Best CCTV Cable for Outdoor Camera Installation

Choosing outdoor CCTV cable: when to run RG59 siamese for analog/HD-over-coax and Cat6 for IP PoE cameras, plus run limits and weatherproofing.

Published 2026-07-22

Best CCTV Cable for Outdoor Camera Installation

Outdoor cable takes abuse — sun, rain, temperature swings. Picking the right type protects your image quality and your warranty.

Analog / HD-over-coax: RG59 siamese

For analog, HD-TVI, HD-CVI or AHD cameras, run RG59 siamese cable: video and 18AWG power in one jacket, so it is one pull instead of two. Our RG59 Siamese Cable 100m is UV-resistant for outdoor runs.

IP / PoE cameras: Cat6

IP cameras use Cat6 UTP for data and power over a single cable. Our Cat6 Cable 305m box supports Gigabit to 100m and PoE without overheating. Use outdoor-rated or conduit-run cable for exterior walls.

Run-length limits

Keep Cat6 PoE runs under 100m. Beyond that, use a wireless bridge or a long-range PoE switch. Coax analog can go further but loses signal — use baluns and amplifiers for long pulls.

Terminate cleanly

Finish runs with BNC connectors (coax) or proper RJ45 terminate + DC plugs (power). A cable tester confirms continuity before you close up.

Frequently asked

Can I run Cat6 outside without conduit?

Use outdoor-rated (CMX/UV-stable) Cat6 and keep it off direct sunlight where possible. For buried runs, use direct-burial or run it inside conduit to avoid rodent and moisture damage.