Ascent’s QSFP28-100G-LP80 is designed for 80km optical communication applications. This module contains 4-lane optical transmitter, 4-lane optical receiver and module management block including 2 wire serial inter-face. The optical signals are multiplexed to a single-mode fiber through an industry standard LC connector. Ascent’s QSFP28-100G-LP80 is MSA compatible 100GBASE-ZR4 QSFP28 (Quad Small Form-Factor Pluggable 28) transceiver, operating over a pair of single- mode optical fibers with four independent optical communication lanes separated from each other using LAN WDM technology. It is widely deployed by Internet Service Provider (ISP) Fiber to the Home Aggregation and Backbone, Mobile Operator Core Networks and Mobile Backhaul and Data Center networking site interconnections. The module uses EML cooled 4x25Gb/s LAN WDM TOSA (1295.56, 1300.05, 1304.58, 1309.14nm) laser transmitters and 4x25Gb/s SOA+PIN receivers. It has a minimum guaranteed optical budget of 27 dB (with host FEC), which in most cases is enough to reach 80 km distance (with host FEC) and 40 km distance (without host FEC) using a single-mode cable. The module supports DDM/DOM optical diagnostics, which provide diagnostic information about the present operating conditions. Additionally, the module supports a KR4 FEC (Forward Error Correction) function which will help the receiving side detect and correct bit errors and improve the overall quality of the link.
• Support line rates from 103.125 Gb/s
• Lane bit rate 25.78 Gb/s 100GE
• Up to 80km transmission with KR4-FEC
• LAN WDM EML laser and PIN receiver with SOA
• Support Multi-Pin function with IntL/RxLOSL and LPMode/TxDIS
• High speed I/O electrical interface (CAUI-4)
• I2C interface with integrated Digital Diagnostic monitoring
• QSFP28 MSA package with duplex LC connector
• Single +3.3V power supply dissipation
Commercial:< 5.5W
Industrial:<6.5W
• Temperature Range:
Commercial:0°C to +70°C
Industrial:-40°C to +85°C
• Complies with EU Directive 2015/863/EU
Parameter | Symbol | Min. | Max. | Unit | Notes |
Storage Temperature | Ts | -40 | +85 | °C | |
Supply Voltage | Vcc | -0.5 | +4.0 | V | |
Operating Relative Humidity | RH | +85 | % |
Parameter | Symbol | Min. | Typ. | Max. | Unit | Notes |
Operating Case Temperature | Top | 0 | +70 | °C | QSFP28-100G-LP80 | |
-40 | +85 | °C | QSFP28-100G-L80A | |||
Power Supply Voltage | Vcc | 3.13 | 3.3 | 3.47 | V | |
Power Supply Current | Icc | 1.67 | A | QSFP28-100G-LP80 | ||
1.97 | A | QSFP28-100G-L80A | ||||
Maximum Power Consumption | PD | 5.5 | W | QSFP28-100G-LP80 | ||
6.5 | W | QSFP28-100G-L80A | ||||
Aggregate Bit Rate | BRAVE | 103.125 | Gb/s | |||
Lane Bit Rate | BRLANE | 25.78125 | Gb/s | |||
Transmission Distance | TD | 80 | km | |||
Coupled Fiber | Single mode fiber | 9/125um SMF |
Optical and Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Notes | |||
Transmitter | |||||||||
Signaling Speed per Lane | 25.78125 | Gbps | |||||||
Lane Wavelength | L0 | 1294.53 | 1295.56 | 1296.59 | nm | ||||
L1 | 1299.02 | 1300.05 | 1301.09 | nm | |||||
L2 | 1303.54 | 1304.58 | 1305.63 | nm | |||||
L3 | 1308.09 | 1309.14 | 1310.19 | nm | |||||
Total Launch Power, 100GE | PT | 7 | 12.5 | dBm | 1 | ||||
Average Launch Power per Lane, | Pavg | 1 | 6.5 | dBm | 1 | ||||
OMA, each Lane | POMA | 2 | 6.5 | dBm | 1 | ||||
Difference in Launch Power between Any Two Lanes(Average and OMA) between Any Two Lanes (OMA) | Ptx,diff | 3 | dB | ||||||
Average Output Power (Laser Turn off) | Poff | -30 | dBm | ||||||
Side Mode Suppression Ratio | SMSR | 30 | dB | ||||||
Extinction Ratio, 100GE | ER | 8.2 | dB | ||||||
RIN20OMA | RIN | -130 | dB/Hz | ||||||
Optical Return Loss Tolerance | TOL | 20 | dB | ||||||
Transmitter Reflectance | RT | -12 | dB | ||||||
Optical Eye Mask | {0.25,0.4, 0.45, 0.25, 0.28, 0.4} | % | 2 | ||||||
Receiver | |||||||||
Signaling Rate, each Lane | 25.78125 | Gbps | |||||||
Center Wavelength Lane 0 | λ0 | 1294.53 | 1295.56 | 1296.59 | nm | ||||
Center Wavelength Lane 1 | λ1 | 1299.02 | 1300.05 | 1301.09 | nm | ||||
Center Wavelength Lane 2 | λ2 | 1303.54 | 1304.58 | 1305.63 | nm | ||||
Center Wavelength Lane 3 | λ3 | 1308.09 | 1309.14 | 1310.19 | nm | ||||
Damage threshold , each Lane | Pdamage | 5.5 | dBm | ||||||
Average Receive Power, each Lane | -28 | -6 | dBm | 3 | |||||
Receiver Sensitivity Average, each Lane | SEN | -27 | dBm | 3 | |||||
Los Assert | LosA | -40 | dBm | ||||||
Los De-assert | LosDA | -28 | dBm | ||||||
Los Hysteresis | LosH | 0.5 | dB | ||||||
Parameter | Symbol | Min. | Typ. | Max. | Unit | Notes |
Transmitter(Module Input) | ||||||
Data Rate, each Lane | 25.78125 | Gbps | ||||
Differential Voltage Pk-Pk | Vpp | 900 | mV | 1 | ||
Common Mode Voltage | Vcm | -350 | 2850 | mV |
2 | |
Transition Time | Trise/Tf all | 10 | ps | |||
Receiver (Module Output) | ||||||
Data Rate, each Lane | 25.78125 | Gbps | ||||
Common Mode Noise, RMS | Vrms | 17.5 | mV | |||
Differential Output Voltage Swing | Vout, pp | 900 | mV | |||
Eye Width | EW15 | 0.57 | UI | |||
Eye Height | EH15 | 228 | mV | |||
Differential Termination Resistance Mismatch | 10 | % | 1 | |||
Transition Time | Trise/Tf all | 12 | ps |
Parameter | Range | Unit | Accuracy | Calibration |
Commercial Temperature | 0 to 70 | °C | ±3 | Internal / External |
Industrial Temperature | -40 to +85 | °C | ±3 | Internal / External |
Voltage | 3.0 to 3.6 | V | ±3 | Internal / External |
Bias Current | 30 to 100 | mA | ±10% | Internal / External |
Tx Power | 1 to 6.5 | dBm | ±3dB | Internal / External |
Rx Power | -29 to 4.5 | dBm | ±3dB | Internal / External |
The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA). The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.
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