Extralink 2J SC/APC-SC/APC Singlemode Outdoor Duplex G657A2 Patch Cable 25m

The Extralink Patchcord 2J SC/APC-SC/APC Single Mode Outdoor Duplex G657A2 25m is a 25-metre outdoor single-mode fiber patchcord terminated with SC/APC connectors on both ends. Designed for FTTH and outdoor network links, it uses G.657.A2 fiber for improved bend performance and low insertion loss. The cable is a duplex assembly supporting full-duplex communication between optical devices such as OLTs, ONTs/ONUs, media converters and switches, and its outer jacket provides mechanical protection suitable for external installations.

Advantages

This patchcord offers low attenuation and consistent optical performance across connections, delivering repeatable measurement and parameter stability. The G.657.A2 fiber specification improves resistance to bending, which reduces signal degradation in tight routing scenarios. The SC/APC connector polish ensures low back-reflection, while the durable jacket material provides weather-resistant protection for outdoor deployments.

Suitable for

• FTTH drop and subscriber connections between OLT and ONT/ONU
• Outdoor fiber links between cabinets, pillars and street cabinets
• Connecting switches, media converters and optical transceivers in outdoor or sheltered installations
• Temporary or permanent spares for field fiber installations requiring 25 m reach

Key specifications

• Fiber type: Single-mode G.657.A2
• Length: 25 m
• Configuration: Duplex (2-jumper) for full-duplex transmission
• Connectors: SC/APC on both ends (angled physical contact polish)
• Cable diameter: 7 mm
• Jacket material: Nylon / PVC
• Color: Black
• Performance: Low attenuation, suitable for wide temperature range

How to use

Route the patchcord from one optical device to the other avoiding sharp bends and excessive tensile stress. Align and insert the SC/APC connectors into the corresponding SC/APC adapters or receptacles until they click into place. Ensure connector endfaces are clean before mating to prevent contamination-related loss; use appropriate fiber cleaning tools if required. When deploying outdoors, secure the cable along the route to prevent movement and protect the connectors with dust caps or weatherproof enclosures when not connected.

Recommendations

Before installation, inspect and clean connector endfaces to maintain low insertion loss and low back-reflection. Maintain bend radii according to G.657.A2 recommendations and avoid kinking; protect the cable with conduit or clips in exposed locations. Store unused ends with protective caps and avoid prolonged exposure of connectors to dust and moisture.