Grundig, the German electronics manufacturer, has introduced a complete High Definition – Serial Digital Interface (HD-SDI) CCTV range, comprising cameras, speed domes and DVRs. HD-SDI CCTV is a major breakthrough in the security industry. It enables the transmission of uncompressed digital video at a higher quality than IP, yet uses the same simple installation method as analogue coaxial cable. It also does not require expert IT support.
Grundig’s senior product manager, Andreas Kronwald, explains, “Grundig’s HD-SDI products operate at 1080p progressive scan, 1980 x 1080 pixel resolution and 50 / 60 fps. This compares to D1 resolution at 720 x 576 pixels and IP megapixel cameras at 1280 x 1024 pixels. The recorders support 120 fps and offer up to a massive 64 TB of storage.”
Unlike IP CCTV, HD-SDI uses no compression at all, so image quality is optimized. It even enables installers to offer a digital upgrade to analogue systems, re-using the existing coaxial cable infrastructure to save money.”
HD-SDI is presented in 16:9, widescreen format, meaning no black bars appear on monitors. Transmission distances are currently 100m and similar to IP. However, developments in SDI-specific, fibre optic transmission systems are extending transmission distances to many kilometers.
An HD-SDI CCTV system from Grundig can still be connected to an IP network for remote access, DVR software updates, remote maintenance or multi-site control and management, but the cable between the DVR and camera is coaxial. This makes HD-SDI a closed system, with limited external access. It is intrinsically safe, far simpler to protect, ideal for installers and very effective in security applications.
+49 (0) 2191 374 9883