Which cable(s) is/are needed for an analog camera?

The correct answer identifies the necessity of both a video signal cable and a power cable for an analog camera. Analog cameras function by capturing video footage and transmitting that footage as a continuous electrical signal. To do this effectively, a dedicated cable is used to carry the video signal from the camera to the recording device or monitor. Typically, this is done using coaxial cable, which is well-suited for video transmission due to its shielding and ability to minimize interference.

Moreover, analog cameras require a power source to operate. This is where the power cable comes into play, delivering the necessary voltage to the camera. By using both a video signal cable and a power cable together, the camera can transmit live video while simultaneously receiving the power it needs to function.

In contrast, the other options do not provide the full complement of connections required for an analog camera. Some options may suggest using only a power cable or different cable types that do not align with the typical requirements of an analog surveillance setup. Thus, the combination of video signal and power cable is essential for ensuring the functionality of an analog camera within a CCTV system.