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This is DB25 male type connector with facility to solder wires on inner side.The DB25 (originally DE-25) connector is an analog 25-pin plug of the D-Subminiature connector family (D-Sub or Sub-D).As with the DB9 connector, the DB25 is mainly used for serial connections, allowing for the asynchronous transmission of data as provided by standard RS-232 (RS-232C).It is also used for parallel port connections, and was originally used to connect printers, and as a result is sometimes known as a "printer port" (LPT for short).
Pins (serial connection)
| Pin number | Name | |
|---|---|---|
| 2 | TXD - Transmit Data | |
| 3 | RXD - Receive Data | |
| 4 | RTS - Request To Send | |
| 5 | CTS - Clear To Send | |
| 6 | DSR - Data Set Ready | |
| 7 | GND - Signal Ground | |
| 8 | CD - Carrier Detect | |
| 20 | DTR - Data Terminal Ready | |
| 22 | RI - Ring Indicator |
Pins (parallel connection)
| Pin number | Name | |
|---|---|---|
| 1 | _STR - 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 - Acknowledgement | |
| 11 | Busy | |
| 12 | Paper Out | |
| 13 | Select | |
| 14 | Auto feed | |
| 15 | Error | |
| 16 | Reset | |
| 17 | Select Input | |
| 18 | Ground | |
| 19 | Ground | |
| 20 | Ground | |
| 21 | Ground | |
| 22 | Ground | |
| 23 | Ground | |
| 24 | Ground | |
| 25 | Ground |
DB25 Female Connector (Wire Type)
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