Extralink SC/APC - SC/APC duplex single-mode patchcord G.657A1 3mm 3m

Extralink SC/APC - SC/APC Duplex Singlemode Patchcord G.657A1 3mm 3m is a 3-metre duplex singlemode fibre optic patchcord terminated with SC/APC connectors on both ends. The cable uses G.657.A1 bend-insensitive fibre housed in a 3 mm FTTH-style jacket, providing a reliable full-duplex optical link for FTTH installations, patch panels and equipment interconnections that require SC/APC terminations.

Advantages

This patchcord combines SC/APC terminations with G.657.A1 singlemode fibre to reduce bend sensitivity and minimize insertion loss in confined routing spaces. The 3 mm PVC jacket offers mechanical protection and easy handling during installation. Duplex construction ensures simultaneous transmit and receive channels over a single cable assembly, which simplifies cabling and maintains consistent polarity in active equipment connections.

Suitable for

• FTTH subscriber connections between OLT and ONU/ONT devices
• Interconnections in optical patch panels and distribution frames
• Direct equipment linking for switches, media converters and transceivers with SC/APC ports
• Short-range backbone or horizontal links inside premises where SC/APC termination is required

Key specifications

• Fibre type: Singlemode bend-insensitive G.657.A1
• Connector type: SC/APC to SC/APC duplex
• Cable diameter: 3 mm
• Cable jacket material: PVC (FTTH-style outer sheath)
• Length: 3 metres
• Polarity: Duplex (TX/RX pair)
• Application: External termination for optical equipment and patch panels

How to use

Route the patchcord along the planned cable path avoiding sharp bends and tight radii; G.657.A1 fibre tolerates tighter bends than standard singlemode but maintaining gentle curves improves long-term performance. Insert SC/APC connectors into the corresponding SC/APC adapter or port until they click or seat firmly, observing correct duplex polarity for transmit and receive channels. For installations in patch panels, secure excess length with proper cable management to avoid strain on the connectors.

Recommendations

Inspect connector endfaces before mating and clean with fibre-optic cleaning tools if necessary. Avoid bending below the recommended radius and prevent tensile loads on the cable; store and handle the patchcord to protect connector ferrules from contamination or mechanical damage.