Extralink patchcord SC/UPC–SC/UPC singlemode simplex G.657.A1 FTTH 3mm, 3 m

Extralink patchcord SC/UPC–SC/UPC singlemode simplex G.657.A1 FTTH 3mm, 3 m is a single‑mode fibre optic jumper terminated with SC/UPC connectors on both ends. The cable uses G.657.A1 fibre with a 3 mm jacket designed for FTTH and indoor installations requiring low bend sensitivity and stable single‑mode transmission over short distances. With a 3 meter length and simplex construction, this patchcord connects devices with SC ports, such as media converters, switches, optical line terminals (OLT) and optical network units (ONU/ONT), or links modules inside distribution panels.

Advantages

The G.657.A1 fibre specification ensures improved bend performance compared with standard single‑mode fibres, reducing signal loss at tight routing points. SC/UPC terminations provide low back reflection and reliable mechanical mating for passive and active optical equipment. The 3 mm jacket strikes a balance between flexibility and durability for indoor cabling and patch panel use. Simplex design simplifies single‑fibre connections where separate transmit and receive paths are managed by paired connectors or separate patchcords.

Suitable for

• FTTH drop and premises wiring where low bend radius is required
• Connecting OLT, ONU/ONT, media converters and switches with SC ports
• Patch panels and fibre distribution frames in telecom or data centers
• Short indoor interconnections between optical transceivers and modules

Key specifications

• Fibre type: single‑mode G.657.A1
• Connector types: SC/UPC to SC/UPC, simplex
• Cable jacket diameter: 3 mm
• Cable length: 3 m
• Polish type: UPC (ultra physical contact) for low reflectance
• Applications: FTTH, indoor patching, equipment interconnects

How to use

Route the patchcord along planned cable paths, avoiding sharp bends and mechanical stress. Insert each SC connector until it clicks into the device or panel adapter; ensure connectors are clean before mating to prevent contamination and signal degradation. For simplex links, use separate patchcords or paired connectors for transmit and receive channels as required by the equipment. When not in active use, protect connector endfaces with dust caps.

Recommendations

Clean connector endfaces with an appropriate fibre cleaning tool before installation. Maintain bend radii within the fibre’s specified limits and secure the cable with gentle fastening methods to prevent microbending. For permanent installations, verify optical attenuation with a power meter or OTDR after termination to confirm link performance.