
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