Definitions; Abbreviations - Siemens ST950 Plus+ User Manual

ST950 Plus+ User Manual

Definitions

Item Definition
Bit Binary digit (i.e. `0' or `1')
Byte Eight bit data array (i.e. bits 0-7, and 8-15 are bytes)
EM Controller identification number (ElectroMatic).
CIC Configuration Identity Code (equivalent to EM above)
GVP Generic Versatile Platform - used by ST950 and other Siemens products to
provide general services such as comms, user interface, etc.
STS A scale drawing of the intersection including controller position, detector loop
positions and specification, cable routing and poles with signal head
(Site to Scale)
arrangements.
Word Two-byte data array (i.e. bits 0-15 constitutes a data word)
Works Specification Document produced by Siemens, which details the hardware required for the
controller and includes Site Data, usually in the form of a printout of the data
entered on the configurator.

Abbreviations

Abbreviation Meaning
AC Alternating Current
BCD Binary Coded Decimal
CET Central Earth Terminal
CLF Cableless Linking Facility
CIC Controller Interface Card
CLU Cableless Linking Unit
CPU Central Processing Unit
CRC Cyclic Redundancy Code
CRL Certificate Revocation List
CTB Controller Terminal Backplane
DC Direct Current
DFM Detector Fault Monitor
DHCP Dynamic Host Configuration Protocol
DNS Domain Name System
ELV Extra Low Voltage
GSPI Generic Serial Peripheral Interface
HI High Intensity
HFF Hardware Fail Flash (ST950 LV/ELV Only)
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