General Specifications
Parameter
Details
Form Factor
QSFP28 MSA-compliant, hot-pluggable
Data Rate
103.125 Gb/s (4x25.78125 Gb/s, NRZ encoding)
Transmission Distance
Up to 80 km (with KR4-FEC)
Fiber Type
Single-Mode Fiber (SMF, 9/125 µm)
Connector
Simplex LC
Laser Type
LAN-WDM EML (Electric Absorption Modulated Laser)
Receiver Type
PIN photodetector with SOA (Semiconductor Optical Amplifier)
Power Supply
Single +3.3V (±5%)
Power Consumption
<5.5W (commercial grade)
Operating Temperature
0°C to +70°C
Compliance
EU Directive 2015/863/EU (RoHS), QSFP28 MSA
Optical Specifications
Transmitter
Range/Value
Center Wavelengths (Lanes 0–7)
TX Lanes: 1273, 1278, 1282, 1286, 1296, 1300, 1305, 1309 nm (LAN-WDM)
Total Launch Power (100G)
7 dBm (min) – 12.5 dBm (max)
Average Launch Power per Lane
1 dBm (min) – 6.5 dBm (max)
OMA per Lane
2 dBm (min) – 6.5 dBm (max)
Extinction Ratio (ER)
≥8.2 dB
RIN (OMA)
≤-130 dB/Hz
Optical Return Loss Tolerance
20 dB
Side Mode Suppression Ratio
≥30 dB
Receiver
RX Lanes: 1295, 1300, 1305, 1309, 1273, 1278, 1282, 1286 nm
Receiver Sensitivity (Average)
≤-27 dBm (BER ≤5E-5)
LOS Assert/De-Assert
Assert: ≤-40 dBm / De-Assert: ≥-28 dBm
Damage Threshold
+5.5 dBm (per lane)
Electrical Specifications
Transmitter Input
Data Rate per Lane
25.78125 Gb/s
Differential Voltage (pk-pk)
900 mV
Common Mode Voltage
-350 mV – 2850 mV
Transition Time (20–80%)
≤10 ps
Receiver Output
Differential Voltage Swing
900 mV (pk-pk)
Eye Width (EW15)
≥0.57 UI
Eye Height (EH15)
≥228 mV
Common Mode Noise (RMS)
≤17.5 mV
Digital Diagnostics (DDM)
Accuracy
Temperature Monitoring
±3.0°C
Supply Voltage Monitoring
±5%
Transmit/Receive Power Monitoring
±3.0 dB
Bias Current Monitoring
±10%
Pin Configuration (QSFP28 Connector)
Pin
Symbol
Description
Logic Type
1
GND
Ground
—
2, 3
Tx2n, Tx2p
Transmitter Lane 2 (Inverted/Non-Inverted)
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