List of Acronym
E220 Series Cellular Router User Guide 213
Acronym Description
for network topology discovery and quality of service diagnostics
M2M Machine to machine
MAC address Media access control address is a unique identifier assigned to
network interfaces for communications on the physical network
segment
MTU Maximum transmission unit of a communications protocol of a layer
is the size (in bytes) of the largest protocol data unit that the layer
can pass onwards
NAT Network address translation is a methodology of modifying network
address information in Internet Protocol (IP) datagram packet
headers while they are in transit across a traffic routing device for
the purpose of remapping one IP address space into another.
NTP Network Time Protocol is a networking protocol for clock
synchronization between computer systems over packet-switched,
variable-latency data networks
PPPoE Point-to-Point Protocol over Ethernet
PPTP Point-to-Point Tunneling Protocol
PSK Pre-shared key
QoS Quality of Service
RF Radio Frequency
Rx Reception
SIM Subscriber identity module
SMA SMA (Sub Miniature version A) connectors are semi-precision
coaxial RF connectors
SMS Short Message Service
SPI Serial Peripheral Interface
SSID Service set identification
TCP Transmission Control Protocol
TKIP Transmission Control Protocol
Tx Transmission
UDP User Datagram Protocol
UPnP Universal Plug and Play
VPN Virtual private network
WAN Wide Area network
Table 12.2-1: List of Acronyms