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RSSI
SD FLASH
SERVLET
SID
SNMP
TCP/IP
UDP
UMTS
USB
VDC
WAN
VPN
Copyright 2019
Received Signal Strength Indicator, a metric used to
quantify cellular signal strength and quality, ranging
between –60dB (strong) and –100dB (weak).
Secure Digital Flash (Memory), a non-volatile, non-
battery backed solid state memory device used by the
TransPortal for event recording.
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.
System ID, the unique address or identity of a cellular
system.
Simple Network management Protocol, a networking
protocol typically used to manage the operation of
networked printers and routers.
Standard networking and internetworking protocol
User Datagram Protocol, a non-standard or proprietary
networking protocol alternative to standardized
TCP/IP.
Universal Mobile Telecommunications System
Universal Serial Bus, high speed serial bus standard
to connect devices to a host computer.
Volts Direct Current
Wide Area Network
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.
SM-1H1.0002 Rev. 2, March 2019
TransPortalTM Interlock Monitor
6-3
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