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SIG-00-07-11 SEPTEMBER 2012 (REVISED OCTOBER 2019)
Version No.: B.2
TERM
DESCRIPTION
DT
Diagnostic Terminal. Siemens PC-based diagnostic software.
ECD
External Configuration Device. A serial EEPROM (Flash Memory) device used to
store site-specific configuration data (MCF, SIN, UCN, etc.) for the VIU.
EEPROM
E
lectrically
E
rasable
P
rogrammable
R
ead-
O
nly
M
emory. A type of non-volatile
memory used in computers and other electronic devices to store small amounts of
data that must be saved when power is removed. When larger amounts of static data
are to be stored, a specific type of EEPROM called a flash memory is used.
ELS
Serial Link extenSion board.
EMP
Edge Messaging Protocol. A common message format used for edge integration.
Examples of integration edges are wireless transports and various messaging
systems that may be used by the various railroads (e.g., using EMP to communicate
between mobile applications and back office applications using wireless
communications). EMP defines the message format, header, and operating rules
which facilitate interoperable message transmission, reception, decoding, and routing.
ESSR
Ethernet Spread Spectrum Radio.
FRA
Federal Railroad Administration. The purpose of FRA is to: promulgate and enforce
rail safety regulations; administer railroad assistance programs; conduct research and
development in support of improved railroad safety and national rail transportation
policy; and consolidate government support of rail transportation activities.
GCP
Grade Crossing Predictor.
GCS
Geographic Configuration Suite. Used to program the VIU-20e MCF.
GMT
The time as measured on the prime meridian running through Greenwich, England:
used in England and as a standard of calculation elsewhere. Also called
Greenwich
Mean Time, Greenwich Civil Time, Universal Time
GOL
Geographic Object Library. A collection of pre-configured track and signal elements
used by Siemens Geographic Configuration Suite software for building track layouts.
Each GOL object posses the necessary track element characteristics as defined by
the FRA rules.
GPS
Global Positioning System.
HMAC
Keyed-Hash Message Authentication Code. A type of message authentication code
(MAC) calculated using a specific algorithm involving a cryptographic hash function in
combination with a secret key.
HS
Home Signal.
LCT
Line Controller Task, A function of the Siemens Mobility, Inc™ Packet Switch
LCM
Locomotive Communication Module. Radio located on board a locomotive.
LD
Line Driver