- Home
- Optical Transceivers
- Finisar (Coherent)
- 2G–4G
- FTLF1721P1BCL
Actual product photos
available on request
To keep listings accurate, we share real photos of the exact FTLF1721P1BCL stock you will receive, including the label, serial number and packaging.
Request photos from our teamPhotos are usually shared within working hours on WhatsApp or email.
Finisar FTLF1721P1BCL OC-48 LR-1 SFP 40km
up to 2.67 Gb/s OC-48 LR-1 / STM L-16.1 multirate (2.67G) SFP transceiver, 1310nm DFB + APD, up to 40km, commercial (−10 to 70 °c) temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTLF1721P1BCL
- Family
- FTLF1721P1
- Category
- Fiber optic transceiver modules
- Datasheet
- FTLF1721P1BCL datasheet (PDF)
FTLF1721P1BCL specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTLF1721P1BCL |
| Product family | FTLF1721P1 |
| Form factor | SFP |
| Standards / application | SONET OC-48 LR-1 / SDH STM L-16.1; OC-12, OC-3; Gigabit Ethernet; 1x/2x Fibre Channel |
| Data rate | 155–2667 Mb/s |
| Wavelength | Tx 1280–1335 nm; Rx 1270–1600 nm |
| Laser | Uncooled 1310 nm DFB |
| Receiver | APD |
| Reach | 45 km @ OC-48 (9/125 µm SMF) |
| Connector | Duplex LC |
| Tx output power | −2 to +3 dBm |
| Rx sensitivity | −27 dBm @ OC-48 |
| Rx overload / max input | −9 dBm |
| Extinction ratio | 9 dB min |
| Supply voltage | 3.3 V (3.00–3.60 V) |
| Power dissipation | <700 mW typical (Icc 230 typ / 300 mA max) |
| Operating temperature | Commercial (−10 to 70 °C) |
| Diagnostics | Digital diagnostics via 2-wire serial interface per SFP MSA (temperature, laser bias, Tx/Rx power, voltage; alarm/warning flags) |
| Compliance | Class 1 laser (US FDA, EN/IEC 60825, EN/IEC 60950); RoHS compliant |
| Lifecycle | Current production |
| Variant note | Narrow extraction bail; −10 to 70 °C |
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 FTLF1721P1BCL
The Finisar FTLF1721P1BCL (now a Coherent Corp. product, formerly II-VI) is a SFP OC-48 LR-1 / STM L-16.1 multirate (2.67G) optical transceiver for up to 2.67 Gb/s links at 1310nm DFB + APD over SMF, with reach up to 40km. It is a commercial-temperature part rated −10 to 70 °C. Typical uses: Gigabit Ethernet, 1/2/4G Fibre Channel SAN, SONET OC-48 / STM-16 and CWDM/DWDM metro links.
- Up to 2.67Gb/s bi-directional data links
- Hot-pluggable SFP footprint
- Built-in digital diagnostic functions
- Uncooled 1310nm DFB laser transmitter
- APD Receiver
- Low power dissipation typically <700mW
FTLF1721P1BCL: frequently asked questions
What is the Finisar FTLF1721P1BCL?
The FTLF1721P1BCL is a Finisar SFP transceiver for OC-48 LR-1 / STM L-16.1 multirate (2.67G) at up to 2.67 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for Gigabit Ethernet, 1/2/4G Fibre Channel SAN, SONET OC-48 / STM-16 and CWDM/DWDM metro links.
What is the maximum distance of the FTLF1721P1BCL?
The FTLF1721P1BCL is specified for up to 40km over SMF. 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 FTLF1721P1BCL?
Per the Finisar family datasheet, the FTLF1721P1BCL transmits −2 to +3 dBm and has a receiver sensitivity of −27 dBm @ OC-48. Maximum receiver input is −9 dBm.
Does the FTLF1721P1BCL support DDM / digital diagnostics?
Yes. Digital diagnostics via 2-wire serial interface per SFP MSA (temperature, laser bias, Tx/Rx power, voltage; alarm/warning flags). Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTLF1721P1BCL use?
The FTLF1721P1BCL works at 1310nm DFB + APD over SMF. Both ends of a link must use the same optical standard.
Will the FTLF1721P1BCL work in my Cisco, Juniper, Arista or HPE switch?
The FTLF1721P1BCL follows the SFP 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 FTLF1721P1BCL rated for?
The FTLF1721P1BCL is a commercial-temperature part rated −10 to 70 °C. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTLF1721P1BCL part number mean?
The FTLF prefix marks Finisar's SFP / SFP28 / SFP56 family (incl. Fibre Channel). The C letter in the suffix usually marks the commercial temperature grade. The remaining characters identify the optical design and build variant.
Is your FTLF1721P1BCL 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 FTLF1721P1BCL price in India and how do I order?
The Finisar FTLF1721P1BCL 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 FTLF1721P1BCL need?
It runs from 3.3 V (3.00–3.60 V) with power dissipation of <700 mW typical (Icc 230 typ / 300 mA max).
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
Related Finisar parts
FTLF1419P1BCL1000BASE-EX / 2G-1G FC, 55kmFTLF1321P1BTLOC-48 SR / STM I-16 multirate, 2kmFTLF1421P1BCLOC-48 IR-1 / STM S-16.1 multirate, 15kmFTLF1421P1BTL-3GCPRI 3G wireless, 15kmFTLF1721P2BTLOC-48 LR-1 / STM L-16.1 multirate, 40kmFTLF1319P1BTL2G/1G FC LW + GbE LX, 10kmGovernment, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
Talk to Sales