LCD display; Zoom rocker; Keyboard lock function; Provide RS485 control output signal and standard RS232 control signal; Control module: Main Control and sub-control; Maximum sub-control: 16; Maximum controllable cameras: 1024; Maximum controllable monitors: 64 Maximum controllable decoders: 1024 Baud rate: 1200 bps~9600 bps; Protocol: KS, PELCO_D, PELCO_P, KALATEL.