The HANSUN QSFP28 100G-SR4-100m module is a highly integrated 4x25G transceiver focused on reach, bandwidth, density and cost for high port-count 100G systems, and client-side 100G interfaces. Each lane can operate at 25Gbps up to 70m using OM3 fiber or 100m using OM4 fiber. These modules are designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 38-contact edge type connector. The optical interface uses a 12-fiber MTP/MPO connector.
Specifications of QSFP28 100G SR4 100m
Optical Transmitter Performance
Parameter | Symbol | Min | Typical | Max | Unit |
Signaling Speed per Lane | 25.78125 ± 100ppm | ||||
Center Wavelength | λC | 840 | 850 | 860 | nm |
RMS spectral width | ∆λ | – | – | 0.6 | nm |
Average Launch Power per Lane | TXPx | -8.5 | – | 2.4 | dBm |
Transmit OMA per Lane | TxOMA | -6.4 | – | 3 | dBm |
Launch Power [OMA] minus TDEC per Lane | P-TDEC | -7.3 | – | – | dBm |
Extinction Ratio | ER | 2 | – | – | dB |
Optical Return Loss Tolerance | ORL | – | – | 12 | dB |
Encircled Flux | FLX | > 86% at 19 um< 30% at 4.5 um | dBm | ||
Average launch power of OFF transmitter, each lane | – | – | – | -30 | dBm |
Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3} | {0.3, 0.38, 0.45, 0.35, 0.41, 0.5} |
Optical Receiver Performance
Parameter | Symbol | Min | Typical | Max | Unit |
Signaling Speed per Lane | 25.78125 ± 100ppm | ||||
Center Wavelength | λC | 840 | 850 | 860 | nm |
Damage Threshold | DT | 3.4 | – | – | dBm |
Average receive power, each lane | RXPx | -10.3 | – | 2.4 | dbm |
Unstressed Sensitivity (OMA) at 10 x 10-12BER | RxOMA | – | – | 3 | dBm |
Stressed Receiver Sensitivity (OMA) per Lane | SRS | – | – | -5.2 | dBm |
Vertical eye closure penalty, each lane | VECP | – | – | 1.9 | dB |
Stressed eye J2 jitter, per Lane | – | – | – | 0.39 | UI |
Stressed eye J4 jitter, per Lane | – | – | – | 0.53 | UI |
OMA of each aggressor lane | – | – | 3 | dBm |