Up for your consideration is battery-powered keyboard controller. Use-ktz-1200ptz. New in the box.

Wonwoo WTX-1200A PTZ Controller Joystick Keyboard USB Mouse Function Operate with 9V Battery Controls Up to 255 Cameras Multiple Protocol Supported in Each Channel User Password Support Key Features USB mouse function Operate with 9V battery Controls up to 255 cameras Multiple protocol supported in each channel RS-485 / RS-422 communication (Tx: 3 port TRx:1 port) Programmable user preferences. (Preset Tour Pattern etc.) Built-in 3-Axis proportional joystick Easy upload of programmed data via serial communication Built-in 2 lines character LCD User password support Programmable transmission speed for each ID. (2.457.6kbps) Easy to be integrated with DVR (key-code value provided) Specifications Keyboard Communication: Interface: RS-485 / RS-422; Operating distance: 4000ft (1.2Km) on 24 AWG wire; Protocol: Multiple (Pelco-D Pelco-P WONWOO Etc.

PTZ Speed Dome Camera Keyboard Controller with 4D Joystick RS485 Input oZ