Considerations for a Fixed Controller The power supply in the 2-slot SLC 500 fixed I/O chassis (1746-A2) can support only specific combinations of modules. Make sure the chassis power supply can support the 1746-NT8 and additional module power requirements.
The 1746-NT8 module provides the following electrical isolation: • 12.5V dc electrical isolation channel to channel • 500V dc for 1 minute electrical isolation channel to chassis ground • 500V dc for 1 minute electrical isolation channel to backplane Care must be taken when choosing a thermocouple type and connecting it to the 1746-NT8 module from the environment being measured. If adequate precautions are not taken for a given thermocouple type, the electrical isolation of the 1746-NT8 module may be compromised.
