The AC1367 is a voltage-switch input module that allows a convenient, low cost and safe connection of a high-level pre-conditioned analog signal to the 5B Series Backplane system connector. This module accepts a -5V to +5V input and provides a -5V to +5 output, while protecting computer-side circuitry from field-side overvoltage faults. There is no gain or attenuation of the input signal and the output is not isolated. In addition, AC1367 modules are mix-and-match and hot swappable, so they can be inserted or removed from any socket in the same backplane without disrupting system power.