DB25 pin

[Hai Ly Hoang]

My DB25 connector (used for parallel port) has 2 row
Row A: 13 pin
Row B: 12 pin
How can I find the pin number 1 on the connector. Which direction does we
number the pin ? What is the phylosophy of the numbering ?
Thank in advance.

 

[Pen]

Pinouts available here;
http://www.nullmodem.com/DB-25.htm