Juniper JNP-QSFP-40GE-IR4 Compatible 40G QSFP+ IR4 Transceiver Module | 40GBASE-LR4L 1310nm(CWDM4） 2km Duplex LC SMF Bulk Factory Wholesale

• Operating Environment: 0°C–70°C commercial temperature range. Ensure cabinet ventilation to avoid optical power attenuation from overheating.

2.100% Compatibility Verified. Zero-Risk Deployment.

3.No Sampling. No Shortcuts. Every Unit Tested

While others rely on batch sampling, we test every single unit. Each QSFP+ transceiver is individually verified for optical compliance and continuous operational stability before it ships — so performance isn't a gamble, it's a guarantee. See the process yourself: take a virtual tour of our Test Center.

Q1: What triggers unsupported transceiver alert on Juniper Junos switch when installing 40G QSFP+ IR4 replacement module? A: Vendor lock or EEPROM coding mismatch is the root cause. HYTOPTODEVICE pre-programs proper coding for Juniper Junos platforms; if the warning persists, verify port speed settings, upgrade switch firmware or contact us for module recoding service.

Q2: Can I pair HYTOPTODEVICE 40G QSFP+ IR4 third-party transceiver with OEM branded optic on opposite end of single-mode fiber link? A: Yes, mixed OEM and third-party transceivers can operate together on the same fiber link. Both sides only need to follow 40GBASE-IR4/LR4 standard and use single-mode fiber, different transceiver brands will not interrupt the optical connection.

Q3: Can Juniper compatible 40G QSFP+ IR4 transceiver split to 4×10G ports just by adding a simple breakout cable? A: Simple breakout cable cannot split this 40G IR4 signal to independent 10G ports. Unlike SR4, its four 10G lanes share one fiber pair via WDM, so CWDM mux/demux or active media converter is required for 4×10G separation.

Q4: Does HYTOPTODEVICE 40G QSFP+ IR4 transceiver support DDM DOM alarm reporting for Juniper QFX series switches? A: This IR4 module fully supports standard DDM/DOM alarm functions. It outputs per-wavelength temperature, voltage, transmit and receive power data via standard MSA registers for your Juniper switch to read.

Q5: Which fiber type is required to deploy JNP-QSFP-40GE-IR4 compatible 40G QSFP+ IR4 transceiver correctly? A: This transceiver only works with standard single-mode fiber G.652 or G.657. Multimode fiber cannot support IR4 operation; multimode fiber is exclusively for SR4 optical modules.

Q6: Can my existing single-mode fiber cabling support future 100G network upgrade when using 40G QSFP+ IR4 transceivers? A: Your existing duplex single-mode fiber plant can be reused for later 100G LR4 migration. The same fiber cabling meets 100G LR4 requirements; you only need to upgrade switch ports and optical transceivers.

Q7: What fiber patch cable specifications match HYTOPTODEVICE 40G QSFP+ IR4 transceiver for Juniper deployments? A: You need duplex LC-LC OS2 single-mode patch or trunk cables. Both fiber ends must use LC connectors with UPC polish, which is the standard interface for this 40G IR4 module.

Q8: Can I reuse existing installed single-mode trunk fiber cables for Juniper 40G QSFP+ IR4 optical links? A: Most existing single-mode trunk cables are reusable for this 40G IR4 link. Confirm they are duplex LC OS1/OS2 fiber and total insertion loss stays under the IR4 power budget before deployment.

Q9: How to confirm HYTOPTODEVICE 40G QSFP+ IR4 transceiver is genuine new stock instead of counterfeit or refurbished? A: You can verify authenticity with serial traceability and factory test documentation. HYTOPTODEVICE provides 4-wavelength test reports, batch records and DOA warranty support to prove genuine new modules.

Q10: What compliance certifications come with HYTOPTODEVICE Juniper compatible 40G QSFP+ IR4 transceiver modules? A: Our 40G IR4 transceivers carry CE, FCC, RoHS and REACH certifications under ISO9001 controlled manufacturing. Contact HYTOPTODEVICE to request certification copies before bulk purchase.

Q11: Will HYTOPTODEVICE 40G QSFP+ IR4 transceiver performance degrade significantly after long continuous runtime inside data center racks? A: Slow per-lane aging is normal and trackable via DDM readings. Sudden performance drops are caused by fiber contamination, overheating or ESD damage rather than natural module aging.

Q12: Why is HYTOPTODEVICE 40G QSFP+ IR4 transceiver price cheaper than original Juniper OEM optical modules? A: Our lower price comes from direct factory supply without OEM brand premium and multi-layer channel markup. HYTOPTODEVICE compatible modules deliver identical performance for standard 40GBASE-IR4 fiber links.

Q13: What RMA support will I receive if my HYTOPTODEVICE 40G QSFP+ IR4 transceiver arrives DOA dead on arrival? A: HYTOPTODEVICE provides free DOA replacement within 30 days of receipt. Keep original packaging and test logs ready to speed up the RMA approval and replacement process.

Q14: Can I get free sample units of Juniper JNP-QSFP-40GE-IR4 compatible 40G QSFP+ IR4 transceiver for pre-project validation? A: HYTOPTODEVICE offers discounted or qualified samples for bulk buyers, and sample cost can be credited back on your first large order. This lets you test compatibility on Juniper switches before full deployment.

Q15: What is the correct installation method for 40G QSFP+ IR4 transceiver into Juniper QFX switch port? A: Align the module keyway and insert gently then latch into the port. Never force insertion, as misalignment may scratch the module internal contacts and damage the Juniper switch port.

Q16: How to troubleshoot offline fiber link after installing HYTOPTODEVICE 40G QSFP+ IR4 transceiver on Juniper switch? A: Follow a fixed troubleshooting sequence to locate the root cause. Check module seating, LC connector cleanliness, TX/RX fiber polarity, fiber type, link distance, total insertion loss and DDM per-lane readings step by step.