Network Cable Huawei Patch Cord SC/APC single mode 30m G.657B3 0.25mm GJxFN 3.0x1.4mm

The Huawei Patch Cord SC/APC single mode 30m G.657B3 is a fiber optic patch cord engineered for reliable single-mode data transmission over moderate distances. It uses an SC/APC connector on both ends and a 0.25 mm glass core complying with G.657B3 bending-loss performance. The cable assembly is sheathed in a GJxFN jacket with outer dimensions of approximately 3.0 x 1.4 mm, providing physical protection and flexibility for installation in indoor and structured cabling environments.

Advantages

This single-mode patch cord delivers low insertion loss and low back reflection thanks to SC/APC connectors and adherence to G.657B3 fiber standards. The 0.25 mm core size supports standardized single-mode optical links while the GJxFN jacket balances mechanical strength with a compact, flexible profile. The 30 m length covers common patching and interconnection needs without additional splices, and the cable's bend-insensitive fiber reduces signal degradation in routing with tight bends.

Suitable for

• Indoor backbone and horizontal fiber connections in telecommunications rooms
• FTTx subscriber drop and building-to-building single-mode links
• Patching between optical distribution frames, switches and transceivers

Key specifications

• Fiber type: single-mode, G.657B3 bend-insensitive fiber
• Connector type: SC/APC (angled physical contact)
• Core/cladding nominal diameter: 0.25 mm core (single-mode specification)
• Cable jacket: GJxFN profile, approximately 3.0 x 1.4 mm outer dimensions
• Length: 30 meters
• Performance: low attenuation and low back reflection suited for single-mode networks

How to use

Route the patch cord between optical ports ensuring connectors are clean and free of dust before insertion. Align the SC/APC connector to the adapter or transceiver port and insert until it clicks into place; ensure the angled endface orientation matches the mating adapter to maintain low back reflection. Avoid tight bends below the fiber's minimum bend radius and secure the cable to prevent sharp kinks or mechanical stress. When disconnecting, depress the connector latch and withdraw straight out to avoid damaging the ferrule endface.

Usage recommendations

Use a fiber inspection scope to verify endface cleanliness before each connection. Maintain bend radius recommendations for G.657B3 fiber to preserve optical performance. Store spare lengths coiled loosely and avoid repeated tight bending or crushing; replace the cord if the connector endface is scratched or contaminated beyond cleaning.