Service manual

Glossary, Abbreviations, and Acronyms
SM-1H1.0002, Rev. 1, July 2009 6-3
SD FLASH Secure Digital Flash (Memory), a non-volatile, non-battery
backed solid state memory device used by the TransPortal
for event recording.
SERVLET A Java application that runs in a Web server or application
server and provides server-side processing such as accessing
a database and e-commerce transactions.
SID System ID, the unique address or identity of a cellular
system.
SNMP Simple Network management Protocol, a networking
protocol typically used to manage the operation of
networked printers and routers.
TCP/IP Standard networking and internetworking protocol
UDP User Datagram Protocol, a non-standard or proprietary
networking protocol alternative to standardized TCP/IP.
UMTS Universal Mobile Telecommunications System
USB Universal Serial Bus, high speed serial bus standard to
connect devices to a host computer.
VDC Volts Direct Current
WAN Wide Area Network
VPN Virtual Private Network, a computer network in which
some of the links between nodes are carried by open
connections or virtual circuits in some larger network (e.g.,
the Internet) as opposed to running across a single private
network.