Indoor optical fiber cable electro base G657.A single-mode, yellow LSZH jacket, 297 m

Indoor optical fiber cable electro base G657.A single-mode, yellow LSZH jacket, 297 m is a factory-assembled optical cable intended for indoor telecommunication and data transmission runs. The cable contains single-mode fibers compliant with the G.657.A bending-improved profile, enclosed in a yellow low-smoke zero-halogen (LSZH) outer jacket and supplied in a 297 meter length suitable for rack-to-rack, horizontal and vertical building pathways. Its construction is intended to deliver low insertion loss, stable single-mode performance and safer behavior in confined indoor spaces compared with halogen-containing sheaths.

Advantages

The cable combines a G.657.A single-mode fiber profile that allows tighter bend radii with an LSZH jacket that minimizes smoke and toxic gas emissions in case of fire. Its 297 m length on a single reel reduces the number of splices required for many typical runs and simplifies installation planning. The yellow outer sheath provides standard color coding for single-mode links, improving identification in cable trays and distribution panels.

Suitable for

• Indoor backbone runs between cabinets and floors
• Data centre interconnects and horizontal fiber distribution
• LAN and telecom installations in commercial and residential buildings
• Environments requiring low-smoke, zero-halogen cabling

Key specifications

• Fiber type: G.657.A single-mode (bend-improved)
• Outer jacket material: LSZH (low-smoke, zero-halogen)
• Color: yellow (single-mode standard)
• Length: 297 meters
• Application: indoor installation, building backbone and horizontal runs
• Typical performance: low insertion loss suitable for single-mode links

How to use

Plan the cable route to avoid sharp edges and secure appropriate bend radius protection at entry points, panels and around rack equipment. Unroll the 297 m cable from the reel and route it along trays, conduits or through cable management systems, observing the recommended minimum bend radius for G.657.A fibers. Terminate using suitable single-mode connectors or fusion splices, and perform optical loss and continuity tests after installation to verify end-to-end performance.

Usage recommendations

Maintain slack for service loops at patch panels and cabinets, avoid repeated tight bends beyond the specified radius, and store the cable in a dry, temperate environment before installation to preserve jacket integrity and fiber performance.