Remote Multiplexor card for the Low Energy Process Interface Unit (LEPIU), Thermocouple input. The multiplexor card uses CMOS logic and reed relays
for low energy multiplexing. Unlike the Hg relays used in the LL PIU, the reed relays have a significantly
lower operating life, especially when subjected to high common Inode voltages (above 25 volts from a low
impedance source).