This is a list of models supported by this driver, the physical installation depends on the video encoder and the PTZ unit. Check what serial communication the video encoder and PTZ unit will support! Supported models: Pelco DD5-C Pelco Esprit ES30C/ES31C Pelco LRD41C21 Pelco LRD41C22 Pelco Spectra III Pelco Spectra IV Pelco Spectra Mini Videotec DTRX3/PTH310P Videotec ULISSE PTK AMB YP3040 Other models may be supported but this has not been verified by Axis