Intrinsic safety (is) barriers mountable on terminal blocks of input/output (i/o) modules or other devices

A system comprising:

• a module comprising at least one input/output (I/O) channel;
• a terminal block comprising terminals configured to provide electrical connections for the at least one I/O channel;
• and
• a barrier assembly comprising one or more intrinsic safety barriers, each intrinsic safety barrier configured to receive at least one data or power signal, limit an amount of energy in the at least one data or power signal, and output the at least one energy-limited data or power signal;
• wherein each intrinsic safety barrier comprises at least one limiter circuit configured to limit the amount of energy in the at least one data or power signal;
• and
• wherein each intrinsic safety barrier is configured to be mounted on the terminal block.

A method comprising:

• mounting one or more intrinsic safety barriers on a terminal block, the terminal block comprising multiple terminals;
• and
• using each intrinsic safety barrier to receive at least one data or power signal, limit an amount of energy in the at least one data or power signal, and output the at least one energy-limited data or power signal;
• wherein each intrinsic safety barrier comprises at least one limiter circuit configured to limit the amount of energy in the at least one data or power signal.