title: How to open cash drawer directly in c#
body: <p>I'm using Partner SP-550 Touch Computer (POS PC) with EC-410 Cash drawer. There is a RJ-11 port in POS machine. It is labeled as cash drawer. I connect my Cash drawer to PC using that RJ-11 port. My Software developed in C#, So how can I write a command to open cash drawer in C#?</p>