XVP-3901-DPI Densité Digital Program Insertion: 3G/HD/SD DPI Inserter/Extractor with Frame Sync Datasheet (DS-PUB-2-0204A-EN) File size: 658.5 KB, posted Sep 02 2020 The XVP-3901-DPI from Grass Valley is the perfect solution for digital program insertion (DPI) applications. It embeds SMPTE ST 2010 packets containing SCTE 104 DPI messages based on GPI triggers. It can also monitor embedded SMPTE ST 2010 packets for specific SCTE 104 split request messages and triggers the appropriate GPO. All DPI events can be monitored and logged though iControl.