | dBm | |||
LOS Hysteresis | LOSH | 0.5 | 1.5 | 6 | dB | |
Optical Return Loss | ORL | -12 | dBm |
Notes:
1. Transmitter wavelength, RMS spectral width and power need to meet the OMA minus TDP specs to guarantee link performance.
2. The eye diagram is tested with 1000 waveform.
3. Sensitivity is specified at 5×10-5 BER.
- Customers Reviews
* Delivery Time.
We need 1-2 days to process your order before shipping. There are two shipping methoed.
Fast Delivery: The delivery time for US, European countries the delivery will take 3-5 days.
Slow Delivery: The delivery time for US, European countries the delivery will take 7-15 days.
* Tracking information.
After we ship package, customer receive automatic email with tracking details.
* Lost Package Policy.
If a package did not arrive in 2 weeks after the shipping date, then this package is treated as Lost. In this case a new package will be shipped to the customer provided we are able to give the same items as those purchased by the customer. If we are not able to provide the same items to substitute the lost ones we will either propose to the customer similar items or refund their cost as it will be mutually agree with the customer. If one or more items neither the same nor similar are available to be shipped, the customer can request to cancel the order entirely, thus the total cost of the order including shipping and handling cost will be fully refunded.