Network cable EFB Elektronik K8449.3 Grey 3m

The EFB Elektronik K8449.3 is a 3 m Cat.5e crossover networking cable designed for Gigabit Ethernet applications. The grey cable uses F/UTP construction (foil shield around all four twisted pairs) and Hirose TM11 shielded RJ45 plugs to reduce interference and provide reliable data transfer in home and office networks.

Advantages

The cable supports 100 MHz bandwidth for Gigabit Ethernet and uses a crossover wiring assignment (1↔3, 2↔6, 3↔1, 4↔7, 5↔8, 6↔2, 7↔4, 8↔5) for direct device-to-device connections. Shielded Hirose TM11 RJ45 plugs and F/UTP foil shielding provide improved protection against electromagnetic interference. The jacket and materials meet flame retardant and low-smoke halogen-free standards for safer indoor installations.

Suitable for

• Direct device-to-device Ethernet connections (PC to PC, switch to switch) requiring crossover wiring
• Office and home network installations where reduced interference is needed
• Short-run connections within network cabinets or between nearby networked devices (3 m length)

Key specifications

• Length: 3 m
• Category: Cat.5e, 100 MHz
• Conductor / cable: 4 x 2 x AWG26/7, PVC, Ø = 5.4 mm
• Shielding: F/UTP (foil around all pairs); shielded RJ45 (Hirose TM11), IEC 60603-7-3
• Connector assignment: crossover (1-3, 2-6, 3-1, 4-7, 5-8, 6-2, 7-4, 8-5)
• Standards: flame retardant IEC 60332-1, halogen-free IEC 60754-2, low smoke IEC 61034
• Color: Grey
• Manufacturer / MPN: EFB Elektronik / K8449.3
• EAN: 4049759015718

How to use

Connect each end of the cable to the RJ45 ports of the devices to be linked. As a crossover cable, use this cable for direct connections between two network devices that require swapped transmit and receive pairs (for example, certain older switches or computers). Ensure connectors are fully inserted and the cable is not sharply bent; the mounted strain relief helps protect the plug area.

Recommendations

Use this Cat.5e crossover cable for short-distance direct Ethernet links up to 3 m. Avoid running the cable parallel to high-voltage power lines and keep bends gentle to maintain signal integrity. For connections requiring modern auto MDI-X capable devices, a straight-through Cat.5e or higher cable may be preferable.