The 57419 is an Input Module designed by Reliance Electric. It is possible that this module could have also been produced and sold under the Asea Brown Boveri or Baldor Reliance names depending on what years the 57419 was actually in production.
The 57419 is a VDC Input Module created as a part of the AutoMax Distributed Control System. This module is a 32-point high-density digital I/O. It has a voltage isolation of 5000. It is rated at 5 volts to 24 VDCs. This module has isolated commons that are put in groups of four. There is an LED indicator for each of the 32 points. The LED lights are organized in a similar pattern to the input terminals on the connector socket. When voltage is applied to the input, the respective LED will glow.
The card has the ability to provide several functions. It can deliver input for distinct ON/OFF devices including limit switches, selector switches, and push-buttons. It can then make output signals to various indicators, solenoids, or motor starters.
The 57419 is a simple set up that is comprised of a circuit board, a faceplate, and a protective chassis. The faceplate has the indicator LEDs and a CNO connector cable plugin. There is a specific multi-conductor cable that has a plug that mates with the faceplate socket. The cable attaches to the terminal board. The cable and the faceplate socket are keyed specifically to prevent the cable to be inserted into an incorrect module.