Description
Why ST Connectors Still Matter
ST connectors remain widely used in industrial Ethernet, campus backbones, broadcast systems, and older telecom installations because their twist-lock design resists accidental disconnection. When paired with OM3 fiber, this classic connector becomes a high-performance optical link capable of handling modern data rates.
This makes the ST–ST OM3 patch cord ideal for upgrading network speeds without replacing legacy ST hardware.
Optical & Mechanical Specifications
| Item | ST/UPC–ST/UPC-OM3-DX |
|---|---|
| Fiber Type | OM3 Multimode 50/125 μm |
| Configuration | Duplex (DX) |
| Connector Type | ST / UPC to ST / UPC |
| Operating Wavelength | 850 nm / 1300 nm |
| Bandwidth @ 850 nm | 2000 MHz·km |
| Insertion Loss | ≤ 0.30 dB |
| Return Loss | ≥ 30 dB |
| 10G Ethernet | Up to 300 m |
| 40G / 100G | Up to 100 m |
| Jacket | LSZH or PVC |
| Compliance | IEC, TIA-568, RoHS, REACH |
Where It’s Used
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Industrial Ethernet and automation
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Broadcast and CCTV fiber links
-
Telecom distribution frames
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Campus and building backbones
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Legacy fiber network upgrades
OM3 ensures low attenuation and high bandwidth, even when deployed in older ST-based fiber infrastructures.
Built for Stability and Longevity
Each ST–ST OM3 jumper is assembled with precision ceramic ferrules and UPC-polished end faces, then fully tested for optical loss and reflectance. The result is a clean, stable light path that remains reliable through thousands of connection cycles.
The LSZH jacket option also meets modern fire-safety and low-smoke standards, making it suitable for public buildings and data centers.
Professional Q&A
Q1: Can ST connectors handle high-speed links?
Yes. When paired with OM3 fiber, ST connectors support 10G, 40G, and even 100G short-reach connections.
Q2: Is OM3 backward compatible with OM2 and OM1?
Yes. OM3 works with older multimode equipment while offering much higher bandwidth for upgrades.
Q3: Why choose UPC polishing?
UPC reduces back reflection and maintains return loss ≥30 dB, improving signal quality.
Q4: Is this cable suitable for factory environments?
Absolutely. The ST bayonet lock provides excellent resistance to vibration and accidental unplugging.





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