Sun

• SUN Sparcstation 4, 5, 10, 20, LX, Classic, Classic X, Ultra Enterprise 450 Serial port This port is located in SUN Sparcs such as SUN LX/Classic/SS4/5/10/20 and has both serial ports (A/B) in the same connector. Simply plugging in a regular serial cable in results in accessing port A.
• Sun Serial (DB25) Available on SUN computers since the SUN3 series (1988) to the current UltraSparc systems (RS423/RS232)