... for camera Audio input test PTZ control. Pan/tilts the P/T unit, zooms in/out the lens, adjusts the focus, ... Contrast/Color Saturation are adjustable. Video Generating, The PAL/NTSC multi-system colorbar video generator (seven-system switchable, transmit/receive seven ... of connection and the NO. of the LAN cable. Multi-interface and Multi-baudrate. Support RS232 ,RS485 and RS422 interface; baud rate ...