ABB 650 Series Engineering Manual page 126

Section 10
Glossary
120
SMA connector
SMT
SMS
SNTP
SOF
SPA
SRY
ST
Starpoint
SVC
TC
TCS
TCP
TCP/IP
TEF
TLS
TM
TNC connector
TP
TPZ, TPY, TPX, TPS Current transformer class according to IEC
TRM
TYP
Subminiature version A, A threaded connector with
constant impedance.
Signal matrix tool within PCM600
Station monitoring system
Simple network time protocol – is used to synchronize
computer clocks on local area networks. This reduces the
requirement to have accurate hardware clocks in every
embedded system in a network. Each embedded node can
instead synchronize with a remote clock, providing the
required accuracy.
Status of fault
Strömberg protection acquisition, a serial master/slave
protocol for point-to-point communication
Switch for CB ready condition
Switch or push button to trip
Neutral point of transformer or generator
Static VAr compensation
Trip coil
Trip circuit supervision
Transmission control protocol. The most common transport
layer protocol used on Ethernet and the Internet.
Transmission control protocol over Internet Protocol. The
de facto standard Ethernet protocols incorporated into
4.2BSD Unix. TCP/IP was developed by DARPA for
Internet working and encompasses both network layer and
transport layer protocols. While TCP and IP specify two
protocols at specific protocol layers, TCP/IP is often used to
refer to the entire US Department of Defense protocol suite
based upon these, including Telnet, FTP, UDP and RDP.
Time delayed earth-fault protection function
Transport Layer Security
Transmit (disturbance data)
Threaded Neill-Concelman, a threaded constant impedance
version of a BNC connector
Trip (recorded fault)
Transformer Module. This module transforms currents and
voltages taken from the process into levels suitable for
further signal processing.
Type identification
1MRK 511 284-UEN A
650 series
Engineering manual