EGA 显示接口
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EGA 是 Enhanced Graphics Adapter 的缩写,信号类型为 TTL,颜色数为 16/64 色,显示卡端的接口为 9 针母插座:

显示器连线端的接口为 9 针公插头:

| 引脚定义 |
| Pin | Name | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | SR | Secondary Red |
| 3 | PR | Primary Red |
| 4 | PG | Primary Green |
| 5 | PB | Primary Blue |
| 6 | SG/I | Secondary Green / Intensity |
| 7 | SB | Secondary Blue |
| 8 | H | Horizontal Sync |
| 9 | V | Vertical Sync |