The HDA-1851-3RU is an HD/SD/ASI DA with up to nine outputs and automatic equalization for up to 140 meters (459 feet) using 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.