nRF9160 DK v1.1.0


The glossary contains terms and acronyms that are used in this document.

AT command

A command used to control the modem.

Band-Pass Filter (BPF)

An electronic device or circuit that passes frequencies within a certain range and rejects frequencies outside that range.



LTE-M User Equipment (UE) category with a single RX antenna, specified in 3GPP Release 13.


NB-IoT UE category with 200 kHz UE bandwidth and a single RX antenna, specified in 3GPP Release 13.

Clear to Send (CTS)

In flow control, the receiving end is ready and telling the far end to start sending.


Development Kit (DK)

A hardware development platform used for application development.


Embedded SIM (eSIM)

A form of programmable Subscriber Identity Module (SIM) that is embedded directly into a device.


Fast Identity Online (FIDO)

A bundle of hardware and software modules serving as a tracing interface between traced device(s) and user application.


General-Purpose Input/Output (GPIO)

A digital signal pin that can be used as input, output, or both. It is uncommitted and can be controlled by the user at runtime.


Global Positioning System (GPS)

A satellite-based radio navigation system that provides its users with accurate location and time information over the globe.


Hardware Flow Control (HWFC)

A handshaking mechanism used to prevent an overflow of bytes in modems. It uses two dedicated pins on the RS-232 connector, Request to Send and Clear to Send.


Inter-integrated Circuit (I2C)

A multi-master, multi-slave, packet-switched, single-ended, serial computer bus.


Low-Dropout Regulator (LDO)

A linear voltage regulator that can operate even when the supply voltage is very close to the desired output voltage.


Low-Noise Amplifier (LNA)

In a radio receiving system, an electronic amplifier that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio.


Long-Term Evolution (LTE)

A wireless broadband communication standard for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies. 



An open standard that is most suitable for medium throughput applications requiring low power, low latency, and/or mobility, like asset tracking, wearables, medical, POS, and home security applications. Also known as Cat-M1.

Mass Storage Device (MSD)

Any storage device that makes it possible to store and port large amounts of data in a permanent and machine-readable fashion.


nRF Cloud

Nordic Semiconductor's platform for connecting IoT devices to the cloud, viewing and analyzing device message data, prototyping ideas that use Nordic Semiconductor chips, and more. It includes a public REST API that can be used for building IoT solutions. See nRF Cloud (

Operational Amplifier (op-amp)

A high-gain voltage amplifier that has a differential input and, usually, a single output.


Printed Circuit Board (PCB)

A board that connects electronic components.


Receive Data (RXD)

A signal line in a serial interface that receives data from another device.


Request to Send (RTS)

In flow control, the transmitting end is ready and requesting the far end for a permission to transfer data.


SAW filter

A high-performing filter using Surface Acoustic Wave (SAW) technology. This technology employs piezoelectric transducers, which, when excited, produce waves that are used to filter out desired frequencies.

Serial Wire Debug (SWD)

A standard two-wire interface for programming and debugging Arm® CPUs.


Subscriber Identity Module (SIM)

A card used in UE containing data for subscriber identification.


Surface Acoustic Wave (SAW)

An acoustic wave traveling along the surface of a material exhibiting elasticity, with an amplitude that typically decays exponentially with depth into the substrate.


Subscriber Identity Module (SIM)

A card used in UE containing data for subscriber identification.


System in Package (SiP)

Several integrated circuits, often from different technologies, enclosed in a single module that performs as a system or subsystem.


System on Chip (SoC)

A microchip that integrates all the necessary electronic circuits and components of a computer or other electronic systems on a single integrated circuit.


Transmit Data (TXD)

A signal line in a serial interface that transmits data to another device.


Universal Asynchronous Receiver/Transmitter (UART)

A hardware device for asynchronous serial communication between devices.


Universal Integrated Circuit Card (UICC)

A new generation SIM used in UE for ensuring the integrity and security of personal data.


Universal Serial Bus (USB)

An industry standard that establishes specifications for cables and connectors and protocols for connection, communication, and power supply between computers, peripheral devices, and other computers.


User Equipment (UE)

Any device used by an end-user to communicate. The UE consists of the Mobile Equipment (ME) and the Universal Integrated Circuit Card (UICC).