Up until a few years ago, analog Closed Circuit Television (CCTV) security systems dominated the security industry with no real effective alternative in sight. As technology advances from analog to high definition digital, more security system options have become available to users including products using High-Definition Digital Interfaces, also more commonly known as HD-SDI and HDMI.
HD-SDI has a variety of benefits it offers users including but not limited to its easy installation, the ability it gives users to upgrade their current CCTV systems without having to rerun coax cables, reliability, lower latency while still providing 1080p high definition and real-time images and last but certainly not least, its cost effectiveness.
HDMI technology supports standard, enhanced, or high-definition video and instead of needing multiple HDMI cables for the video signal and multiple HDMI cables for the sound signal, HDMI integrates all video and sound signals onto a single cable, making it easier to connect components together. Due to the complexity and the increased capability of HDMI cabling, HDMI systems can be more expensive, however, the fact that it is more compatible with a wider variety of accessories/components will likely justify the cost.
A benefit of HDMI versus HDSDI is that instead of converting digital signals to analog (to run through the cables) and then back to digital, everything on an HDMI cable remains in its original, uncompressed digital format giving users a much more vibrant image. Also, as previously mentioned, since HDMI technology is more widely available, peripheral components including monitors, DVRs, etc. have become more cost effective.
In researching the various monitors available in the marketplace, the ViewZ line of CCTV monitors comes to mind as an ideal consideration when looking to upgrade your
current system to HDMI. Ranging in size from 8 to 32 inches, ViewZ has taken the opportunity to provide a robust line of monitors specifically equipped with an HDMI connection for high definition capabilities. Looking at their newer models, like the VZ-23LED-P, many of these monitors are capable of interacting with both analog and digital signals. The convenience of having both format options gives users the opportunity to slowly switch CCTV systems to high definition as the need arises.