The I-87051 has officially been phased out and will no longer be available. It has now been replaced by I-87051W.
I-87051 has a serial bus (RS-485) communication interface with DCON protocol. It can be plugged into our WinCon, LinCon, I-8000 controllers and I-87K, RF-87K I/O expansion units. I-87051 is a Digital Input Module with 16 channels. I-87051 is a serial cartridge based I/O module that offers the ultimate in cost effective flexibility.