Glossary - Siemens A53457 Installation & Maintenance

GLOSSARY

AAR:
ARP:
AServer:
ATCS:
BCM:
CRC:
CTS:
DHCP:
DNS:
Echelon®:
ESD:
Document No.: COM-00-05-16
Version: C.1
Association of American Railroads
Address Resolution Protocol
AServer – Safetran (Siemens Rail Automation) ATCS Server
(ASERVER.EXE) is a standalone executable program that
manages statistical and diagnostic traffic in an ATCS (Automatic
Train Control System) environment. Its primary function is to route
Network Management System (NMS) data packets between
endpoints in a LAN-based WCC network. Endpoints include
WCC/FPD, WCM, PC workstations, ATCS-aware hardware devices
and software services.
Advanced Train Control System - A set of standards compiled by
the AAR for controlling all aspects of train operation.
Base Control Module
Cyclical Redundancy Check – A checksum for a data packet that is
normally calculated and appended to the data so that the receiver
can verify that no data was lost or corrupted during transit.
Clear To Send – An indication/signal that the transmit line is ready
to send or forward data.
Dynamic Host Configuration Protocol – An Internet protocol for
automating the configuration of computers that use TCP/IP. DHCP
can be used to automatically assign IP addresses, to deliver
TCP/IP stack configuration parameters such as the subnet mask
and default router, and to provide other configuration information.
Domain Name Server – (also known as Directory Name Service) A
distributed database of information associated with domain names,
most importantly the IP address. A DNS allows easily remembered
domain names to be automatically mapped to a machine's IP
address.
Twisted pair local area network.
Electrostatic Discharge – A source of static electricity which can be
harmful to low voltage components. A charge of built up static
electricity within a person usually caused from rubbing on carpet or
other similar material, especially during dry weather, and then
discharged by touching some object. Use of Personal Protective
xix
June 2006, Revised June 2014