Sensors, multiplexed communication techniques, and related systems

A data center, comprising:

• a liquid-cooling system comprising:
• a pump,
• a liquid-cooled cold plate having a thermal interface and being configured to transfer heat received through the thermal interface to a liquid passing through the liquid-cooled cold plate,
• a heat exchanger, wherein the liquid-cooling system is configured to convey the heated liquid to the heat exchanger, and wherein the heat exchanger is configured to reject heat from the heated liquid to another medium;
• a sensor circuit having a plurality of sensors and being configured to emit a sensor signal containing encoded information corresponding to an operational parameter observed by each in the plurality of sensors;
• and
• a control circuit in electrical communication with the pump, wherein the control circuit is configured to adjust operation of the liquid-cooling system responsive to a received control signal by adjusting on-going operation of the pump;
• wherein the data center further comprises a server having a heat-generating component cooled by the liquid-cooled cold plate;
• and
• a monitoring circuit configured to infer from the sensor signal an operating condition of the liquid-cooling system, wherein the monitoring circuit is further configured to output a control signal to the control circuit corresponding to the inferred operating condition of the liquid cooling system.