The CS110CBL3-L is required for the CS110 to operate. One end of the cable terminates in a military-style connector, and the other end terminates in pigtails. The connector attaches to the bulkhead-mount mating connector on the CS110. In most applications, the CS110CBL3 carries 12 V power from the system power supply. In applications where an additional datalogger is located at the measurement site, the power/SDM cable facilitates SDM communication between the two dataloggers (one being embedded in the CS110).