A method of assembling a circuit board assembly is provided. The carbon blacks provide desirable jetness and impact strength, as well as good dispersion in a polymer. A management subsystem is operative with the cryptographic unit for configuring IP networking functions and distributing network configuration information to the data processing subsystem through the cryptographic unit. The linear electrode is contact with the roller to absorb the electrostatic spinning solution onto the linear electrode. An analyte measurement system can include such a strip and test meter to receive the strip.