PAL vs. NTSC
PAL stands for Phase Alternating Line and is a standard for analog video. PAL delivers 625 scan lines per image, 25 frames per second and has a 50-Hz grid frequency. PAL is used primarily in Europe, Australia, part of South America and some areas of Africa.
NTSC stands for National Television Standards Committee. NTSC delivers 525 scan lines, 30 frames per second and has a 60-Hz grid frequency. NTSC is used primarily in North America, part of South America and in Japan.
Stoneridge-Orlaco supplies camera systems that support both the PAL and NTSC standards.
Both PAL and NTSC cameras transmit an electronic signal and the voltages associated with this signal supply the image. The benefit of an analog system is that there is no delay before the image is displayed: The camera transmits the video signal to the monitor one to one via a coaxial cable. This is the main difference when compared with a digital camera. Digital GMSL and Ethernet systems do not use frequencies and wavelengths; instead, the video image is converted into a digital signal. This signal consists of 1s and 0s and must be encoded and then decoded in order to display the image on a monitor.
Serial and Non-Serial Solutions
Stoneridge-Orlaco supplies both serial and non-serial camera monitor systems. A serial system (seven-pin) enables serial communication between the camera and the monitor, allowing zoom commands to be transmitted, for instance. Stoneridge-Orlaco produces adapter cables to connect four-pin and/or seven-pin systems.