Sierra Wireless AirLink RV50 Series User Manual page 504

ALEOS 4.9.0 Software Configuration User Guide for AirLink RV50 Series
Acronym or Term
PCS Personal Communications Services
A cellular communication infrastructure that uses a different frequency range than
AMPS.
PPP Point to Point Protocol
An alternative communications protocol used between computers, or between
computers and routers on the Internet. PPP is an enhanced SLIP. Also see SLIP.
PRI Product Release Instructions
A file containing the settings used to configure devices for a particular service
provider, customer, or purpose.
RF Radio Frequency
RoHS Restriction of use of Hazardous Substances mandated by EU Directive 2002/95.
RS-232 A series of standards for serial binary single-ended data and control signals
connecting between a DTE (Data Terminal Equipment) and a DCE (Data Circuit-
terminating Equipment). It is commonly used in computer serial ports.
Rx Receive
SIM, SIM Card Subscriber identity module or subscriber identification module.
An integrated circuit which securely stores the international mobile subscriber
identity (IMSI) and the related key used to identify and authenticate subscribers on
mobile telephony devices (such as mobile phones and computers).
SINR Signal to Interference plus Noise Ratio (SINR) is an RF parameter that is directly
proportional to throughput (the higher the number, the higher the throughput). It can
help LTE radio installers gauge the signal quality between the cell tower and the
radio module. For more information on interpreting the SINR values, see
obtain and interpret SINR values for LTE networks?
SKU Stock Keeping Unit
Identifies an inventory item: a unique code, consisting of numbers or letters and
numbers, assigned to a product by a retailer for purposes of identification and
inventory control.
SLIP Serial Line Internet (or Interface) Protocol
An Internet Protocol designed to work over serial ports and modem connections.
On personal computers, SLIP has been largely replaced by the Point-to-Point
Protocol (PPP), which has more features and does not require its IP address
configuration to be set before it is established. On microcontrollers SLIP is still the
preferred way of encapsulating IP packets due to its very small overhead.
Also see PPP.
SMS Short Message Service
A feature which allows users of a wireless device on a wireless network to receive
or transmit short electronic alphanumeric messages (up to 160 characters,
depending on the service provider).
TCH Traffic Channel
TIA / EIA Telecommunications Industry Association / Electronics Industry Association
A standards setting trade organization, whose members provide communications
and information technology products, systems, distribution services and
professional services in the United States and around the world.
Rev 1 Dec. 17
Definition
on page 478.
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