SARA-R4 datasheet(9/43 Pages) U-BLOX

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SARA-R4 series - Data sheet

UBX-16024152 - R18

Functional description

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1.5 AT command support

The SARA-R4 series modules support AT commands according to the 3GPP standards TS 27.007 [4],

TS 27.005 [6], TS 27.010 [7], and the u-blox AT command extension.

☞ For the complete list of all supported AT commands and their syntax, see the SARA-R4 series AT

commands manual [1].

1.6 Supported features

Table 3 lists some of the main features supported by SARA-R4 series modules. For more details, see

the SARA-R4 series system integration manual [2] and the SARA-R4 series AT commands manual [1].

Feature

Description

Network indication

GPIO 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.

Antenna detection

The ANT_DET pin provides antenna presence detection capability, evaluating the resistance from

the ANT pin to GND by means of an external antenna detection circuit implemented on the

application board.

The antenna supervisor (i.e. antenna detection) feature can be enabled through the +UANTR AT

command.

Embedded TCP and UDP

stack

Embedded TCP/IP and UDP/IP stack including direct link mode for TCP and UDP sockets.

Sockets can be set in Direct Link mode to establish a transparent end-to-end communication

with an already connected TCP or UDP socket via the serial interface.

FTP

File Transfer Protocol functionality is supported via AT commands.

HTTP

Hyper-Text Transfer Protocol functionality is supported via AT commands.

Embedded SSL/TLS 11

With the support of X.509 certificates, embedded SSL/TLS provides server and client

authentication, data encryption, data signature and enables TCP/IP applications to communicate

over a secured and trusted connection. The feature can be configured and enabled by the

+USECMNG and +USECPRF AT commands.

Device and data security 12 Device security: authentication, updates

Data security: PSK, E2E encryption, local encryption

For more details, see the security suite application note [4]

MQTT 13

Message Queuing Telemetry Transport is an ISO standard publish-subscribe messaging protocol

designed for lightweight M2M communications over TCP. MQTT allows clients to communicate

one-to-one, one-to-many and many-to-one over a long-lived outgoing TCP connection.

BIP 13

Bearer Independent Protocol for Over-the-Air SIM provisioning.

Dual stack IPv4/IPv6

Capability to move between IPv4 and dual stack network infrastructures.

IPv4 and IPv6 addresses can be used.

MNO profiles 13

Mobile network operator profiles provide with a powerful and flexible method to configure the

SARA-R4 series modules to seamlessly work with the selected mobile network operator.

Using the MNO profiles the device is dynamically configured to use the proper bands, RATs,

power saving parameters, e-DRX parameters and the protocol stack settings needed to operate

on the selected network in full compliance with operator requirements.

Use the +UMNOPROF AT command to select a profile for the network operator.

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 (uFOTA)

u-blox firmware module update over the LTE air interface client/server solution using LWM2M.

11 Not supported by “00” product version

12 Not supported by “00”, “01”, “02” and “52” product versions

13 Not supported by “00” and “01” product versions

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