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OM4 Multimode Fiber Patch Cord – 50/125µm, 850nm VCSEL, LC/SC/FC/ST/MPO/MTP, Simplex/Duplex
Designed for 10G‑100G data centers and enterprise networks.
50/125 µm fiber optimized for 850 nm VCSEL transmission.
Reliable short‑reach links: up to ~550 m (10G) and ~150 m (40/100G with MPO).
Low insertion loss, high return loss, factory‑polished connectors.
Available in simplex/duplex with LC, SC, FC, ST, or MPO/MTP.
Jacket options: PVC, LSZH
Custom lengths, polarity, and polish (UPC/APC) for plug‑and‑play deployment.
What is an OM4 Multimode Fiber Patch Cord?
An OM4 Multimode Fiber Patch Cord, or fiber jumper, is a high - performance cable designed for high - speed optical transmission in data centers and enterprise networks. Optimized for 850 nm VCSEL transmission, it supports various Ethernet speeds and offers reliable short - reach connections, with features like low insertion loss, high return loss, and customizable options for different applications and safety requirements.
OM4 Multimode Fiber Patch Cord Specification parameters
- Specification parameters
- OPTICAL CHARACTERISTICS
| Item | OM4 Patch Cord (Simplex/Duplex) | |
|---|---|---|
| Fiber Type | Multimode OM4 (50/125) | |
| Jacket Material | LSZH / PVC | |
| Connector Type | SC / FC / LC / ST , APC / UPC | |
| Ferrule Materials | Ceramic | |
| Cable Dimension | 2.0mm, 3.0mm | |
| Cable Color | Violet | |
| Testing Wavelengths | 850±30 / 1300±30nm | |
| Insertion Loss (dB) | ≤ 0.3dB | |
| Return Loss (dB) | ≥ 35dB | |
| Operating Temperature (°C) | -10°C ~ +70°C | |
| Storage Temperature (°C) | -40°C ~ +85°C | |
| Package | Poly bag | |
Product Structure & Composition
Fiber Core and Cladding: 50/125 µm OM4 fiber, optimized for 850 nm VCSEL‑based high‑speed transmission.
Connectors: Available in LC, SC, FC, ST, or MPO/MTP types, factory‑polished for low insertion loss and high return loss.
Outer Jacket: PVC (general), LSZH (fire‑safe), (for air‑handling spaces) to meet various safety codes.
8x LC Multimode (OM4) Breakout Fiber Optic Patch Cords
Benefits of OM4 Multimode Fiber Patch Cord
High - Speed Transmission Capability
OM4 multimode fiber patch cords are engineered to support high - speed Ethernet standards like 10G/25G/40G/100G. This makes them ideal for data - intensive applications in modern data centers and enterprise networks, where rapid data transfer is crucial for seamless operation.
Optimized for 850 nm VCSEL Transmission
With its 50/125 µm fiber design, OM4 is specifically optimized for 850 nm VCSEL transmission. This results in reliable short - reach links, enabling efficient data transmission over distances up to ~550 m at 10 GbE and ~150 m at 40/100 GbE (with MPO/MTP systems), which is essential for high - performance data center and enterprise LAN applications.
Stable Optical Performance
Featuring low insertion loss and high return loss, along with factory - polished connectors, OM4 patch cords ensure stable optical performance. This minimizes signal degradation and ensures accurate data transfer, even in high - density and high - traffic network environments.
Versatile Connector and Jacket Options
The availability of different connector types (LC, SC, FC, ST, MPO/MTP) and jacket materials (PVC, LSZH makes OM4 patch cords adaptable to various network setups and safety requirements. For instance, in a data center with high - density cabling, LC connectors can be used, while in a fire - sensitive area, LSZH jackets are preferred.
Engineering Applications OM4 Multimode Fiber Patch Cord
Data Centers
In data centers, OM4 multimode fiber patch cords are used to connect servers, switches, and storage devices. Their high - speed transmission capabilities and support for short - reach links make them perfect for enabling rapid data transfer within the data center infrastructure, ensuring smooth operation of data - intensive applications.
Storage Area Networks (SANs)
Within SANs, where high - speed and reliable data transfer between storage devices and servers is essential, OM4 patch cords play a vital role. Their ability to support high - bandwidth applications and short - reach connections ensures efficient data storage and retrieval operations.
Enterprise Local Area Networks (LANs)
Enterprise LANs benefit from OM4 patch cords' high - speed capabilities and stable optical performance. They can be used to connect different departments' network equipment, enabling seamless communication and data sharing across the enterprise network.
Shipping & Packaging
Product Comparison：
OM4 Multimode Fiber Patch Cord vs OM3 Multimode Fiber Patch Cord
| Feature / Dimension | OM4 Multimode Fiber Patch Cord | OM3 Multimode Fiber Patch Cord |
|---|---|---|
| Fiber Core and Cladding | Both have 50/125 µm core - cladding. OM4 has optimized modal bandwidth for better 850 nm VCSEL performance. | 50/125 µm core - cladding, but OM3 has lower modal bandwidth compared to OM4 at 850 nm. |
| Supported Speeds and Distances | Supports 10G/25G/40G/100G Ethernet. Up to ~550 m at 10 GbE and ~150 m at 40/100 GbE (with MPO/MTP systems). | Supports 10G Ethernet. Up to ~300 m at 10 GbE and shorter distances at higher speeds like 40/100 GbE compared to OM4. |
| Optical Performance | Lower insertion loss and higher return loss, providing more stable performance for high - speed applications. | Good optical performance, but not as optimized as OM4 for high - speed, long - reach short - wavelength applications. |
| Connector and Jacket Options | Available in simplex or duplex with LC, SC, FC, ST, or MPO/MTP terminations. Comes in PVC, LSZH | Similar connector and jacket options, but OM4 may offer more flexibility in some cases due to its higher performance requirements. |
| Cost (Relative) | Generally slightly more expensive due to its higher performance capabilities and optimized design for high - speed applications. | Relatively more cost - effective, suitable for applications where the highest speeds and distances are not required. |
| Typical Applications | Data centers, SANs, and enterprise networks with high - speed, high - bandwidth requirements, such as 40G/100G Ethernet applications. | Used in data centers and enterprise networks where 10G Ethernet is sufficient, and cost - effectiveness is a priority. |
OM4 Multimode Fiber Patch Cord Selection Guide
When choosing between an OM4 and OM3 multimode fiber patch cord, several factors need to be considered. If your application demands high - speed Ethernet connections such as 25G, 40G, or 100G, or if you require longer short - reach distances at 10G (up to ~550 m), OM4 is the better choice. Its optimized modal bandwidth for 850 nm VCSEL transmission and superior optical performance (lower insertion loss and higher return loss) make it suitable for data - intensive applications in modern data centers and high - performance enterprise networks.
However, if your network only requires 10G Ethernet and cost - effectiveness is a significant factor, OM3 can be a more suitable option. It still provides reliable performance for many data center and enterprise LAN applications, but at a lower cost. OM3 is also a good choice for applications where the distances at higher speeds are not as crucial as in OM4 - optimized scenarios.
Parameter - Best Fit
| Parameter | Best Fit |
|---|---|
| 25G/40G/100G Ethernet applications | OM4 |
| 10G Ethernet with distances up to ~550 m | OM4 |
| Cost - sensitive 10G Ethernet applications | OM3 |
| Data centers and enterprise networks with high - bandwidth requirements | OM4 |
| Data centers and enterprise networks where 10G Ethernet suffices and cost is a factor | OM3 |
Mixed deployment guidance:
In cases where a network has a mix of high - speed and lower - speed requirements, OM4 can be used for high - bandwidth sections (such as server - to - switch connections for 40G/100G applications), while OM3 can be used for less demanding connections (like general - purpose user device connections at 10G). This approach allows for cost - effective deployment while still meeting the performance needs of different parts of the network.
Installation Instructions of OM4 fiber patch cord
Pre‑installation Inspection: Check the cable jacket visually for any cuts, scratches, or kinks, and make sure the connector locks work properly.
Connector Cleaning: Wipe the ferrule tip with a lint-free swab dipped in isopropyl alcohol (for APC connectors, wipe along the angled surface), then dry it with a clean swab.
Connection: Line up the key with the keyway; for push-pull types (LC/SC), push in until you feel or hear a click; for threaded types (FC), screw it in slowly and make sure it’s secure.
Cable Routing and Management: Keep the bend radius at least 10× the cable’s outer diameter; secure with ties, trays, or clips to avoid pulling or damage.
Post‑installation Testing: Use an optical power meter to check insertion loss; if it’s higher than specified, double-check the connections, clean again, and look for hidden damage.
Download YRTFIBER Product Catalog
Factory Real Shot
State-of-the-Art Manufacturing Facilities
Our 60.000 m²; dust-free workshop is equipped with over 21 automated production lines for both single-core and MPO patch cords. Key machinery includes high-precision fiber cutters (tolerance: ±0.08 mm), FLC automatic termination machines, and UV curing systems. This setup enables a daily output of thousands of connectors while maintaining consistent quality.
Precision Core Manufacturing Process
The process begins with micro-tolerance cutting (end-face angle tolerance: ±0.5°) and six-axis fusion splicing (core deviation ≤1 μm). After multilayer jacketing with LSZH, PVC materials, connectors undergo automated polishing for PC, UPC, or APC finishes. The line achieves up to 7.000 connectors per 11-hour shift.
Rigorous Quality Assurance & Testing
Every patch cord is subject to 100% inspection, including interferometric end-face analysis (400x magnification), automated contamination detection, and insertion/return loss testing via OTDR. Additionally, environmental samples must pass temperature, humidity, and pull-force tests in compliance with IEC/TIA standards.
Frequently Asked Questions & Quick Inquiry
OM4 Multimode Fiber Patch Cord FAQ
Q1: What is OM4 fiber used for?
A1: OM4 fiber is optimized for high-speed data transmission, supporting up to 100Gbps over short distances.
Q2: What is the maximum transmission distance for OM4 patch cords?
A2: OM4 can reach up to 150 meters at 40Gbps and 100 meters at 100Gbps (using VCSEL).
Q3: Which connectors are available for OM4 jumpers?
A3: LC, SC, FC, ST connectors are available in simplex or duplex forms.
Q4: Can I request a custom length and jacket type?
A4: Yes, lengths and jackets (LSZH, PVC) can be customized per project.
Q5: Is OM4 backward compatible with OM3 and OM2 systems?
A5: Yes, OM4 is backward compatible with OM3/OM2. but performance depends on system configuration.
What is the main difference between OM4 and OM3 in terms of performance?
The main difference is in their supported speeds and distances. OM4 has a higher modal bandwidth optimized for 850 nm VCSEL, enabling support for 25G/40G/100G Ethernet and longer distances at 10G compared to OM3. OM4 also has lower insertion loss and higher return loss, providing more stable performance for high - speed applications.
Can OM4 be used in a 10G Ethernet network?
Yes, OM4 is well - suited for 10G Ethernet networks. It can support distances of up to ~550 m at 10G, offering more flexibility in network design compared to OM3, which has a shorter reach at the same speed.
Why is OM4 more expensive than OM3?
OM4 is more expensive because it is designed for higher - speed applications. It requires more precise manufacturing processes to achieve its optimized modal bandwidth and superior optical performance, which contributes to its higher cost.
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