[GreenKeys] RS232 to Analog Currnet Loop

[Dino Papas]

Steve -- here are a couple of units I found after a quick Google search:

http://www.telebyteusa.com/catalog/products/65a.htm

http://www.baudot.net/gil/tty232-tap/TTY232_TAP.pdf

http://www.baudot.net/tty-connect.htm

As I recall the 33 had a 20mA loop?

Dino KL0s