Network Keyboard Keyboard to Control NKB-E1 High Speed DomeStandalone DVRNetwork Video Server ConnectionRS485, RS422 (reserved), USB, RS232 & Network FunctionsThree Dimensional Joystick Control of PTZ FunctionsPreset Position, Auto Scan, Auto Pan, Auto Tour & Pattern Auxiliary FunctionsOn-Screen Menu & User Operation Procedure TipsConnect to SmartPSS or DSS platform via USB General Keyboard Key panel Electromechanical Joystick 3-axis, vector-solving, with twisting, return to-center head Keyboard Connector RJ-45, RS232, RS485, RS422 (reserved), USB Keyboard Communication Direct Mode, Network Mode Direct Mode Interface: 1 RS232/2 RS485 ; DVR Protocol: DH-2 ; Dome Protocol: DH-SD1/PELCO-D/PELCO-P, etc Network Mode Interface: RJ45 DVR/Network Dome: IP Address/Port/Protocol Display LCD, 75.2mm×33.85mm Maximum Number of Users 64 (including "admin") Max RS485 Addresses(Each User) 256 Number of PTZ Max Number of PTZ (IPC) That Can be Added over Network (Each User):2048 Environmental Power Supply Power adapter, input 100V~240V 50Hz/60Hz, output DC12V/2A Power Consumption 5W Working Temperature -10℃~+55℃ Working Humidity 10% ~ 90% Atmosphere Pressure 86kpa~106kpa Dimension 330mm×139mm×53mm (W×D×H)(height: 103mm including joystick) Weight 1.3kg (Including package) Dimensions(mm) RJ45 Network Port Connection If you are using network keyboard, you can use the network to connect. The direct connection mode is shown as Figure. Please refer to the following figure if you are connecting via the hub. See Figure . Rear Panel Rear Panel Description USB port The keyboard can be connected to the computer through the USB port to control the SmartPSS and DSS Pro platforms.RS-422 port Reserved port. RS-422 port can be directly connected to a device with RS-422 port.RS-485 port The standard transmission distance of the RS-485 port is 1200 m (9600 bps), but it can reach maximum 3000 m in reality.Network Port : The keyboard can be connected with the DVR and speed dome camera through the network port.RS-232 port RS-232 port can be directly connected to a device with RS-232 port, but the distance should be within 10 m.Power port The keyboard connects to 12 VDC power supply, and you can use the power adapter included in the accessories.