The HDA-1851 is an HD/SD/ASI DA with up to 9 outputs and automatic equalization for up to 140 meters (Belden 1694A). The HDA-1851 DA supports both HD-SDI (SMPTE-292M) and SDI (SMPTE-259M-C). It also offers signal presence detection and remote reporting. The card's multiformat features make it ideal for applications where HD and SD signals may co-exist.