1: CCTV Camera PTZ Decoder 2:out/indoor intelligent control 3:128 address, multiprotocol 4:memorize/recover information Description for CCTV PTZ DecoderNA-3001A ... , right auto (left upper, left down, right upper, right down)Camera Power SupplyDC 12V/650MACommunication InterfaceStandard RS-485Assistant SwitchAUXProtocolPELCO-D, PELCON ...