Siemens Simantic ET 200S Manual page 269

Technological modules
Modules that are equipped with technological functions, such as counting pulses,
positioning, and controlling stepping motor power units.
Terminating module
The ET 200S distributed IO system is completed by the terminating module. If you have not
inserted a terminating module, the ET 200S is not ready for operation.
Transmission rate
The transmission rate of a data transfer is measured in bits transmitted per second.
In the case of the ET 200S, transmission rates of 9.6 kbps to 12 Mbps are possible.
Voltage group
A group of electronic modules supplied by a power module.
ET 200S
Manual, Edition 10/2005, A5E00514527-01
Glossary
Glossary-9