Good Used Dedicated Micros KBS3 Digital Remote Keyboard with Joystick, comes with correct RS485 Cable. The KBS3 is a remote keyboard for use with Dedicated Micro's D4, Digital Sprite 2 and BX2 digital video recorders. In addition to operating basic DVR functions, this unit features a 3-axis joystick for smooth control of a camera's pan, tilt and zoom (PTZ) functions. Additional keys ensure that any feature supported by third party dome PTZ cameras such as patrol, iris, focus, wiper and wash can be accessed by this keyboard. This unit connects to a DVRs 485 bus port and can be used at a distance of up to 4900 ft. (1.5 km) from the DVR. The keyboard can control a DVR located up to 4900 ft (1500m) away by using a junction box (CJ01), a 12V power supply (PSUCBUS) and the required length of UTP CAT5 cable. Up to 16 keyboards can be used to control a single DVR (except D4 units) Onboard LCD displays camera names and numbers