1 腳——亮度信號地 Luminance (Y) signal ground
2 腳——色度信號地 Chrominance (C) signal ground
3 腳——亮度信號輸入輸出 Luminance (Y) signal I/O (1 Vp-p, 7 5 ohms, sync: negative)
4 腳——色度信號輸入輸出 Chrominance (C) signal I/O (burst: 0.286 Vp-p, 75 ohms)