Siemens RM400 C Series Operating Manual page 206

Abbreviations
STP shielded twisted-pair
SVGA Super Video Graphics Array
TACSI Terminal Attachment Concept in SINIX
TAK terminal attachment concentrator
TC terminal controller
TCP/IP Transport Control Protocol/Interface Program
TS Teleservice
UL Underwriters Laboratories
UPS uninterruptible power supply
UTP unshielded twisted-pair
VDE Verein deutscher Elektrotechniker (Association of German Electrical
Engineers)
VESA Video Electronics Standards Association
VGA Video Graphics Array
VT video terminal
WAN wide area network
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RM400 C Models U24802-J-Z146-2-7600