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1. 目的
指導DB9、DB15、DB25、DB37端子選用和插頭設計
2. 適用范圍
本廠的DB端子的選用和模具設計。
3. 名詞解釋
RS: Recommended Standard
4. 設計要求
4.1 端子的分類及使用場合。
a) DB9: 符合RS232規(guī)范,用于串行接口如mouse, modem, null modem
b) DB15: 用于游戲機、Midi、網(wǎng)絡或蘋果機接口,如 joystick, gamepad, synthesizer, AUI, Apple video
c) DB25: 符合RS232規(guī)范,用于并行、串行或SCSI接口,如modem, null modem, laplink, printer, scanner, removable storage drive
d) DB37:符合RS449規(guī)范,用于串行的 RS-449 接口,如modem
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查一下吧
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VGA=Video Graphics adapter or Video Graphics Array. VESA=Video Electronics Standards Association. DDC=Display Data Channel.
Pin | Name | Dir | Description |
1 | RED | Red Video (75 ohm, 0.7 V p-p) | |
2 | GREEN | Green Video (75 ohm, 0.7 V p-p) | |
3 | BLUE | Blue Video (75 ohm, 0.7 V p-p) | |
4 | RES | - | Reserved |
5 | GND | Ground | |
6 | RGND | Red Ground | |
7 | GGND | Green Ground | |
8 | BGND | Blue Ground | |
9 | +5V | +5 VDC | |
10 | SGND | Sync Ground | |
11 | ID0 | Monitor ID Bit 0 (optional) | |
12 | SDA | DDC Serial Data Line | |
13 | HSYNC or CSYNC | Horizontal Sync (or Composite Sync) | |
14 | VSYNC | Vertical Sync | |
15 | SCL | DDC Data Clock Line |