PC 并行接口外观是 25 针母插座：
引脚定义
Pin | Name | Dir | Description |
|---|---|---|---|
1 | /STROBE |
| Strobe |
2 | D0 |
| Data Bit 0 |
3 | D1 |
| Data Bit 1 |
4 | D2 |
| Data Bit 2 |
5 | D3 |
| Data Bit 3 |
6 | D4 |
| Data Bit 4 |
7 | D5 |
| Data Bit 5 |
8 | D6 |
| Data Bit 6 |
9 | D7 |
| Data Bit 7 |
10 | /ACK |
| Acknowledge |
11 | BUSY |
| Busy |
12 | PE |
| Paper End |
13 | SEL |
| Select |
14 | /AUTOFD |
| Autofeed |
15 | /ERROR |
| Error |
16 | /INIT |
| Initialize |
17 | /SELIN |
| Select In |
18 | GND |
| Signal Ground |
19 | GND |
| Signal Ground |
20 | GND |
| Signal Ground |
21 | GND |
| Signal Ground |
22 | GND |
| Signal Ground |
23 | GND |
| Signal Ground |
24 | GND |
| Signal Ground |
25 | GND |
| Signal Ground |
ECP 并行口定义
ECP 是 Extended Capabilities Port 的缩写，外观同并行口，是 25 针母插座：
引脚定义
Pin | Name | Dir | Description |
|---|---|---|---|
1 | nStrobe |
| Strobe |
2 | data0 |
| Address, Data or RLE Data Bit 0 |
3 | data1 |
| Address, Data or RLE Data Bit 1 |
4 | data2 |
| Address, Data or RLE Data Bit 2 |
5 | data3 |
| Address, Data or RLE Data Bit 3 |
6 | data4 |
| Address, Data or RLE Data Bit 4 |
7 | data5 |
| Address, Data or RLE Data Bit 5 |
8 | data6 |
| Address, Data or RLE Data Bit 6 |
9 | data7 |
| Address, Data or RLE Data Bit 7 |
10 | /nAck |
| Acknowledge |
11 | Busy |
| Busy |
12 | PError |
| Paper End |
13 | Select |
| Select |
14 | /nAutoFd |
| Autofeed |
15 | /nFault |
| Error |
16 | /nInit |
| Initialize |
17 | /nSelectIn |
| Select In |
18 | GND |
| Signal Ground |
19 | GND |
| Signal Ground |
20 | GND |
| Signal Ground |
21 | GND |
| Signal Ground |
22 | GND |
| Signal Ground |
23 | GND |
| Signal Ground |
24 | GND |
| Signal Ground |
25 | GND |
| Signal Ground |
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