The CV620-CABLE-07 8-Pin RS-232 to RJ-45 Adapter Cable from Marshall allows for extended cable runs between daisy-chained cameras. Running the RS-232 signals over Cat5/6 cable allows the signal to travel up to 300 feet, which is significantly longer than possible with standard RS-232 cable. This cable features four connectors, two each 8-pin RS-232 and RJ-45, enabling you to use one cable for both the RS-232 in and out to the CV620 camera.