SARA-G3 series - System Integration Manual
UBX-13000995 - R06
Objective Specification
Design-in
Page 157 of 218
2.12
ESD guidelines
2.12.1
ESD immunity test overview
The immunity of devices integrating SARA-G3 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 R&TTE Directive (99/5/EC), the EMC Directive (89/336/EEC) and the
Low Voltage Directive (73/23/EEC) 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 [15] and the radio equipment standards ETSI
EN 301 489-1 [16], ETSI EN 301 489-7 [17], ETSI EN 301 489-24 [18], which requirements are
summarized in
The ESD immunity test is performed at the enclosure port, defined by
ETSI EN 301 489-1 [16] as the
physical boundary through which the electromagnetic field radiates. If the device implements an integral
antenna, the enclosure port is defined 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 the ESD immunity test to the whole device depends on the device classification as
defined by
ETSI EN 301 489-1 [16]. Applicability of the ESD immunity test to the relative device ports
or the relative interconnecting cables to auxiliary equipments, depends on device accessible interfaces and
manufacturer requirements, as defined by
ETSI EN 301 489-1 [16].
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 [15].
For the definition of integral antenna, removable antenna, antenna port, device classification refer to
ETSI EN 301 489-1 [16].
CENELEC EN 61000-4-2 [15] defines the contact and air discharges.
Application
Category
Immunity Level
All exposed surfaces of the radio equipment and ancillary equipment in
a representative configuration
Contact Discharge
4 kV
Air Discharge
8 kV
Table 38: Electro-Magnetic Compatibility ESD immunity requirements as defined by CENELEC EN 61000-4-2, ETSI EN 301 489-1, ETSI
EN 301 489-7, ETSI EN 301 489-24
2.12.2
ESD immunity test of u-blox SARA-G3 series reference designs
Although Electro-Magnetic Compatibility (EMC) certification is required for customized devices integrating
SARA-G3 series modules for R&TTED and European Conformance CE mark, EMC certification (including
ESD immunity) has been successfully performed on SARA-G3 series modules reference design according
to
CENELEC EN 61000-4-2 [15], ETSI EN 301 489-1 [16], ETSI EN 301 489-7 [17], ETSI EN 301
489-24 [18] European Norms.
