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Finisar FTL4C2QE2C 40G LM4 QSFP+ 140 m OM3
40 Gb/s 40G LM4 (40GBASE-LR4 adapted to duplex MMF) QSFP+ transceiver, CWDM 1264.5–1337.5 nm (4 lanes), up to 140 m OM3 / 160 m OM4, commercial (0 to 70 °c) temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTL4C2QE2C
- Family
- FTL4C2QE2C
- Category
- Fiber optic transceiver modules
- Datasheet
- FTL4C2QE2C datasheet (PDF)
FTL4C2QE2C specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTL4C2QE2C |
| Product family | FTL4C2QE2C |
| Form factor | QSFP+ |
| Standards / application | IEEE 802.3ba 40GBASE-LR4 (LM4 over MMF); QSFP+ MSA; SFF-8436/8636 |
| Data rate | 41.2 Gb/s aggregate (4 × 10.3125 GBd) |
| Wavelength | CWDM 1264.5–1337.5 nm (4 lanes) |
| Laser | Uncooled 4 × 10G CWDM DFB |
| Reach | 140 m OM3 / 160 m OM4 |
| Connector | Dual LC (duplex MMF) |
| Tx output power | −7.0 to +4.3 dBm/lane (avg) |
| Rx sensitivity | −10.5 dBm/lane (OMA) |
| Rx overload / max input | +4.3 dBm/lane avg max |
| Extinction ratio | 3.5 dB min |
| Supply voltage | 3.3 V (3.1–3.47 V) |
| Power dissipation | 3.5 W max |
| Operating temperature | Commercial (0 to 70 °C) |
| Diagnostics | Digital diagnostics over I2C |
| Compliance | QSFP+ MSA; RoHS-6; Class 1 laser |
| Lifecycle | Current production |
Optical and electrical values are from the Finisar / Coherent family datasheet; temperature grade is per part number. Confirm critical values with us before ordering.
About the Finisar FTL4C2QE2C
The Finisar FTL4C2QE2C (now a Coherent Corp. product, formerly II-VI) is a QSFP+ 40G LM4 (40GBASE-LR4 adapted to duplex MMF) optical transceiver for 40 Gb/s links at CWDM 1264.5–1337.5 nm (4 lanes) over Duplex MMF, LC, with reach up to 140 m OM3 / 160 m OM4. It is a commercial-temperature part rated 0 to 70 °C. Typical uses: 40G Ethernet aggregation, spine links and 4 × 10G breakout.
- Hot-pluggable QSFP+
- 40G over duplex multimode with LC connectors
- 41.2 Gb/s aggregate
- < 3.5 W power
- Up to 140 m OM3 / 160 m OM4
FTL4C2QE2C: frequently asked questions
What is the Finisar FTL4C2QE2C?
The FTL4C2QE2C is a Finisar QSFP+ transceiver for 40G LM4 (40GBASE-LR4 adapted to duplex MMF) at 40 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for 40G Ethernet aggregation, spine links and 4 × 10G breakout.
Anything to note about the FTL4C2QE2C?
Replacement for FTL4C2QE1C; optical values from the FTL4C2QE1C datasheet (same family).
What is the optical power budget of the FTL4C2QE2C?
Per the Finisar family datasheet, the FTL4C2QE2C transmits −7.0 to +4.3 dBm/lane (avg) and has a receiver sensitivity of −10.5 dBm/lane (OMA). Maximum receiver input is +4.3 dBm/lane avg max.
Does the FTL4C2QE2C support DDM / digital diagnostics?
Yes. Digital diagnostics over I2C. Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
What is the maximum distance of the FTL4C2QE2C?
The FTL4C2QE2C is specified for up to 140 m OM3 / 160 m OM4 over Duplex MMF, LC. Long-reach optics may need an attenuator on short links; we can advise based on your link loss.
Which fiber and connector does the FTL4C2QE2C use?
The FTL4C2QE2C works at CWDM 1264.5–1337.5 nm (4 lanes) over Duplex MMF, LC. CWDM/DWDM optics must match the channel of your mux/demux port. Both ends of a link must use the same optical standard.
Will the FTL4C2QE2C work in my Cisco, Juniper, Arista or HPE switch?
The FTL4C2QE2C follows the QSFP+ MSA, so it fits any matching port. It carries Finisar's own EEPROM programming; switches that check the module vendor may need a configuration setting or a vendor-branded optic. Send us your switch model and we confirm before dispatch.
What temperature range is the FTL4C2QE2C rated for?
The FTL4C2QE2C is a commercial-temperature part rated 0 to 70 °C. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTL4C2QE2C part number mean?
The FTL4 prefix marks Finisar's 40G QSFP+ family. The C letter in the suffix usually marks the commercial temperature grade. The remaining characters identify the optical design and build variant.
Is your FTL4C2QE2C genuine Finisar?
Yes. Next Gen Networks supplies original Finisar / Coherent modules, not third-party lookalikes or grey-market stock, and shares serial numbers on request.
What is the FTL4C2QE2C price in India and how do I order?
The Finisar FTL4C2QE2C price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number, quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in for a GST quote.
What power does the FTL4C2QE2C need?
It runs from 3.3 V (3.1–3.47 V) with power dissipation of 3.5 W max.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideDownload datasheet
Finisar_FTL4C2QE2C_Datasheet_NextGenNetworks.pdfManufacturer datasheet
Finisar / Coherent family datasheet
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