Isolated power smart terminal block

A modular I/O system comprising:

• at least one terminal base, the terminal base including a terminal block;
• and
• the terminal block of the at least one terminal base including at least one auxiliary wiring device engaged with the terminal base;
• wherein the at least one terminal base including the terminal block, or the at least one auxiliary wiring device, includes at least one electronic component adapted to be connected to an associated field device;
• wherein the at least one electronic component includes a power converter, a fuse, or a knife disconnect;
• wherein the at least one auxiliary wiring device includes a plurality of auxiliary wiring connectors adapted for connection to associated field device wires, said at least one auxiliary wiring device selectively physically connectable to said at least one terminal base in an operative position and selectively physically removable from said at least one terminal base by a user, said at least one terminal block comprises a receiver and said at least one auxiliary wiring device comprises a body including at least one mounting tab that projects outwardly from the body, wherein said at least one mounting tab is located in said receiver when said at least one auxiliary wiring device is connected to said at least one terminal base, said receiver comprises an open pocket into which said at least one mounting tab is inserted when said at least one auxiliary wiring device is connected to said at least one terminal base, and an I/O module operatively removably connected to the at least one terminal base and in communication with the associated field device through the corresponding auxiliary wiring device, and a network adapter module selects and controls the I/O module configured to perform input/output functions through the terminal block and the at least one auxiliary wiring device.