Integration Manual

Table Of Contents

TOBY-L2 and MPCI-L2 series - System Integration Manual

UBX-13004618 - R26 Design-in

Page 127 of 162

Beside the reduction of the Module-to-Ambient thermal resistance implemented by proper application hardware

design, the increase of module temperature can be moderated by proper application software implementation:

 Enable power saving configuration using the AT+UPSV command (see section 1.15.16).

 Enable module connected-mode for a given time period and then disable it for a time period enough long to

properly mitigate temperature increase.

2.15 ESD guidelines

The sections 2.15.1 and 2.15.2 are related to EMC / ESD immunity. The modules are ESD sensitive devices. The

ESD sensitivity for each pin (as Human Body Model according to JESD22-A114F) is specified in TOBY-L2 series Data

Sheet [1] or MPCI-L2 series Data Sheet [2]. Special precautions are required when handling the pins; for ESD

handling guidelines see section 3.2.

2.15.1 ESD immunity test overview

The immunity of devices integrating TOBY-L2 and MPCI-L2 series modules to Electro-Static Discharge (ESD) is part

of the Electro-Magnetic Compatibility (EMC) conformity which is required for products bearing the CE marking,

compliant with the Radio Equipment Directive (2014/53/EU), the EMC Directive (2014/30/EU) and the Low Voltage

Directive (2014/35/EU) issued by the Commission of the European Community.

Compliance with these directives implies conformity to the following European Norms for device ESD immunity:

ESD testing standard CENELEC EN 61000-4-2 [18] and the radio equipment standards ETSI EN 301 489-1 [19],

ETSI EN 301 489-52 [20], which requirements are summarized in Table 51.

The ESD immunity test is performed at the enclosure port, defined by ETSI EN 301 489-1 [19] as the physical

boundary through which the electromagnetic field radiates. If the device implements an integral antenna, the

enclosure port is seen as all insulating and conductive surfaces housing the device. If the device implements a

removable antenna, the antenna port can be separated from the enclosure port. The antenna port includes the

antenna element and its interconnecting cable surfaces.

The applicability of ESD immunity test to the whole device depends on the device classification as defined by ETSI

EN 301 489-1 [19]. Applicability of ESD immunity test to the relative device ports or the relative interconnecting

cables to auxiliary equipment, depends on device accessible interfaces and manufacturer requirements, as defined

by ETSI EN 301 489-1 [19].

Contact discharges are performed at conductive surfaces, while air discharges are performed at insulating surfaces.

Indirect contact discharges are performed on the measurement setup horizontal and vertical coupling planes as

defined in CENELEC EN 61000-4-2 [18].

For the definition of integral antenna, removable antenna, antenna port and device classification see ETSI

EN 301 489-1 [19]. For the contact / air discharges definitions see CENELEC EN 61000-4-2 [18].

Application