Yes, all rhombuses are parallelograms, but not all parallelograms are rhombuses. This is because the definition of a parallelogram is more lenient than that of a rhombus, so you can have parallelograms where not all four sides are equal in length to each other.
HIKVISION iVMS-4500 is a mobile phone surveillance application just based on iPhone, which supports the full line of Hikvision products, including the DS-7000/8000 series DVRs (dual stream models), DS-7300/8100 series DVRs , DS-9000/9100 series DVRs, DS-6000/6100 series digital video servers, as well as network cameras and speed domes that support ...
Most importantly, HDCVI camera need to work with HDCVI DVR, and only Dahua has the capability to design and produce the HDCVI camera module and HDCVI DVR, hence users don't have too much selection on models. As one of professional manufacturer, Hikvision launched the HDTVI solution.