Siemens NCU 7 0.2 Series Manual page 108

Appendix
A.1 Abbreviations
SRAM Static RAM: Static memory (battery-backed)
TCU Thin Client Unit (communication with operator panels)
TS Teleservice
VDE Association of Electrical Engineering, Electronics and Information Technology (Germany)
Full duplex An Ethernet/PROFINET port can simultaneously transmit and receive data.
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Manual, 02/2011, 6FC5397-0AP20-0BA0
NCU 7x0.2