• HYTOPTODEVICE EdgeCore  ET7402-PIR4 compatible 100G QSFP28 PSM4 parallel single-mode transceiver 1310nm 500m MPO OS2 SMF
  • HYTOPTODEVICE low power high density 100G PSM4 QSFP28 module for EdgeCore high-capacity data center rack deployment
  • HYTOPTODEVICE plug-and-play EdgeCore compatible 100G PSM4 QSFP28 zero authentication alerts
  • HYTOPTODEVICE EdgeCore  ET7402-PIR4 compatible 100G QSFP28 PSM4 parallel single-mode transceiver 1310nm 500m MPO OS2 SMF
  • HYTOPTODEVICE low power high density 100G PSM4 QSFP28 module for EdgeCore high-capacity data center rack deployment
  • HYTOPTODEVICE plug-and-play EdgeCore compatible 100G PSM4 QSFP28 zero authentication alerts

EdgeCore  ET7402-PIR4 Compatible 100G QSFP28 Transceiver Module | PSM4 1310nm 500m MPO SMF Bulk Factory Wholesale | HYTOPTODEVICE

HYTOPTODEVICE EdgeCore ET7402-PIR4 replacement 100G PSM4 parallel QSFP28 optic, 4×25G 1310nm lanes, 500m MPO OS2 single fiber. Pre-flashed ONIE/OpenSwitch EEPROM zero alarm, full DDM & RS-FEC, fit EdgeCore DCS leaf-spine fabrics and 100G-to-4×25G breakout links. Support Bulk wholesale, private label and custom EEPROM coding for global importers, distributors and integrators.
NO. Brand  Compatible P/N Remarks
1 Cisco  QSFP-100G-PSM4-S
2 Arista Networks QSFP-100G-PSM4
3 Dell  Q28-100G-PSM4-IR
4 Huawei  QSFP28-100G-PSM4
5 HPE  JH420A
6 Juniper  JNP-QSFP-100G-PSM4
7 EdgeCore  ET7402-PIR4
Description
EdgeCore  ET7402-PIR4  Compatible 100G QSFP28 Transceiver | PSM4 1310nm 500m MPO SMF | HYTOPTODEVICE

Product Overview
This HYTOPTODEVICE 100G PSM4 QSFP28 serves as a full 1:1 drop-in substitute for EdgeCore ET7402-PIR4 original optical module.
It delivers steady low-latency transmission on all EdgeCore DCS open network switches running ONIE/OpenSwitch firmware.
It adopts four independent 25G NRZ parallel optical lanes operating at 1310nm wavelength.
Stable 500m signal transmission is supported via MPO-12 APC OS2 single-mode ribbon fiber.
No built-in CWDM multiplexer cuts optical loss and simplifies dense cabinet MPO cable layout.
It fully complies with IEEE 802.3bm and universal QSFP28 MSA industry standards.
Every unit is pre-programmed with EdgeCore-matched EEPROM data to eliminate "unsupported transceiver" system logs.
Integrated RS-FEC error correction and complete DDM real-time monitoring ease daily network O&M work.
Main application scenarios: EdgeCore DCS leaf-spine fabrics, rack trunk lines, HPC server uplinks and 100G-to-4×25G breakout networking.


Key Technical Specifications

EdgeCore Compatible  ET7402-PIR4   Vendor Name HYTOPTODEVICE
Form Factor QSFP28 Max Data Rate 103.125Gbps (4x 25.78Gbps)
Wavelength 1310nm
Max Distance 500m@OS2
Connector MTP/MPO-12 APC Transmitter Type 4xDFB
Cable Type SMF Receiver Type PIN
FEC Support Yes TX Power -5.5~+2dBm
Power Consumption <3.5W Receiver Sensitivity < -10.2dBm
Protocols QSFP28 MSA, SFF-8636, IEEE 802.3‑2012,CAUI-4 Operation Temperature 0 to 70°C (32 to 158°F)


Usage Guidelines & Best Practices

• Fiber Matching Rule: Only MPO-12 APC 8° angled OS2 single-mode ribbon fiber can be used; OM3/OM4 multimode fiber or UPC polished MPO cables will trigger link failure and hardware damage.
• Lane Polarity Control: Confirm MPO fiber lane sequence and polarity match before powering on ports; misaligned lanes lead to severe receive power imbalance and continuous packet loss.
• Distance Restriction: Stable performance is only guaranteed within the standard 500m MSA rated range; extended fiber routes bring excess lane skew and optical attenuation.
• Hot-Plug Support: Modules support live insertion and removal; regularly clean MPO APC end faces to eliminate dust-induced signal distortion.
• Operating Environment: Limit deployment to indoor 0°C–70°C data center environments; avoid fully sealed cabinets with poor ventilation causing persistent overheating.

Full Compatibility List & Supported Network Hardware

1. Supported Hardware & Firmware
HYTOPTODEVICE ET7402-PIR4 compatible PSM4 precisely matches EdgeCore original mechanical and optical parameters.
Custom ONIE/OpenSwitch EEPROM coding blocks third-party authentication warning pop-ups.
Each batch passes physical machine testing to avoid lane imbalance and random link flapping.
Validated EdgeCore DCS Switch Platforms:
• DCS501 (AS7712-32X) 32-port 100G ToR leaf switches
• DCS204 (AS7726-32X) aggregation spine switches
• DCS801 high-density open data center switches
• DCS500 64-port 100G modular core switches
• EdgeCore rack servers equipped with QSFP28 100G parallel NIC adapters

2. Multi-Brand Cross Compatibility

Built on universal QSFP28 MSA open industry standards.
This EdgeCore replacement PSM4 optic interoperates with Cisco, Huawei, Dell, H3C, Arista  and Mellanox switches.
It fits multi-vendor hybrid cloud fabric and cross-pod colocation interconnection projects.

3. Free Value-Added Services

We offer free Huawei-specific EEPROM reprogramming for all bulk QSFP28 orders.
Custom private label printing and one-step data center deployment support are available.
Every 100G PSM4 transceiver finishes calibration, thermal cycle and 72-hour aging test.
Volume wholesale buyers enjoy tiered discounts to cut overall data center CAPEX cost.

Primary Application Scenarios

• 500m intra-fabric rack-to-rack interconnections inside EdgeCore leaf-spine architectures
• High-density aggregation trunk links for enterprise cloud and multi-tenant colocation data centers
• Low-latency 100G uplinks connecting ToR switches to AI, HPC and virtualization server clusters
• Inter-pod parallel optical transmission using MPO single-mode ribbon fiber
• Network upgrade projects from legacy 40G parallel optics to 100G PSM4
• Standard 100G to 4×25G breakout network deployment for segmented server bandwidth expansion
• Multi-brand hybrid fabric short-distance interconnection built on MPO cabling infrastructure

Connectivity Solutions(Applications)


1.Leaf-Spine Architecture
Low-loss parallel fiber for EdgeCore  leaf-spine inter-switch links.
No CWDM filters, lower attenuation and stable VM & container traffic.

HYTOPTODEVICE 100G PSM4 QSFP28 Transceiver Module for leaf-spine architecture interconnection



2. 100G to 100G for Switch-Switch Interconnection
Use existing MPO OS2 ribbon fiber to set up standardized rack trunk lines.
No complicated wavelength planning speeds up data center capacity expansion.

HYTOPTODEVICE 100G PSM4 optic for switch-to-switch rack trunk links

3.100G to 100G for Switch-NIC Connection

Compact MPO APC connector tidies dense cabinet wiring for GPU and HPC server uplinks.
Reserve cabinet space for future 400G parallel optic infrastructure upgrades.

HYTOPTODEVICE 100G PSM4 uplink module for switch-to-server NIC connections

4. 100G to 4×25G Breakout

Four independent optical lanes support MPO breakout cables, splitting one 100G QSFP28 port into four separate 25G SFP28 uplinks to boost port utilization.

HYTOPTODEVICE 100G PSM4 QSFP28 supporting 100G to 4x25G breakout transmission


The Core Feature 

1.Low Power and High-Density Realize 100G Connectivity for Data Center

Max power consumption limited to 3.5W, much lower than CWDM4 and QSFP28 LR4 modules.
Low thermal load prevents hotspots on fully populated high-density switch line cards.
Cut data center cooling energy cost and lower PUE value for long-term 24/7 operation.

HYTOPTODEVICE 100G QSFP28 PSM4 module with  low power & high-density design realizes stable 100G parallel connectivity for dense data center cabinets



2.
Verified Host Interoperability

Preloaded EEPROM matching official ET7402-PIR4 identification data.
Validated across new and legacy DCS series open switch ONIE firmware.
Hot-swap installation without unknown transceiver alerts or port lock restrictions.
Arista QSFP-100G-PSM4 compatible PSM4 QSFP28 fully validated on multi-generation Arista EOS switches

3.Comprehensive Factory Testing & Reliable Performance

Each optic undergoes precise optical calibration and alternating high-low temperature cycling.
72-hour full-rate traffic burn-in eliminates early failure risks before shipment.
Built DDM monitoring allows remote real-time fault check to reduce on-site maintenance.

Factory calibrated 100G PSM4 QSFP28 with 72-hour aging test for 24/7 data center production use



FAQ

Q1: Can HYTOPTODEVICE EdgeCore ET7402-PIR4 run without module alarms on DCS OpenSwitch platforms?
A: HYTOPTODEVICE pre-flashes ONIE-compatible EEPROM matching ET7402-PIR4 specs. Plug-and-play on all EdgeCore DCS switches without unsupported transceiver warning logs, no manual port policy edits required.

Q2: Is optical interconnection available between EdgeCore PSM4 and CWDM4/LR4 transceivers?
A: Direct fiber linking cannot establish valid communication. PSM4 uses parallel MPO 1310 lanes, while CWDM4/LR4 multiplex wavelengths on duplex LC cords; their optical structures are fully incompatible.

Q3: Can this EdgeCore compatible PSM4 be inserted into old 40G QSFP+ switch ports?
A: Normal transmission cannot be realized. QSFP+ hardware lacks DSP chips for 4×25G PSM4 parallel signaling, resulting in permanent port down status.

Q4: Does HYTOPTODEVICE ET7402-PIR4 support complete real-time DDM parameter reading?
A: Yes, standard-compliant PSM4 modules include real-time DDM/DOM to monitor transmit power, receive power, operating temperature, laser bias current, and supply voltage.

Q5: Will this EdgeCore 100G PSM4 auto downshift bandwidth for low-speed switch ports?
A: No. QSFP28 PSM4 operates strictly at fixed 100Gbps (4x 25.78Gbps lanes) or 4x25Gbps in breakout mode. It does not downshift to 40G or 10G automatically.

Q6: Can blue UPC MPO cables connect to this APC PSM4 module’s optical port?
A: UPC patch cords are strictly prohibited. Flat UPC polish generates severe light back reflection, distorting four parallel signals and permanently scratching internal laser receivers.

Q7: Are optical attenuators needed for short 1–5m MPO fiber runs with EdgeCore ET7402-PIR4?
A: No extra attenuators required. HYTOPTODEVICE factory calibrates transmit power with sufficient safety margin, short cables will not overload receiver chips.

Q8: What MPO fiber connector type matches HYTOPTODEVICE EdgeCore ET7402-PIR4?
A: It requires a female MPO/MTP APC (Angle Polished Connector) single-mode ribbon cable.

Q9: Can this EdgeCore PSM4 module run stable links over fiber exceeding 500m length?
A: Not recommended for production open fabric environments. Exceeding 500m surpasses MSA optical budget and lane skew tolerance, triggering fluctuating BER and intermittent port flapping.
Q10: What MPO polarity cable should be used for direct EdgeCore transceiver-to-transceiver PSM4 links?
A: A standard Type-B (Key-Up to Key-Up) crossover MPO-12 APC cable is required for direct point-to-point interconnection.

Q11: How important is regular MPO end-face cleaning for Edge DCS PSM4 fabric stability?
A: Extremely critical. An MPO connector carries 12 independent fiber cores; tiny dust particles can block an entire 25G lane and trigger heavy packet loss.

Q12: What breakout patch cord fits EdgeCore ET7402-PIR4 for 4×25G server uplinks?
A: You need an MPO-APC (Female) to 4x Duplex LC (APC/UPC) Single-Mode breakout patch cable.

Q13: What core optical differences separate 100G PSM4 and 100G SR4 transceivers?
A: SR4 adopts OM3/OM4 multimode fiber at 850nm with max 100m reach. PSM4 uses OS2 single-mode fiber at 1310nm supporting up to 500m; the two cannot interconnect.

Q14: What typical and maximum power consumption of HYTOPTODEVICE EdgeCore ET7402-PIR4?
A: Power consumption is typically ≤ 2.5W (maximum 3.5W), cooler and more energy-efficient than CWDM4 or LR4 optical modules.

Q15: What temperature variants are available for bulk EdgeCore ET7402-PIR4 orders?
A: Standard Commercial Temperature range is 0°C to 70°C (32°F to 158°F). Industrial grade (-40°C to 85°C) is available for edge cabinet special deployments.

Q16: What bulk purchase benefits does HYTOPTODEVICE offer for EdgeCore open switch integrators?
A: Bulk orders enjoy tiered volume discounts, free Edge ONIE EEPROM rewriting, custom private labeling and complete factory optical test reports to cut open data center construction costs.

Q17: Why choose HYTOPTODEVICE PSM4 over LR4 for under 500m Edge DCS rack links?
A: PSM4 features simplified internal components, lower unit price and ultra-low power draw, making it the most economical high-density parallel optic for Edge leaf-spine intra-fabric interconnections.

Q18: In which network scenarios CWDM4 delivers lower total cost than mass MPO PSM4 deployment?
A: CWDM4 is more cost-efficient for cross-building long-distance links or low fiber-count projects, as high-cost MPO ribbon cables offset PSM4 module price advantages.

Why Network Engineers Choose HYTOPTODEVICE

HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.

  • Up to 70% cost savings vs OEM, transparent pricing & flexible bulk rates, supported quality returns
  • 100% real-device compatible with Cisco, Huawei,Dell,Juniper, and Arista
  • ISO 9001:2015 Shenzhen factory, full lineup: 1.25G/10G/25G/40G/100G/200G/400G/800G/1.6T transceivers
  • Ample stock, fast global DHL/FedEx shipping in 3–5 working days
  • Free pre-sales engineering support for custom EEPROM  & private label firmware
  • Real switch test videos available for pre-purchase review; inspection & shipping videos provided per order

“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia


Quality Certification & Compliance

 At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, our processes ensure global compliance and reliability.

We adhere to rigorous standards for our SFP modules and network solutions:

  • ISO 9001: Certified quality management and production consistency.

  • CE & FCC: Fully compliant for seamless Global Market Access.

  • RoHS: Committed to environmental responsibility and hazardous material control.

  • Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.

Certified Quality. Global Standards. Guaranteed Performance.




Rigorous Industrial Product Testing

   hytoptodevice check device and equiptment for optical transceiver module

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  • HYTOPTODEVICE EdgeCore  ET7402-PIR4 compatible 100G QSFP28 PSM4 parallel single-mode transceiver 1310nm 500m MPO OS2 SMF
  • HYTOPTODEVICE low power high density 100G PSM4 QSFP28 module for EdgeCore high-capacity data center rack deployment
  • HYTOPTODEVICE plug-and-play EdgeCore compatible 100G PSM4 QSFP28 zero authentication alerts

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