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Finisar FTLX3811M337 DWDM 80km multirate XFP 1547.72nm 80km
10 Gb/s class DWDM 80km multirate XFP transceiver, 1547.72nm (ITU C37), up to 80km, commercial temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTLX3811M337
- Family
- FTLX3811
- Category
- Fiber optic transceiver modules
- Datasheet
- FTLX3811M337 datasheet (PDF)
FTLX3811M337 specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTLX3811M337 |
| Product family | FTLX3811 |
| Form factor | XFP |
| Standards / application | DWDM 10G SONET/SDH, 10G Ethernet, 10G Fibre Channel, 10GbE with FEC; XFP MSA |
| Data rate | 9.95 to 11.1 Gb/s |
| Wavelength | C-band, 100 GHz ITU grid |
| Laser | Temperature-stabilized DWDM-rated EML |
| Reach | 80 km |
| Connector | Duplex LC |
| Power dissipation | < 3.5 W |
| Operating temperature | Commercial |
| Diagnostics | Built-in digital diagnostic functions |
| Compliance | RoHS-6 (lead-free) |
| Lifecycle | Legacy / end-of-life |
| Variant note | Suffix = ITU channel 37 |
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 FTLX3811M337
The Finisar FTLX3811M337 (now a Coherent Corp. product, formerly II-VI) is a XFP DWDM 80km multirate optical transceiver for 10 Gb/s class links at 1547.72nm (ITU C37) over Duplex SMF LC, with reach up to 80km. It is a commercial-temperature part. It belongs to Finisar's FTLX3811 family, which has 3 orderable variants that differ by temperature grade, latch, receiver build or wavelength channel. This is a legacy Finisar part; we help buyers find remaining stock or a current Coherent alternative. Typical uses: 10G Ethernet, 10G Fibre Channel, SONET OC-192 / OTN and DWDM metro / DCI links.
- Supports 9.95Gb/s to 11.1Gb/s bit rates
- Maximum link length of 80km
- Temperature-stabilized DWDM-rated EML transmitter
- 100GHz ITU Grid, C-Band
- Power dissipation <3.5W
- Built-in digital diagnostic functions
FTLX3811M337: frequently asked questions
What is the Finisar FTLX3811M337?
The FTLX3811M337 is a Finisar XFP transceiver for DWDM 80km multirate at 10 Gb/s class. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for 10G Ethernet, 10G Fibre Channel, SONET OC-192 / OTN and DWDM metro / DCI links.
What is the maximum distance of the FTLX3811M337?
The FTLX3811M337 is specified for up to 80km over Duplex SMF 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 FTLX3811M337 use?
The FTLX3811M337 works at 1547.72nm (ITU C37) over Duplex SMF LC. CWDM/DWDM optics must match the channel of your mux/demux port. Both ends of a link must use the same optical standard.
Does the FTLX3811M337 support DDM / digital diagnostics?
Yes. Built-in digital diagnostic functions. Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Will the FTLX3811M337 work in my Cisco, Juniper, Arista or HPE switch?
The FTLX3811M337 follows the XFP 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.
FTLX3811M337 vs FTLX3811M327: what is the difference?
Both are in Finisar's FTLX3811 family. They differ in wavelength (1547.72nm (ITU C37) vs 1555.75nm (ITU C27)). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FTLX3811M337 rated for?
The FTLX3811M337 is a commercial-temperature part. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTLX3811M337 part number mean?
The FTLX prefix marks Finisar's 10G family (SFP+, XFP, X2, XENPAK). The C letter in the suffix usually marks the commercial temperature grade. The remaining characters identify the optical design and build variant.
Is the FTLX3811M337 still available?
The FTLX3811M337 is a legacy Finisar part, so new production is limited or ended. Next Gen Networks helps source remaining genuine stock and can suggest a current Coherent alternative with the same reach and wavelength.
What is the FTLX3811M337 price in India and how do I order?
The Finisar FTLX3811M337 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 FTLX3811M337 need?
It runs from the standard host supply with power dissipation of < 3.5 W.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
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