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Finisar FTR-1621T-55 CWDM multi-rate, extended GBIC CWDM 1551nm
up to 2.125 Gb/s CWDM multi-rate, extended temp (non-RoHS) GBIC transceiver, CWDM 1551nm, extended temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTR-1621T-55
- Family
- FTR-1621T CWDM GBIC
- Category
- Fiber optic transceiver modules
- Datasheet
- FTR-1621T-55 datasheet (PDF)
FTR-1621T-55 specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTR-1621T-55 |
| Product family | FTR-1621T CWDM GBIC |
| Form factor | GBIC |
| Standards / application | IEEE 802.3 GbE, Fibre Channel FC-PH/PH2/PH3, SONET OC-12/OC-48, GBIC Spec Rev 5.5 |
| Data rate | 0.622–2.7 Gb/s |
| Wavelength | 1470/1490/1510/1530/1550/1570/1590/1610 nm (8 CWDM channels); centre (x−4) to (x+6) nm |
| Laser | Cooled CWDM DFB |
| Receiver | APD |
| Reach | Dispersion penalty 2.5 dB @80 km (link budget not captured) |
| Tx output power | −3 to +2 dBm |
| Rx sensitivity | −26.0 dBm @2.5 Gb/s, BER<10⁻¹² (−28.0 dBm @ BER<10⁻⁹) |
| Rx overload / max input | −7 dBm |
| Extinction ratio | 8.2 dB |
| Supply voltage | 5 V (4.75–5.25 V) |
| Power dissipation | Supply current 280–450 mA (as printed) |
| Operating temperature | Extended |
| Diagnostics | Digital diagnostic functions via 2-wire serial bus (Module Definition '4' GBICs) |
| Compliance | CDRH and IEC-825 Class 1 laser product |
| Lifecycle | Legacy / end-of-life |
| Variant note | Wavelength 1550 nm |
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 FTR-1621T-55
The Finisar FTR-1621T-55 (now a Coherent Corp. product, formerly II-VI) is a GBIC CWDM multi-rate, extended temp (non-RoHS) optical transceiver for up to 2.125 Gb/s links at CWDM 1551nm over SMF. It is an extended-temperature part. It belongs to Finisar's FTR-1621T CWDM GBIC family, which has 8 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: Gigabit Ethernet, 1/2/4G Fibre Channel SAN, SONET OC-48 / STM-16 and CWDM/DWDM metro links.
- All Metro data protocols from 622 Mb/s to 2.7 Gb/s
- Cooled CWDM DFB laser transmitter
- APD receiver technology
- Extended temperature range −40 °C to 85 °C
- Standard GBIC footprint
- Metal enclosure for lower EMI
FTR-1621T-55: frequently asked questions
What is the Finisar FTR-1621T-55?
The FTR-1621T-55 is a Finisar GBIC transceiver for CWDM multi-rate, extended temp (non-RoHS) at up to 2.125 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 FTR-1621T-55?
Share your link length and fibre type and we will confirm the reach of the FTR-1621T-55 from the Finisar datasheet before you order.
What is the optical power budget of the FTR-1621T-55?
Per the Finisar family datasheet, the FTR-1621T-55 transmits −3 to +2 dBm and has a receiver sensitivity of −26.0 dBm @2.5 Gb/s, BER<10⁻¹² (−28.0 dBm @ BER<10⁻⁹). Maximum receiver input is −7 dBm.
Does the FTR-1621T-55 support DDM / digital diagnostics?
Yes. Digital diagnostic functions via 2-wire serial bus (Module Definition '4' GBICs). Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTR-1621T-55 use?
The FTR-1621T-55 works at CWDM 1551nm over SMF. 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 FTR-1621T-55 work in my Cisco, Juniper, Arista or HPE switch?
The FTR-1621T-55 follows the GBIC 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.
FTR-1621T-55 vs FTR-1621T-47: what is the difference?
Both are in Finisar's FTR-1621T CWDM GBIC family. They differ in wavelength (CWDM 1551nm vs CWDM 1471nm). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FTR-1621T-55 rated for?
The FTR-1621T-55 is an extended-temperature part. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTR-1621T-55 part number mean?
The FTR- prefix marks Finisar's GBIC family. The E letter in the suffix usually marks the extended temperature grade. The remaining characters identify the optical design and build variant.
Is the FTR-1621T-55 still available?
The FTR-1621T-55 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 FTR-1621T-55 price in India and how do I order?
The Finisar FTR-1621T-55 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 FTR-1621T-55 need?
It runs from 5 V (4.75–5.25 V) with power dissipation of Supply current 280–450 mA (as printed).
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
Related Finisar parts
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