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Finisar FTLC1155RGPLB 100G CWDM4 Gen2 QSFP28 2km
100 Gb/s 100G CWDM4 Gen2 QSFP28 transceiver, CWDM 1271-1331nm, up to 2km.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTLC1155RGPLB
- Family
- FTLC1155
- Category
- Fiber optic transceiver modules
- Datasheet
- FTLC1155RGPLB datasheet (PDF)
FTLC1155RGPLB specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTLC1155RGPLB |
| Product family | FTLC1155 |
| Form factor | QSFP28 |
| Standards / application | QSFP28 MSA; CWDM4 MSA; portions of IEEE 802.3bm |
| Data rate | 103.1 Gb/s aggregate; 4x 25.78125 GBd |
| Wavelength | 1264.5–1277.5 / 1284.5–1297.5 / 1304.5–1317.5 / 1324.5–1337.5 nm |
| Laser | 4x25Gb/s CWDM transmitter (DFB), Class 1 |
| Receiver | 4 photodetectors, 25.78 Gb/s each |
| Reach | 2 km SMF with KR4 FEC (5 dB loss budget); RGPLD: 10 km |
| Connector | Duplex LC |
| Tx output power | Avg max 2.5 dBm per lane |
| Rx sensitivity | −10 dBm OMA unstressed; −7.3 dBm stressed |
| Rx overload / max input | Saturation 2.5 dBm OMA; damage threshold 3.5 dBm per lane |
| Extinction ratio | 3.5 dB |
| Supply voltage | 3.3 V (3.135–3.465 V) |
| Power dissipation | < 3.5 W (extended/industrial-temp variants < 4.5 W) |
| Operating temperature | 0 to 70 °C case (RGPL); −20 to 85 °C (RGPL3); −40 to 85 °C (RGPLD) |
| Diagnostics | I2C management/diagnostics interface |
| Compliance | RoHS-6 (2011/65/EU) |
| Lifecycle | Ask for availability |
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 FTLC1155RGPLB
The Finisar FTLC1155RGPLB (now a Coherent Corp. product, formerly II-VI) is a QSFP28 100G CWDM4 Gen2 optical transceiver for 100 Gb/s links at CWDM 1271-1331nm over SMF duplex (LC), with reach up to 2km. It belongs to Finisar's FTLC1155 family, which has 11 orderable variants that differ by temperature grade, latch, receiver build or wavelength channel. Typical uses: 100G Ethernet data-centre fabrics, DCI, metro aggregation and InfiniBand EDR.
- Hot-pluggable QSFP28 form factor
- Adaptive CTLE
- 4x25G retimed electrical interface
- Single 3.3V power supply
- I2C management interface
FTLC1155RGPLB: frequently asked questions
What is the Finisar FTLC1155RGPLB?
The FTLC1155RGPLB is a Finisar QSFP28 transceiver for 100G CWDM4 Gen2 at 100 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for 100G Ethernet data-centre fabrics, DCI, metro aggregation and InfiniBand EDR.
What is the maximum distance of the FTLC1155RGPLB?
The FTLC1155RGPLB is specified for up to 2km over SMF duplex (LC). Long-reach optics may need an attenuator on short links; we can advise based on your link loss.
What is the optical power budget of the FTLC1155RGPLB?
Per the Finisar family datasheet, the FTLC1155RGPLB transmits Avg max 2.5 dBm per lane and has a receiver sensitivity of −10 dBm OMA unstressed; −7.3 dBm stressed. Maximum receiver input is Saturation 2.5 dBm OMA; damage threshold 3.5 dBm per lane.
Does the FTLC1155RGPLB support DDM / digital diagnostics?
Yes. I2C management/diagnostics interface. Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTLC1155RGPLB use?
The FTLC1155RGPLB works at CWDM 1271-1331nm over SMF duplex (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 FTLC1155RGPLB work in my Cisco, Juniper, Arista or HPE switch?
The FTLC1155RGPLB follows the QSFP28 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.
FTLC1155RGPLB vs FTLC1155RGPL3: what is the difference?
Both are in Finisar's FTLC1155 family. They differ in build / application (100G CWDM4 Gen2 vs 100G CWDM4 extended temperature). Pick the variant that matches your temperature, latch and wavelength needs.
What does the FTLC1155RGPLB part number mean?
The FTLC prefix marks Finisar's 100G family (QSFP28 / CFP / CFP2 / CFP4). The remaining characters identify the optical design and build variant.
Is your FTLC1155RGPLB 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 FTLC1155RGPLB price in India and how do I order?
The Finisar FTLC1155RGPLB 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 FTLC1155RGPLB need?
It runs from 3.3 V (3.135–3.465 V) with power dissipation of < 3.5 W (extended/industrial-temp variants < 4.5 W).
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
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