Campbell Scientific CR1000 Measurement and Control System - Manual (Page 469)

Section 11. Glossary
469
terminal emulator is available in most datalogger support software
available from Campbell Scientific.
thermistor
A thermistor is a resistive element whose change in resistance with
temperature is wide, stable, and well‐characterized. It can be used as a
device to measure temperature. The output of a thermistor is usually
non‐linear, so measurement requires linearization, usually by means of
the Steinhart‐Hart or another polynomial equation. Campbell Scientific
thermistors, models 107, 108, and 109, are linearized by Steinhart‐Hart
as implemented in the Therm107(), Therm108(), and Therm109()
instructions.
throughput
The throughput rate is the rate at which a measurement can be taken,
scaled to engineering units, and the reading stored in a data table. The
CR1000 has the ability to scan sensors at a rate exceeding the
throughput rate. The primary factor affecting throughput rate is the
amount of processing specified by the user. In sequential‐mode
operation, all processing called for by an instruction must be completed
before moving on to the next instruction.
TTL
Transistor‐transistor logic. A serial protocol using 0 Vdc and 5 Vdc as
logic signal levels.
TLS
Transport layer security. An Internet communications security protocol.
toggle
To reverse the current power state.
UINT2
Data type used for efficient storage of totalized pulse counts, port
status (status of 16 ports stored in one variable, for example) or integer
values that store binary flags.
UPS
Uninterrubtable power supply. A UPS can be constructed for most
datalogger applications using ac line power, an ac/ac or ac/dc wall
adapter, a charge controller, and a rechargeable battery.