
QSFP-100G-FR-A-FL
100G · QSFP28 · 1310nmSMF · 2km · Duplex LC
Need a larger quantity? Request a quote
Questions? Call (888) 874-7574
The FluxLight QSFP-100G-FR-S-FL is a Cisco QSFP-100G-FR-S compatible 100GBASE-FR1 QSFP28 transceiver for 100 Gigabit Ethernet over single-mode fiber up to 2 km. It transmits at 1311 nm, uses a duplex LC connector and supports digital diagnostics (DOM).
The QSFP-100G-FR-S-FL is coded for Cisco and works in the Cisco ports that take the QSFP-100G-FR-S, including Nexus 9100 / 9200 / 9300, Cisco 8000 Routers, ASR 9000 and NCS 5500. Platform Support lists every supported model across 23 platform families.
It meets IEEE 802.3cu 100GBASE-FR1, so it links to any 100GBASE-FR1 optic at the far end, whatever its brand. It follows the QSFP28 MSA. It uses an EML and a PIN receiver, draws at most 4 W and is rated for a case temperature of 0 to 70 °C (commercial grade).
FluxLight guarantees it is compatible with Cisco and covers it with a 10-year warranty.
The operation in excess of any absolute maximum ratings might cause permanent damage to this module.
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Storage Temperature | TS | -40 | 85 | °C |
| Operating Case Temperature | TOP | 0 | 70 | °C |
| Power Supply Voltage | VCC | -0.5 | 3.6 | V |
| Relative Humidity | RH | 0 | 85 | % |
| Parameter | Symbol | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Operating Case Temperature | TC | 0 | 70 | °C | ||
| Power Supply Voltage | VCC | 3.135 | 3.3 | 3.465 | V | |
| Instantaneous Peak Current at Hot Plug | ICC_IP | 1600 | mA | |||
| Sustained Peak Current at Hot Plug | ICC_SP | 1320 | mA | |||
| Maximum Power Dissipation | PD | 4 | W | |||
| Maximum Power Dissipation, Low Power Mode | PDLP | 1.5 | W | |||
| Signaling Rate | SR | 53.125 | GBd | PAM4 | ||
| Control Input Voltage High | VIH | VCC×0.7 | VCC+0.3 | V | ||
| Control Input Voltage Low | VIL | -0.3 | VCC×0.3 | V | ||
| Two-Wire Serial Interface Clock Rate | 400 | kHz | ||||
| Power Supply Noise | 66 | mVpp | 10 Hz – 10 MHz | |||
| Rx Differential Data Output Load | 100 | Ω | ||||
| Operating Distance (SMF) | 2 | 2000 | m |
| Parameter | Symbol | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| Transmitter | |||||
| Center Wavelength | λC | 1304.5 | 1311 | 1317.5 | nm |
| Side Mode Suppression Ratio | SMSR | 30 | dB | ||
| Average Optical Launch Power | POUT | -2.4 | 4 | dBm | |
| Average Launch Power, Transmitter Off | POUT_OFF | -15 | dBm | ||
| Extinction Ratio | ER | 3.5 | dB | ||
| Outer Optical Modulation Amplitude | OMAouter | -0.2 | 4.2 | dBm | |
| Launch Power in OMAouter minus TDECQ, for ER ≥ 4.5 dB | OMAouter−TDECQ | -1.6 | dBm | ||
| Launch Power in OMAouter minus TDECQ, for ER < 4.5 dB | OMAouter−TDECQ | -1.5 | dBm | ||
| Transmitter and Dispersion Eye Closure for PAM4 | TDECQ | 3.4 | dB | ||
| TDECQ − 10·log10(Ceq) | 3.4 | dB | |||
| Transmitter Transition Time | 17 | ps | |||
| RIN17.1OMA | RIN | -136 | dB/Hz | ||
| Optical Return Loss Tolerance | ORLT | 17.1 | dB | ||
| Transmitter Reflectance | TR | -26 | dB | ||
| Receiver | |||||
| Center Wavelength | λC | 1304.5 | 1311 | 1317.5 | nm |
| Damage Threshold | 5.5 | dBm | |||
| Average Receive Power | -6.4 | 4.5 | dBm | ||
| Receive Power (OMAouter) | RP | 4.7 | dBm | ||
| Receiver Reflectance | RR | -26 | dB | ||
| Receiver Sensitivity (OMAouter) | RS | max(-4.5, SECQ-5.9) | dBm | ||
| Stressed Receiver Sensitivity (OMAouter) | SRS | -2.5 | dBm | ||
| Stressed Eye Closure for PAM4 | SECQ | 3.4 | dB | ||
| SECQ − 10·log10(Ceq) | 3.4 | dB | |||
The following digital diagnostic characteristics are defined over the normal operating conditions unless otherwise specified.
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Temperature monitor absolute error | DMI_Temp | -5 | 5 | °C |
| Supply voltage monitor absolute error | DMI_VCC | -0.1 | 0.1 | V |
| Channel RX power monitor absolute error | DMI_RX_Ch | -3 | 3 | dB |
| Channel bias current monitor absolute error | DMI_Ibias_Ch | -10% | 10% | mA |
| Channel TX power monitor absolute error | DMI_TX_Ch | -3 | 3 | dB |
Units: mm


| Pin | Logic | Symbol | Description | Plug Sequence |
|---|---|---|---|---|
| 1 | GND | Ground | 1 | |
| 2 | CML-I | Tx2n | Transmitter Inverted Data Input | 3 |
| 3 | CML-I | Tx2p | Transmitter Non-Inverted Data Input | 3 |
| 4 | GND | Ground | 1 | |
| 5 | CML-I | Tx4n | Transmitter Inverted Data Input | 3 |
| 6 | CML-I | Tx4p | Transmitter Non-Inverted Data Input | 3 |
| 7 | GND | Ground | 1 | |
| 8 | LVTTL-I | ModSelL | Module Select | 3 |
| 9 | LVTTL-I | ResetL | Module Reset | 3 |
| 10 | VccRx | +3.3V Power Supply Receiver | 2 | |
| 11 | LVCMOS-I/O | SCL | 2-Wire Serial Interface Clock | 3 |
| 12 | LVCMOS-I/O | SDA | 2-Wire Serial Interface Data | 3 |
| 13 | GND | Ground | 1 | |
| 14 | CML-O | Rx3p | Receiver Non-Inverted Data Output | 3 |
| 15 | CML-O | Rx3n | Receiver Inverted Data Output | 3 |
| 16 | GND | Ground | 1 | |
| 17 | CML-O | Rx1p | Receiver Non-Inverted Data Output | 3 |
| 18 | CML-O | Rx1n | Receiver Inverted Data Output | 3 |
| 19 | GND | Ground | 1 | |
| 20 | GND | Ground | 1 | |
| 21 | CML-O | Rx2n | Receiver Inverted Data Output | 3 |
| 22 | CML-O | Rx2p | Receiver Non-Inverted Data Output | 3 |
| 23 | GND | Ground | 1 | |
| 24 | CML-O | Rx4n | Receiver Inverted Data Output | 3 |
| 25 | CML-O | Rx4p | Receiver Non-Inverted Data Output | 3 |
| 26 | GND | Ground | 1 | |
| 27 | LVTTL-O | ModPrsL | Module Present | 3 |
| 28 | LVTTL-O | IntL | Interrupt | 3 |
| 29 | VccTx | +3.3V Power Supply Transmitter | 2 | |
| 30 | Vcc1 | +3.3V Power Supply | 2 | |
| 31 | LVTTL-I | LPMode | Low Power Mode | 3 |
| 32 | GND | Ground | 1 | |
| 33 | CML-I | Tx3p | Transmitter Non-Inverted Data Input | 3 |
| 34 | CML-I | Tx3n | Transmitter Inverted Data Input | 3 |
| 35 | GND | Ground | 1 | |
| 36 | CML-I | Tx1p | Transmitter Non-Inverted Data Input | 3 |
| 37 | CML-I | Tx1n | Transmitter Inverted Data Input | 3 |
| 38 | GND | Ground | 1 |
This transceiver is specified as an ESD threshold of 1kV for the high-speed data pins and 2kV for all other electrical input pins, tested per MIL-STD-883, Method 3015.4 / JESD22-A114-A (Human Body Model). However, normal ESD precautions are still required during the handling of this module. This transceiver is shipped in ESD-protective packaging. It should be removed from the packaging and handled only in an ESD-protected environment.
This is a Class 1 Laser Product according to IEC 60825-1:2007. This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated (June 24, 2007).
The following is a list of Finisar Corporation patents Fluxlight has licensed. This licensure recognizes and compensates Finisar for their intellectual property. The QSFP-100G-FR-S-FL like all Fluxlight optical transceivers, is covered by this license agreement. Therefore, Fluxlight customers can rest assured that all products purchased are fully licensed, and our customers are under no potential liability that may ensue from the use of unlicensed optical transceiver products.
U.S. Patent Numbers: 7,184,668 (System and method of protecting eye safety during operation of a fiber optic transceiver), 7,079,775 (Integrated memory mapped controller circuit for fiber optics transceiver), 6,957,021 (Optical transceiver with memory mapped locations), 7,058,310 (System and method for protecting eye safety during operation of a fiber optic transceiver), 6,952,531 (System and method for protecting eye safety during operation of a fiber optic transceiver), 7,162,160 (System and method for protecting eye safety during operation of a fiber optic transceiver), 7,050,720 (Integrated memory mapped controller circuit for fiber optics transceiver)
Original Equipment Manufacturer (OEM) names may be registered trademarks of the respective OEM, and the OEM has neither authorized nor sponsored the use of its trademark or trade name. All OEM names are used for cross reference/comparative purposes only.
This part is covered by our Limited Lifetime Warranty, a 10-year serviceable lifetime, and our 30-Day Money-Back Guarantee. Read the full warranty and return terms.
No reviews yet. If you have used this part, yours would be the first.


550 in stock
Order by 3 PM CT for same-day shipping

100G · QSFP28 · 1310nmSMF · 2km · Duplex LC

100G · QSFP28 · 1310nmSMF · 2km · Duplex LC

100G · QSFP28 · 1310nmSMF · 10km · Duplex LC

100G · QSFP28 · 1310nmSMF · 500m · Duplex LC