American Audio UCD-200 - REV 8-10 User Manual download pdf (Page 9)

SARA-U2 series - Data Sheet

UBX-13005287 - R05 Early Production Information Functional description

Page 9 of 51

1.6 Supported features

Table 4 lists the main features supported by SARA-U2 modules. For more details see the SARA-G3 and SARA-U2

series System Integration Manual [7] and u-blox AT commands manual [4].

Feature

Description

Network indication

GPIO configured to indicate the network status: registered home network, registered roaming, voice or 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 detection feature can be enabled through the +UANTR AT command.

Jamming detection

Detects some “artificial” interference that obscures the operator’s carriers entitled to give access to the

GSM/UMTS service and reports the start and stop of such conditions to the application processor (AP). The AP

can react appropriately by e.g. switching off the radio transceiver to reduce power consumption and monitoring

the environment at constant periods.

The feature can be enabled and configured through the +UCD 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 serial interface.

FTP, FTPS

File Transfer Protocol as well as Secure File Transfer Protocol (SSL encryption of FTP control channel)

functionalities are supported via AT commands.

HTTP, HTTPS

Hyper-Text Transfer Protocol as well as Secure Hyper-Text Transfer Protocol (SSL encryption) functionalities are

supported via AT commands. HEAD, GET, POST, DELETE and PUT operations are available. Up to four client

contexts can be simultaneously used.

IPv4/IPv6 dual-stack

Capability to move between IPv4 and dual stack network infrastructures. IPv4 and IPv6 addresses can be used.

GNSS via modem

Full access to u-blox positioning chips and modules is available through a dedicated DDC (I

C) interface. This

means that from any host processor a single serial port can control the cellular module and the positioning chip

or module. For more details see the GNSS Implementation Application Note [8].

Embedded AssistNow

Software

Embedded AssistNow Online and AssistNow Offline clients to provide better GNSS performance and faster

Time-to-First-Fix. An AT command can enable / disable the clients.

CellLocate

Enables the estimation of device position based on the parameters of the mobile network cells visible to the

specific device based on the CellLocate

database:

 Normal scan: only the parameters of the visible home network cells are sent

 Deep scan: the parameters of all surrounding cells of all mobile operators are sent

CellLocate

is implemented using a set of AT commands for CellLocate

service configuration and position

request.

Hybrid Positioning

The module current position is provided using a u-blox positioning chip or module or the estimated position from

CellLocate

depending by which positioning method provides the best and fastest solution according to the user

configuration.

Hybrid positioning is implemented through a set of AT commands that allow the configuration and the position

request.

Firmware update Over

AT commands (FOAT)

Firmware module upgrade over UART and USB interface using AT command.

SIM Access Profile (SAP)

Allows access and use of a remote (U)SIM card instead of the local SIM card directly connected to the module

(U)SIM interface. The module acts as an SAP Client establishing a connection and performing data exchange to a

SAP Server directly connected to the remote SIM.

The modules provide a dedicated USB SAP channel and a dedicated multiplexer SAP channel over UART for

communication with the remote (U)SIM card.

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