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CCTV Connectors

CCTV Connectors: BNC, RJ45 and Video Balun Guide

Choosing the right CCTV connectors decides whether a camera system delivers a clean, stable image or a noisy, intermittent one. The connector is the point where coaxial or twisted pair cable meets the camera, the DVR and the power supply.

This guide explains how BNC connectors, RJ45 Cat5e and Cat6 crimp jacks, video baluns and DC power terminations differ, and how installers across South Africa match each type to the cabling and camera technology already on site.

Why Installers Rely on NeonSales

  • Specialised security focus: Connectors are stocked alongside cameras, power supplies and cabling, so compatibility is considered across the full installation chain.
  • Practical range depth: Screw-on, twist-on and crimp BNC terminations sit alongside RJ45 jacks, joiners, boots and baluns.
  • Nationwide supply: Orders reach installers in Johannesburg, Pretoria, Cape Town, Durban and outlying towns.
  • Secure checkout: Encrypted payment handling with order tracking from dispatch to delivery.
  • After sales support: Guidance on connector selection and compatibility when a system mixes older and newer equipment.

Connector Types Explained

BNC Connectors

BNC terminations carry analogue and HD over coax video from camera to recorder. Screw-on and twist-on versions terminate RG59 without soldering, while crimp types use a compression tool for a tighter, more permanent joint.

Supporting parts include BNC female to female joiners for extending existing runs, BNC to RCA adapters for monitors and scan converters, BNC to DC jacks for camera power sockets, and rubber BNC boots that protect the termination point.

RJ45 Cat5e and Cat6 Connectors

RJ45 crimp jacks terminate the eight conductor twisted pair cable used for IP cameras, network switches and balun transmission. Cat5e jacks suit standard 100Mbps and Gigabit runs, while Cat6 jacks accommodate the thicker conductors and tighter tolerances of higher bandwidth cable.

Metal shielded crimps are used with STP or FTP cable where interference is a concern, and RJ45 rubber boots reduce strain on the latch during handling.

Video Baluns

Video baluns convert an unbalanced coax signal into a balanced signal that travels over a single pair of Cat5, Cat5e or Cat6 cable. Full HD baluns typically support AHD, CVI and TVI at 720p and 1080p, with transmission distances that vary by signal type and cable quality.

DC Power Terminations

Male and female DC jacks, fly leads and multi way splitter leads handle the 12V side of a camera installation. The common standard is a 5.5mm outer and 2.1mm inner barrel with a centre positive polarity.

What to Consider Before Buying

  • Cable type: RG59 coax pairs with BNC, while UTP or STP twisted pair pairs with RJ45 jacks or baluns.
  • Termination method: Screw-on and twist-on connectors need no tooling, whereas crimp connectors need a matched crimping tool for a reliable joint.
  • Cable distance: Longer runs favour baluns over coax, since voltage drop and signal loss increase with distance.
  • Camera technology: Confirm whether the system is analogue, AHD, CVI, TVI or IP before selecting a connector family.
  • Shielding: Metal shielded RJ45 crimps suit installations running near electrical cabling or motor equipment.
  • Conductor size: Cat6 conductors are thicker than Cat5e, so a matching jack size prevents failed terminations.

Common Applications

  • Residential systems: Terminating camera runs around homes and complexes.
  • Retail and office sites: Linking multi camera arrays back to a central DVR or NVR.
  • Farm and smallholding security: Long distance runs where baluns extend coverage over Cat5e.
  • Network cabling: Patch lead assembly and data point termination.
  • Repairs and upgrades: Replacing failed connectors or joining existing cable runs.

Delivery Across South Africa

Every order is packed and dispatched for nationwide courier delivery, covering metros and regional centres alike. Tracking details follow dispatch so installers can plan site work around arrival.

Explore the Range

Compare BNC, RJ45 and balun options side by side to find the termination that suits your cabling and camera technology.

View our wide selection of CCTV Accessories

Frequently Asked Questions

What is the difference between a BNC CCTV connector and a video balun?

A BNC CCTV connector terminates coaxial cable directly and carries the video signal over coax. A video balun converts that signal for transmission over twisted pair cable such as Cat5e or Cat6, which allows far longer runs at lower cable cost. Baluns are supplied in pairs, with one unit at the camera and one at the recorder.

Can an RJ45 Cat6 connector be used on Cat5e cable?

Cat6 connectors are built for the thicker conductors and larger overall diameter of Cat6 cable. Using one on Cat5e often results in a loose fit and unreliable contact, so a matching RJ45 Cat 5e connector is the safer choice. Matching the jack to the cable category keeps performance consistent across the run.

Do screw-on BNC connectors need special tools?

Screw-on and twist-on BNC connectors terminate RG59 without soldering or crimping, using a small screw to secure the centre conductor and a clamp for the braid. Only a cable stripper is needed. Crimp style BNC connectors, by contrast, require a matched crimping tool for a secure and lasting termination.