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Finisar FTCD4323E2PCL 400G-LR4-10 QSFP-DD 1310nm CWDM4 10 km
400 Gb/s 400G-LR4-10 (FR4+) QSFP-DD transceiver, 1310nm CWDM4, up to 10 km, commercial temperature.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTCD4323E2PCL
- Family
- FTCD4323
- Category
- Fiber optic transceiver modules
- Datasheet
- FTCD4323E2PCL datasheet (PDF)
FTCD4323E2PCL specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTCD4323E2PCL |
| Product family | FTCD4323 |
| Form factor | QSFP-DD |
| Standards / application | 400G-LR4-10 Technical Specification Rev1.0; IEEE 802.3bs; QSFP-DD MSA; QSFP28 MSA |
| Data rate | 425 Gb/s aggregate |
| Wavelength | 1264.5–1277.5, 1284.5–1297.5, 1304.5–1317.5, 1324.5–1337.5 nm |
| Laser | 4-lane CWDM (Class 1) |
| Receiver | PIN |
| Reach | 10 km on SMF (G.652) |
| Connector | Duplex LC |
| Tx output power | −2.7 to 5.1 dBm per lane |
| Rx sensitivity | −6.8 dBm OMAouter (TECQ < 1.4 dB) |
| Rx overload / max input | 6.1 dBm damage threshold |
| Extinction ratio | 3.5 dB min |
| Supply voltage | 3.3 V (3.135–3.465 V) |
| Power dissipation | < 12 W |
| Operating temperature | Commercial |
| Diagnostics | I2C-based diagnostics interface |
| Compliance | RoHS-6 |
| Lifecycle | Legacy / end-of-life |
| Variant note | 400GBASE-LR4 10 km (datasheet) |
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 FTCD4323E2PCL
The Finisar FTCD4323E2PCL (now a Coherent Corp. product, formerly II-VI) is a QSFP-DD 400G-LR4-10 (FR4+) optical transceiver for 400 Gb/s links at 1310nm CWDM4 over Duplex SMF, LC, with reach up to 10 km. It is a commercial-temperature part. It belongs to Finisar's FTCD4323 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: 400G data-centre spine, AI/ML clusters and 400ZR / ZR+ coherent DCI.
- Hot-pluggable QSFP-DD type 2 form factor
- Supports 425Gb/s aggregate bit rate
- Power dissipation < 12W
- Case temperature range of 0°C to +70°C
- Single 3.3V power supply
- Maximum link length of 10km on SMF
FTCD4323E2PCL: frequently asked questions
What is the Finisar FTCD4323E2PCL?
The FTCD4323E2PCL is a Finisar QSFP-DD transceiver for 400G-LR4-10 (FR4+) at 400 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for 400G data-centre spine, AI/ML clusters and 400ZR / ZR+ coherent DCI.
What is the maximum distance of the FTCD4323E2PCL?
The FTCD4323E2PCL is specified for up to 10 km over Duplex SMF, 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 FTCD4323E2PCL?
Per the Finisar family datasheet, the FTCD4323E2PCL transmits −2.7 to 5.1 dBm per lane and has a receiver sensitivity of −6.8 dBm OMAouter (TECQ < 1.4 dB). Maximum receiver input is 6.1 dBm damage threshold.
Does the FTCD4323E2PCL support DDM / digital diagnostics?
Yes. I2C-based diagnostics interface. Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTCD4323E2PCL use?
The FTCD4323E2PCL works at 1310nm CWDM4 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.
Will the FTCD4323E2PCL work in my Cisco, Juniper, Arista or HPE switch?
The FTCD4323E2PCL follows the QSFP-DD 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.
FTCD4323E2PCL vs FTCD4323E3PCL: what is the difference?
Both are in Finisar's FTCD4323 family. They differ in build / application (400G-LR4-10 (FR4+) vs 400GBASE-LR4-10 Gen3). Pick the variant that matches your temperature, latch and wavelength needs.
What temperature range is the FTCD4323E2PCL rated for?
The FTCD4323E2PCL is a commercial-temperature part. Choose an industrial (T) variant for outdoor or uncontrolled sites.
What does the FTCD4323E2PCL part number mean?
The FTCD prefix marks Finisar's 400G family. The C letter in the suffix usually marks the commercial temperature grade. The remaining characters identify the optical design and build variant.
Is the FTCD4323E2PCL still available?
The FTCD4323E2PCL 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 FTCD4323E2PCL price in India and how do I order?
The Finisar FTCD4323E2PCL 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 FTCD4323E2PCL need?
It runs from 3.3 V (3.135–3.465 V) with power dissipation of < 12 W.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
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