... RS485, the Keyboard can switch between cameras freely, control the Auto/manual, set parameters and lens. Multi-protocol support is ... PELCO-P, AD, PHILIPS, SAMSUNG, VICON, PANASONIC and customized protocols etc.2. The DVR control1). Though the connection to DVR ... supported protocols are: HI, DA, DR and customized protocols etc.2). Support the RS232 and RS485, RS232 hardware installation is selectable.3 ...