C2G 28723 RJ11 High-Speed Modem Cable 25 ft

RJ11 Modem Cable 25 ft

This RJ11 high-speed modem cable connects an analog or digital DSL or ISDN modem to a telephone wall jack. The male-to-male design uses standard RJ11 connectors for direct wiring. It suits home or small-office users who need a single 25 ft run for broadband or fax equipment. The 30 AWG conductors carry voice and data over the same twisted pair.

Practical Limits of RJ11 Wiring

RJ11 cabling is bound by the telephone network's voice-grade bandwidth and the DSL modem's own line-rate ceiling, not by this cable's shielding. Lengths beyond 100 ft can increase attenuation and reduce sync speeds on marginal lines. The twisted-pair construction minimises crosstalk, yet the interface remains limited to the frequencies the service provider delivers. Installers should avoid running the cable parallel to mains power to preserve signal quality.

Shielded Build and Strain Relief

Double foil shielding with a braid layer reduces electromagnetic interference along the full 7.6 m length. The PVC jacket stays ultra-flexible for routing around skirting boards and through tight conduits. Gold-plated copper contacts resist corrosion and maintain conductivity over repeated insertions. Snagless moulded boots protect the latch tabs and provide strain relief at both ends. The 0.63 lb weight keeps tension low on wall-mounted jacks.