General Description
The QSFP full-duplex optical module offers 4 independent transmit and receive channels, each capable of 10.3Gbps operation for an aggregate data rate of 40Gbps 10km using single mode fiber. These modules are designed to operate over single mode fiber systems using 1310nm DFB laser array. An optical fiber ribbon cable with an MPO/MTPTM connector can be plugged into the QSFP module receptacle. QSFP+ PSM LR4 is one kind of parallel transceiver which provides increased port density and total system cost savings.
Form Type | QSFP-40G-LR4 | Brand | HTFuture |
Encapsulation | QSFP+ | Data Rate | 44.8Gb/s |
Wavelength | 1271~1331 (nm) | Reach | 30KM |
Interface | MPO/MTP | LD | EML |
Cable Type | SMF | DDM Support | Yes |
TX Power | -6~3dBm | Rx Sens | <-13.5dBm |
Temperature | 0 to 70°C (32 to 158°F) | Quality guarantee | 3 years |
Features
• Four-channel full-duplex transceiver modules
• Transmission data rate up to 11.2Gbit/s per channel
• Up to 10km transmission of single mode fiber
• Low power consumption <2.5W，meet class 3
• Operating case temperature: 0 to 70℃
• 3.3V power supply voltage
• Hot Pluggable QSFP form factor
• RoHS 6 compliant
• Single MPO connector receptacle
• Built-in digital diagnostic function
Applications
• Infiniband QDR and DDR interconnects
• 40G Ethernet
• Proprietary High Speed Interconnections
Data center
Optical Characteristics
Parameter | Symbol | Min | Typical | Max | Unit | Notes | |
Transmitter | |||||||
Center Wavelength | λC | 1270 | 1310 | 1350 | nm | 1 | |
RMS Spectral Width | λrms | 3.5 | nm | 1 | |||
Average Launch Power, each lane | PAVG | -5.5 | -0.5 | +2.3 | dBm | ||
Optical Modulation Amplitude (OMA) | POMA | -4.5 | -0.5 | +3.5 | dBm | 1 | |
Difference in Launch Power between any two lanes | Ptx,diff | 5.0 | dB | ||||
Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane | OMA-TDP | -9.7 | dBm | 1 | |||
Rise/Fall Time | Tr/Tf | 50 | ps | ||||
Extinction Ratio | ER | 3.5 | dB | ||||
Relative Intensity Noise | Rin | -128 | dB/Hz | ||||
Optical Return Loss Tolerance | TOL | 12 | dB | ||||
Transmitter Reflectance | RT | -12 | dB | ||||
Transmitter Eye Mask Margin | EMM | 10 | % | 2 | |||
Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3} | {0.25, 0.4, 0.45, 0.25, 0.28, 0.4} | ||||||
Average Launch Power OFF Transmitter, each Lane | Poff | -30 | dBm | ||||
Center Wavelength | λC | 1270 | 1310 | 1350 | nm | ||
Damage Threshold | THd | +3 | dBm | ||||
Overload, each lane | OVL | +2.3 | dBm | ||||
Receiver Sensitivity in OMA, each Lane | SEN | -11.5 | dBm | ||||
Difference in Receive Power between any two Lanes (OMA) | Prx,diff | 5.0 | dB | ||||
Signal Loss Assert Threshold | LOSA | -30 | dBm | ||||
Signal Loss Deassert Threshold | LOSD | -15 | dBm | ||||
LOS Hysteresis | LOSH | 0.5 | 6 | dB | |||
Optical Return Loss | ORL | -12 | dBm | ||||
Receive Electrical 3 dB upper Cutoff Frequency, each Lane | Fc | 12 | GHz | ||||
Recommended Power Supply Filter
Optical Interface Lanes and Assignment
The optical interface port is a male MPO connector. The four fiber positions on the left as shown in Figure 2, with the key up, are used for the optical transmit signals (Channel 1 through4). The fiber positions on the right are used for the optical receive signals (Channel 4 through 1). The central four fibers are physically present.
Mechanical Dimensions
Attention: To minimize MPO connection induced reflections, an MPO receptacle with 8-degree angled end-face is utilized for this product. A male MPO connector with 8-degree end-face should be used with this product as illustrated in Figure below.
FAQ
1. Question: Will this work with the Juniper?
Answer: Yes, it will.
2. Question: Is it possi le to order 400 to 500 of these?
Answer: Of course! Please contact us at "sales2@htfuture.com", we will offer you a reduced price for this bulk order. Look forward to cooperate with you.
3. Question: Does it works with any fiber cable such as om1, om2, om3, om4 multimode fiber cables?
Answer: Yes, OM1, OM2, OM3, OM4 LC to LC duplex multimode fiber cables can all work with this module.
4. Q: Do you offer 40G QSFP+ transeivers that operate at an industrial temperature range?
A: Sorry, 40G QSFP+ transceiver that operate at an industrial temperature range are currently not available, but in development. Please stay tuned.
5. Q: What kinds of custom choices are offered in HTFuture?
A: As for customized transceivers, HTFuture offers regular custom choices such as compatibility, transmission distance, operating temperature, label pattern, label colors and etc. What's more, HTFuture welcomes any inquiry for customized products and solutions for all need and specifications.
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