SARA-N2 series - Data Sheet

UBX-15025564 - R16

Functional description

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1.5 AT command support

The SARA-N2 series modules support AT commands according to the 3GPP standards, plus the

u-blox AT command extensions.

Commands Manual [1].

1.6 Supported features

Feature

Description

Network Indication

Pin configured to indicate the network status: registered home network, registered roaming,

data call enabled, no service. The feature can be enabled through the +UGPIOC AT command.

Embedded UDP stack

Embedded UDP/IP stack for UDP sockets.to establish a transparent end-to-end communication.

CoAP

The Constrained Application Protocol (CoAP) is a datagram-based client/server application

protocol for devices on the constrained network (e.g. low overhead, low-power), designed to

easily translate to HTTP for simplified integration with the web. CoAP clients can use the GET,

PUT, POST and DELETE methods using requests and responses with a CoAP server.

Release Assistance

The Release Assistance feature introduced in 3GPP Rel.13 allows the module to request for the

RRC connection to be dropped as soon as the message has been received by the network. This

feature allows a reduction in the module power consumption.

Self-Registration

Support of Self-Registration feature according to CTCC (China Telecom Corporation) and CUCC

(China Unicom Corporation) requirements.

Firmware update Over AT

commands (FOAT)

Firmware module update over AT command interface.

The feature can be enabled and configured through the +UFWUPD AT command.

Firmware update Over The

Air (FOTA)

The Firmware over-the-air (FOTA) component uses the CoAP context to download a FW update

package from a dedicated server.

Power Saving Mode (PSM) The Power Saving Mode (PSM) feature, defined in 3GPP Rel.13, allows further reduction of the

module current consumption maximizing the amount of time a device can remain in extremely

low power deep sleep mode during periods of data inactivity. It can be activated and configured

by the +CPSMS AT command.

Deep-sleep mode

The SARA-N2 series modules enters in extremely low power deep sleep mode whenever

possible, using the internal 32 kHz clock to maintaining an extremely low current consumption.

This optimizes the life time of the battery pack used to supply the system

eDRX

Extended mode DRX, based on 3GPP Rel.13, reduces the amount of signaling overhead

decreasing the frequency of scheduled measurements and/or transmissions performed by the

module. This in turn leads to a reduction in the module power consumption while maintaining a

perpetual connection with the base station

Coverage Enhancement

Coverage Enhancements Modes introduced in 3GPP Rel.13 for the NB-IoT system improve the

cell signal penetration allowing a 20 dB coverage enhancement over standard GSM systems.

Table 3: Some of the main features supported by SARA-N2 series modules