Article Overview
The stripping length of a fiber optic patch cord depends on the connector type and cable construction, typically ranging from 10 mm to 20 mm for the bare fiber, plus additional jacket removal for connector housing.
Key Considerations
1. Connector Type: Different connectors (LC, SC, ST, MPO) require specific stripping lengths. For example:
- LC/SC connectors: Usually require stripping the fiber buffer about 10–12 mm and the outer jacket about 30–35 mm.
- ST connectors: Typically need 12–15 mm of bare fiber exposed.
- MPO/MTP connectors: Require precise multi-fiber alignment, often with stripping lengths specified by the manufacturer. 2. Cable Construction:
- Simplex or tight-buffered cables: Strip the buffer coating to expose the bare fiber.
- Loose-tube cables: Remove the outer jacket, gel, and buffer tube carefully to avoid fiber damage.
- Armored or LSZH cables: May require additional jacket removal to accommodate connector ferrules. 3. Standard Guidelines:
- Follow TIA-568, ISO/IEC 11801, and connector manufacturer specifications for stripping lengths.
- Ensure the stripped fiber length allows proper insertion into the connector ferrule without leaving excess fiber exposed, which could cause breakage or signal loss. 4. Practical Steps:
- Measure the required bare fiber length according to the connector datasheet.
- Mark the outer jacket removal length to fit the connector housing.
- Use a precision fiber stripper to remove the buffer and jacket cleanly.
- Inspect the fiber for nicks or scratches before cleaving and terminating. 5. Slack and Routing Considerations: While stripping length is critical for connectorization, also account for patch cord routing and slack in racks or panels. Proper slack ensures mechanical stability and avoids microbending losses, as highlighted in network planning guides .
Example
For an LC patch cord:
- Bare fiber exposed: 10–12 mm
- Outer jacket stripped: 30–35 mm
- Total stripping length: ~40–45 mm This ensures the fiber fits securely in the connector ferrule while leaving enough jacket for strain relief. Conclusion: The stripping length is determined primarily by the connector type and cable design, with manufacturer datasheets providing the most accurate values. Always combine this with proper cable management and routing practices to maintain network performance and longevity.
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