Marshall Converters 
Marshall BC-0301-08 Converter SDI to Video (SDI 8 Bit) BC030108

Marshall's Low-cost BC030108 digital to analog module can be configured for use in desktop or studio rack mount applications. The unit features 2 simultaneous Composite Video and S-Video D to A (10 bit processing) conversion. The unit also includes a built in Color Bar zGenerator, System indicator (PAL/NTSC), and dip-switch settings for no signal (Black/Blue screen displayed), pedestal (On/Off), clipping (On/Off), and blanking (Narrow/Wide). All Processing and Distribution modules include power supply and owners manual