ANALOG I/O BACKPANELS Analog I/O signal channels provide each 8B module with an analog bus, and all module outputs are simultaneously accessible to high-speed data acquisition boards. A temperature sensor each channel provides cold junction compensation for thermocouple input modules. Field connections are terminated with four screw terminals at each module site. It has -40 to 85 °C operating range, relative humidity 95% noncondensing and high-density screw clamp, 16 AWG max, interface connector.