Campbell CR300 Series Product Manual page 224

ger drives, and in binary or ASCII files that result from collecting final-data memory with
data logger support software.
DC
Direct current.
DCE
Data Communication Equipment. While the term has much wider meaning, in the limited
context of practical use with the data logger, it denotes the pin configuration, gender,
and function of an RS-232 port. The RS-232 port on the data logger is DCE. Interfacing a
DCE device to a DCE device requires a null-modem cable.
desiccant
A hygroscopic material that absorbs water vapor from the surrounding air. When placed
in a sealed enclosure, such as a data logger enclosure, it prevents condensation.
Device Configuration Utility
Software tool used to set up data loggers and peripherals, and to configure PakBus set-
tings before those devices are deployed in the field and/or added to networks.
DHCP
Dynamic Host Configuration Protocol. A TCP/IP application protocol.
differential
A sensor or measurement terminal wherein the analog voltage signal is carried on two
wires. The phenomenon measured is proportional to the difference in voltage between
the two wires.
Dim
A CRBasic command for declaring and dimensioning variables. Variables declared with
Dim remain hidden during data logger operations.
Appendix C. Glossary 211