This is a major drawback of the 6g switches and has put a spanner in the works on several systems i've built. The 6g switches DO NOT switch in the vertical interleave, even with everything locked to reference the 6g switches cause a dropout on switching which makes monitors lose sync. If all or most of your signals are locked then i would recommend having a reference, but it is not necessary. This dates back to my day when most of the signals (analog,sorry) were locked together so feeding a reference would force the actual switch during the vertical interval eliminating a visible glitch. If most or all of the sources are non synchronous and different resolutions and frame rates, feeding a reference will not help much. ![]() SDI Metadata Support: Video payload identification ancillary data as per SMPTE 352M.Gary Adams wrote:A lot depends on what you are switching.SDI Auto Switching: Automatically selects between 270Mb SD SDI, 1.5G HD SDI, 3G level A and level B HD SDI, 6G HD SDI, 12G SDI and DVB ASI on each input so that each input can be running a different television standard.SDI Color Space: REC 601, REC 709, REC 2020.SDI Color Precision: 10, 12 bit RGB 4:4:4 in all HD and 2K modes, Ultra HD modes up to 2160p30 and 4K modes up to 4Kp30 DCI.SDI Video Sampling: YUV 4:2:2 and RGB 4:4:4.SDI Audio Sampling: Television standard sample rate of 48kHz and 24-bit.SMPTE 259M, SMPTE 292M, SMPTE 296M, SMPTE 372M, SMPTE 424M, SMPTE 425M level A and B.3 Year Limited Manufacturer's Warranty, and 12 Month Warranty on the front panel 1.Welcome wallet with QR code for software download 1.Supports all SDI video standards up to 2160p60.Large spin knob control with electronic clutch.Redundant power and reference connections.Supports any combination of SD, HD and Ultra HD on the router at the same time.Blackmagic Design Videohub 40x40 12G Features It also features SDI re-clocking, external Ethernet control and supports all SDI video standards up to 2160p60. Routing can be performed by direct button selection and using the large spin knob control that has an electronic clutch. The large full HD LCD lets you see video before routing and clearly displays routing labels and video standards. It has 40 12G-SDI inputs and 40 12G-SDI outputs, redundant power and reference connections in two rack units size. ![]() Blackmagic Videohub 40x40 12G is an advanced zero latency video router that supports any combination of SD, HD and Ultra HD on the router at the same time.
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