Feature: 1. WIDE COMPATIBILITY: The PTZ camera controller is based for Linux and compatible with most dome security and surveillance IP cameras, very versatile 2. EASY PAIRING: The PTZ camera controller keyboard can be paired with a limited number of cameras to set preset patrol modes and AB scans, useful and practical 3. USE PLACE: PTZ camera controller can be widely used in a variety of important places, such as public security, surveillance, government and telecommunications departments, procuratorates, courts, banks, insurance, education, taxation and so on 4. STANDARD PROTOCOLS: The PTZ camera controller support standard network monitoring protocols. Possess good compatibility, strong scalability, simple operation, just a few steps to achieve the perfect control of the network dome camera 5. EASY TO CONTROL: The PTZ controller keyboard has a 3D joystick, the joystick control the ball machine down and down, left and right, and the swing joystick ball machine can zoom, making the PTZ camera more simple and fast Specification: Item Type: PTZ Camera Keyboard Power Consumption: Less than 5W Communication Interface: RS485 bus Communication Distance: Approx. 1500m / 4921ft(0.5mm twisted pair cable) Communication Protocol: For PELCO-D, for PELCO-P, for AD Baud Rate: 1200, 2400, 4800, 9600, 19200 Communication Parameters: 8 Data bits, 1 stop bit, no parity Joystick: Three dimensional(joystick control the PTZ up, down, left, and right; twisting the joystick zoom the PTZ) Display: LCD. Package List: 1 x PTZ Camera Keyboard 1 x Power Plug 1 x User Manual