PE5125ST is Main keyboard for Matrix switcher, also it is a universal network keyboard controller for DVR and pan-tilt (speed dome), integrate with Pelco, Samsung, etc. protocol, to make PE5125ST can be compatible to popular platform. 3 communication ports to have RS485/RS422/RS232, baud rate can set. Operation keys display on 240x128mm LCD by icon, total 47 key buttons, including 8 macro, 8 customized button, etc. LCD indicate system status, operation success indicator, with several tone available, volume can set. With 3-D joystick 10/100M Ethernet port, 1 Contact closure port, every port can set separately, Communication of RS485/RS422/RS232 and baud rate available to set, to match different platform 240mm×128mm LCD to display all operations. With operation status indicator to display successful operation Several operation tone available, tone volume can adjust.