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Ublox SARA-N210 System Integration Manual

Power-optimized nb-iot (lte cat nb1) modules
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SARA-N2 series
Power-optimized NB-IoT (LTE Cat NB1) modules
System Integration Manual
Abstract
This document describes the features and the system integration of the SARA-N2 series NB-IoT
modules. These modules are a complete and cost efficient solution offering single-band and
dual-band data transmission for the Internet of Things technology in the compact SARA form factor.
www.u-blox.com
UBX-17005143 - R06

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  • Page 1 SARA-N2 series Power-optimized NB-IoT (LTE Cat NB1) modules System Integration Manual Abstract This document describes the features and the system integration of the SARA-N2 series NB-IoT modules. These modules are a complete and cost efficient solution offering single-band and dual-band data transmission for the Internet of Things technology in the compact SARA form factor. www.u-blox.com UBX-17005143 - R06...

  • Page 2: Document Information

    SARA-N200-02B-01 06.57 A09.06 UBX-18048558 Mass Production SARA-N201 SARA-N201-02B-00 06.57 A07.03 UBX-18005015 End of Life SARA-N201-02B-01 06.57 A08.05 UBX-18023224 Mass Production SARA-N210 SARA-N210-02B-00 06.57 A07.03 UBX-18005015 End of Life SARA-N210-02B-01 06.57 A09.06 UBX-18048558 Mass Production SARA-N211 SARA-N211-02X-00 06.57 A07.03 UBX-18005015 End of Life SARA-N211-02X-01 06.57...

  • Page 3: Table Of Contents

    SARA-N2 series - System Integration Manual Contents Document Information ..........................2 Contents ................................3 System description ..........................6 Overview ................................ 6 1.2 Architecture ..............................7 1.3 Pin-out ................................8 1.4 Operating modes ............................10 1.5 Supply interfaces ............................11 1.5.1 Module supply input (VCC) ......................
  • Page 4 SARA-N2 series - System Integration Manual 2.5 SIM interface .............................. 43 2.6 Serial interfaces ............................46 2.6.1 Asynchronous serial interface (UART) ..................46 2.6.2 Secondary asynchronous serial interface (Secondary UART)..........48 2.6.3 DDC (I C) interface ..........................49 2.7 General Purpose Input/Output (GPIO) ....................49 2.8 Reserved pins (RSVD) ..........................
  • Page 5 SARA-N2 series - System Integration Manual 4.2 European Conformance CE mark ......................65 4.3 ATEX conformance ........................... 66 4.4 Chinese conformance ..........................67 4.5 Taiwanese conformance ......................... 67 Product testing ........................... 68 5.1 u-blox in-series production test ......................68 5.2 Test parameters for OEM manufacturer ..................... 68 5.2.1 “Go/No go”...

  • Page 6: System Description

    ● ● ● ● ● ● ● ● ● APAC SARA-N201 APAC ● ● ● ● ● ● ● ● ● SARA-N210 Europe ● ● ● ● ● ● ● ● ● SARA-N211 Europe NB1 8,20 ● ● ● ●...

  • Page 7: Architecture

    SARA-N2 series - System Integration Manual Table 2 summarizes cellular radio access technology characteristics of SARA-N2 series modules. Item SARA-N200 SARA-N201 SARA-N210 SARA-N211 SARA-N280 NB-IoT protocol stack 3GPP Release 13 3GPP Release 13 3GPP Release 13 3GPP Release 13 3GPP Release 13...

  • Page 8: Pin-Out

    SARA-N2 series - System Integration Manual 1.3 Pin-out Table 3 lists the pin-out of the SARA-N2 series modules, with pins grouped by function. Function Pin Name Pin No Description Remarks Module supply All VCC pins must be connected to external supply. Power 51, 52, 53 input...
  • Page 9 SARA-N2 series - System Integration Manual Function Pin Name Pin No Description Remarks UART UART data output Circuit 104 (RXD) in ITU-T V.24, for AT command and data, FOAT and FW upgrade via dedicated tool. It operates at VCC voltage level. Provide a test point on this pin for diagnostic purpose.

  • Page 10: Operating Modes

    SARA-N2 series - System Integration Manual 1.4 Operating modes SARA-N2 series modules have several operating modes. The operating modes defined in Table 4 described in detail in Table 5 provide general guidelines for operation. Figure 2 describes the transition between the different operating modes. General Status Operating Mode Definition...

  • Page 11: Supply Interfaces

    SARA-N2 series - System Integration Manual powered Switch ON: Switch OFF: • Apply VCC • Remove VCC Up-linlk transmission, reception of network signalling indications If there is no activity for or downlink data reception a defined time interval Connected Active Deep-sleep No RF Tx/Rx in progress •...
  • Page 12 SARA-N2 series - System Integration Manual Item Requirement Remark VCC nominal voltage Within VCC normal operating range: The module cannot be switched on if VCC voltage value is below the normal operating range minimum 3.1 V min. / 4.0 V max limit.

  • Page 13: Generic Digital Interfaces Supply Output (V_Int)

    SARA-N2 series - System Integration Manual A proper power supply circuit for SARA-N2 series modules must be able to withstand the current values present during the data transmission at maximum power, even though NB-IoT systems should be designed to keep the module in deep-sleep mode for most of the time, with an extremely low current consumption in the range of few microamps.

  • Page 14: System Function Interfaces

    SARA-N2 series - System Integration Manual 1.6 System function interfaces 1.6.1 Module power-on 1.6.1.1 Switch-on events When the SARA-N2 series modules are in the not-powered mode (i.e. switched off with the VCC module supply not applied), they can be switched on by: ...

  • Page 15: Module Power-Off

    SARA-N2 series - System Integration Manual 1.6.2 Module power-off The SARA-N2 series modules can be switched off by:  Removal of the VCC supply supply; the voltage drops below the operating range minimum limit ☞ It is highly recommended to avoid an abrupt removal of the VCC supply during module normal operation: the VCC supply should be removed only when the V_INT supply output is switched off by the module.

  • Page 16: Antenna Interface

    SARA-N2 series - System Integration Manual Antenna interface 1.7.1 Antenna RF interface (ANT) The ANT pin of SARA-N2 series modules represents the RF input/output for the cellular RF signals reception and transmission. The ANT pin has a nominal characteristic impedance of 50  and must be connected to the antenna through a 50 ...

  • Page 17: Antenna Detection Interface (Ant_Det)

    SARA-N2 series - System Integration Manual 1.7.2 Antenna detection interface (ANT_DET) ☞ Antenna detection interface is not supported in the "02" version of the product. The ANT_DET pin is an Analog to Digital Converter (ADC) input used to sense the antenna presence evaluating the resistance from the ANT pin to GND by means of an external antenna detection circuit implemented on the application board.
  • Page 18 SARA-N2 series - System Integration Manual The CTS output line can be configured as RING indicator, to signal an incoming message received by the module or an URC event, or as Network status indicator (for more details see section 1.10 and the SARA-N2 series AT Commands Manual [3], +URING, +UGPIOC AT commands).

  • Page 19: Secondary Asynchronous Serial Interface (Secondary Uart)

    SARA-N2 series - System Integration Manual 1.9.1.3 UART and deep sleep mode To limit the current consumption, SARA-N2 modules automatically enter deep-sleep mode whenever possible, that is if there is no data to transmit or receive. When in deep-sleep mode the UART interface is still completely functional and the module can accept and respond to any AT command.

  • Page 20: General Purpose Input/Output (Gpio)

    SARA-N2 series - System Integration Manual 1.10 General Purpose Input/Output (GPIO) SARA-N2 series modules provide the following pins:  GPIO1 pin, working at the V_INT (1.8 V) voltage domain, supporting the Secondary UART data output functionality (see section 1.9.2 Table ...

  • Page 21: Design-In

    SARA-N2 series - System Integration Manual Design-in Overview For an optimal integration of SARA-N2 series modules in the final application board, follow the design guidelines stated in this section. Every application circuit must be properly designed to guarantee the correct functionality of the related interface, however a number of points require higher attention during the design of the application device.

  • Page 22: Supply Interfaces

    SARA-N2 series - System Integration Manual 2.2 Supply interfaces 2.2.1 Module supply (VCC) 2.2.1.1 General guidelines for VCC supply circuit selection and design All the available VCC pins must be connected to the external supply minimizing the power loss due to series resistance.
  • Page 23 SARA-N2 series - System Integration Manual requirements: a DC/DC switching charger is the typical choice when the charging source has an high nominal voltage (e.g. ~12 V), whereas a linear charger is the typical choice when the charging source has a relatively low nominal voltage (~5 V). If both a permanent primary supply / charging source (e.g. ~12 V) and a rechargeable back-up battery (e.g.
  • Page 24 SARA-N2 series - System Integration Manual maximum power (see the SARA-N2 series Data Sheet for more details). The antenna matching influences the current consumption; for this reason, the current consumption at maximum Tx power with the intended antenna (i.e. on the final application board) should be used to characterize the battery maximum pulse requirements.
  • Page 25 SARA-N2 series - System Integration Manual Reference Description Part Number - Manufacturer T520B107M006ATE015 - Kemet 100 µ F Capacitor Tantalum B_SIZE 20% 6.3V 15m 100 nF Capacitor Ceramic X7R 0402 10% 16 V GRM155R71C104KA01 - Murata 10 nF Capacitor Ceramic X7R 0402 10% 16 V GRM155R71C103KA01 - Murata 56 pF Capacitor Ceramic C0G 0402 5% 25 V GRM1555C1E560JA01 - Murata...
  • Page 26 SARA-N2 series - System Integration Manual 2.2.1.4 Guidelines for VCC supply circuit design using a switching regulator The use of a switching regulator is suggested when the difference from the available supply rail to the VCC value is high: switching regulators provide good efficiency transforming a 12 V or greater voltage supply to the typical 3.6 V value of the VCC supply.
  • Page 27 SARA-N2 series - System Integration Manual Reference Description Part Number - Manufacturer 22 µ F Capacitor Ceramic X5R 1210 10% 25 V GRM32ER61E226KE15 - Murata 100 µ F Capacitor Tantalum B_SIZE 20% 6.3V 15m T520B107M006ATE015 - Kemet 5.6 nF Capacitor Ceramic X7R 0402 10% 50 V GRM155R71H562KA88 - Murata 6.8 nF Capacitor Ceramic X7R 0402 10% 50 V GRM155R71H682KA88 - Murata...
  • Page 28 SARA-N2 series - System Integration Manual 2.2.1.5 Guidelines for VCC supply circuit design using an LDO linear regulator The use of a linear regulator is suggested when the difference from the available supply rail and the VCC value is low: linear regulators provide high efficiency when transforming a 5 V supply to a voltage value within the module VCC normal operating range.
  • Page 29 SARA-N2 series - System Integration Manual 2.2.1.6 Additional guidelines for VCC supply circuit design To reduce voltage drops, use a low impedance power source. The resistance of the power supply lines (connected to the VCC and GND pins of the module) on the application board and battery pack should also be considered and minimized: cabling and routing must be as short as possible to minimize power losses.
  • Page 30 SARA-N2 series - System Integration Manual 2.2.1.7 Guidelines for VCC supply layout design Good connection of the module VCC pins with DC supply source is required for correct RF performance. Guidelines are summarized in the following list:  All the available VCC pins must be connected to the DC source. ...

  • Page 31: Interface Supply (V_Int)

    SARA-N2 series - System Integration Manual 2.2.2 Interface supply (V_INT) 2.2.2.1 Guidelines for V_INT circuit design The V_INT digital interfaces 1.8 V supply output can be mainly used to:  Indicate when the module is switched on, and radio is on (see section 1.6.1 for more details) ☞...

  • Page 32: System Functions Interfaces

    SARA-N2 series - System Integration Manual 2.3 System functions interfaces 2.3.1 Module reset (RESET_N) 2.3.1.1 Guidelines for RESET_N circuit design As described in SARA-N2 series Data Sheet [1], the module has an internal pull-up resistor on the reset input line, so an external pull-up is not required on the application board. When the RESET_N input is connected to a push button that shorts the RESET_N pin to ground, the pin will be externally accessible on the application device.

  • Page 33: Antenna Interface

    SARA-N2 series - System Integration Manual 2.4 Antenna interface The ANT pin, provided by all the SARA-N2 series modules, represents the RF input/output used to transmit and receive the RF cellular signals: the antenna must be connected to this pin. The ANT pin has a nominal characteristic impedance of 50 ...
  • Page 34 SARA-N2 series - System Integration Manual In both cases, selecting an external or an internal antenna, observe these recommendations:  Select an antenna providing optimal return loss (or V.S.W.R.) figure over all the operating frequencies.  Select an antenna providing optimal efficiency figure over all the operating frequencies. ...
  • Page 35 SARA-N2 series - System Integration Manual Figure 16 Figure 17 provide two examples of proper 50  coplanar waveguide designs. The first transmission line can be implemented in case of 4-layer PCB stack-up herein described, the second transmission line can be implemented in case of 2-layer PCB stack-up herein described. 500 µm 380 µm 500 µm L1 Copper...
  • Page 36 SARA-N2 series - System Integration Manual Additionally to the 50  impedance, the following guidelines are recommended for the transmission line design:  Minimize the transmission line length: the insertion loss should be minimized as much as possible, in the order of a few tenths of a dB. ...
  • Page 37 SARA-N2 series - System Integration Manual Guidelines for RF termination design The RF termination must provide a characteristic impedance of 50  as well as the RF transmission line up to the RF termination itself, to match the characteristic impedance of the ANT pin of the module.
  • Page 38 SARA-N2 series - System Integration Manual  The antenna shall provide appropriate gain figure (i.e. combined antenna directivity and efficiency figure) so that the electromagnetic field radiation intensity does not exceed the regulatory limits specified in some countries (e.g. by FCC in the United States). ...
  • Page 39 SARA-N2 series - System Integration Manual Table 16 lists some examples of possible internal off-board PCB-type antennas with cable and connector. Manufacturer Part Number Product Name Description Taoglas FXUB63.07.0150C GSM / WCDMA / LTE PCB Antenna with cable and U.FL connector 698..960 MHz, 1575.42 MHz, 1710..2170 MHz, 2400..2690 MHz 96.0 x 21.0 mm Taoglas...

  • Page 40: Antenna Detection Interface (Ant_Det)

    SARA-N2 series - System Integration Manual 2.4.2 Antenna detection interface (ANT_DET) ☞ Antenna detection interface is not supported in the "02" version of the product. 2.4.2.1 Guidelines for ANT_DET circuit design Figure 19 Table 18 describe the recommended schematic and components for the antenna detection circuit to be provided on the application board for the diagnostic circuit that must be provided on the antenna assembly to achieve antenna detection functionality.
  • Page 41 SARA-N2 series - System Integration Manual  Additional high pass filter (C3 and L2 in Figure 19) is provided at the ANT pin as ESD immunity improvement  The ANT pin must be connected to the antenna connector by means of a transmission line with nominal characteristics impedance as close as possible to 50 .
  • Page 42 SARA-N2 series - System Integration Manual 2.4.2.2 Guidelines for ANT_DET layout design Figure 20 describes the recommended layout for the antenna detection circuit to be provided on the application board to achieve antenna detection functionality, implementing the recommended schematic described in the previous Figure 19 Table SARA module...

  • Page 43: Sim Interface

    SARA-N2 series - System Integration Manual 2.5 SIM interface 2.5.1.1 Guidelines for SIM circuit design Guidelines for SIM cards, SIM connectors and SIM chips selection The ISO/IEC 7816, the ETSI TS 102 221 and the ETSI TS 102 671 specifications define the physical, electrical and functional characteristics of Universal Integrated Circuit Cards (UICC) which contains the Subscriber Identification Module (SIM) integrated circuit that securely stores all the information needed to identify and authenticate subscribers over the cellular network.
  • Page 44 SARA-N2 series - System Integration Manual Guidelines for SIM card connection An application circuit for the connection to a removable SIM card placed in a SIM card holder is described in Figure Follow these guidelines connecting the module to a SIM connector: ...
  • Page 45 SARA-N2 series - System Integration Manual Guidelines for single SIM chip connection Figure 22 describes an application circuit for the connection to a solderable SIM chip (M2M UICC Form Factor). Follow these guidelines connecting the module to a solderable SIM chip: ...

  • Page 46: Serial Interfaces

    SARA-N2 series - System Integration Manual 2.6 Serial interfaces 2.6.1 Asynchronous serial interface (UART) Guidelines for UART circuit design without RING indication If a 3.3 V Application Processor (DTE) is used, the UART interface of SARA-N2 module can be directly connected with the UART interface of the DTE as shown in Figure ...
  • Page 47 SARA-N2 series - System Integration Manual 2.6.1.1 Guidelines for UART circuit design with RING indication If the application board requires a RING indication to get notifications when an URC or when new data is available, the CTS line can be used for such a functionality. In this case the circuit should be implemented as shown in Figure ...

  • Page 48: Secondary Asynchronous Serial Interface (Secondary Uart)

    SARA-N2 series - System Integration Manual 2.6.2 Secondary asynchronous serial interface (Secondary UART) 2.6.2.1 Guidelines for Secondary UART circuit design The Secondary UART interface is provided on the GPIO1 pin and can be used for diagnostic, to collect trace logs. A suitable application circuit can be the one illustrated in Figure 26, where direct external access is...

  • Page 49: Ddc (I 2 C) Interface

    SARA-N2 series - System Integration Manual 2.6.3 DDC (I C) interface ☞ DDC (I C) interface is not supported by the "02" version of the product. 2.7 General Purpose Input/Output (GPIO) A typical usage of SARA-N2 series modules’ GPIOs follows: ...

  • Page 50: Module Placement

    SARA-N2 series - System Integration Manual 2.9 Module placement Optimize placement for minimum length of RF line and closer path from DC source for VCC. Make sure that the module, RF and analog parts / circuits are clearly separated from any possible source of radiated energy, including digital circuits that can radiate some digital frequency harmonics, which can produce Electro-Magnetic Interference affecting module, RF and analog parts / circuits’...

  • Page 51: Module Footprint And Paste Mask

    SARA-N2 series - System Integration Manual 2.10 Module footprint and paste mask Figure 30 Table 24 describe the suggested footprint (i.e. copper mask) and paste mask layout for SARA modules: the proposed land pattern layout reflects the modules’ pins layout, while the proposed stencil apertures layout is slightly different (see the F’’, H’’, I’’, J’’, O’’...

  • Page 52: Sara-N211 Integration In Devices Intended For Use In Potentially Explosive Atmospheres

    SARA-N2 series - System Integration Manual 2.11 SARA-N211 integration in devices intended for use in potentially explosive atmospheres 2.11.1 General guidelines SARA-N211 modules are certified as components intended for use in potentially explosive atmospheres (see section and see the “Approvals” section of the SARA-N2 series Data Sheet for further details), with the following marking: ...
  • Page 53 SARA-N2 series - System Integration Manual ☞ The certification of the application device that integrates a SARA-N211 module and the compliance of the application device with all the applicable certification schemes, directives and standards required for use in potentially explosive atmospheres are the sole responsibility of the application device manufacturer.

  • Page 54: Guidelines For Vcc Supply Circuit Design

    SARA-N2 series - System Integration Manual 2.11.2 Guidelines for VCC supply circuit design The power supply ratings, average and pulse, must be considered in the design of the VCC supply circuit on the application device integrating SARA-N211 module, implementing proper circuits providing adequate maximum voltage and current to the VCC supply input of the modules, according to the specific potentially explosive gas atmosphere category subdivision where the apparatus is intended for use.

  • Page 55: Guidelines For Antenna Rf Interface Design

    SARA-N2 series - System Integration Manual Protection against polarity reversal Protection against polarity reversal shall be provided within intrinsically safe apparatus to prevent invalidation of the type of protection as a result of reversal of the polarity of supplies to that intrinsically safe apparatus or at connections between cells of a battery where this could occur.

  • Page 56: Schematic For Sara-N2 Series Module Integration

    SARA-N2 series - System Integration Manual 2.12 Schematic for SARA-N2 series module integration Figure 31 is an example of a schematic diagram where a SARA-N2 series module “02” product version is integrated into an application board, using all the available interfaces and functions of the module. SARA-N2 series External 15pF...

  • Page 57: Design-In Checklist

    SARA-N2 series - System Integration Manual 2.13 Design-in checklist 2.13.1 Schematic checklist The following are the most important points for a simple schematic check:  DC supply must provide a nominal voltage at VCC pin above the minimum operating range limit.

  • Page 58: Antenna Checklist

    SARA-N2 series - System Integration Manual 2.13.3 Antenna checklist  Antenna termination should provide 50  characteristic impedance with V.S.W.R at least less than 3:1 (recommended 2:1) on operating bands in deployment geographical area.  Follow the recommendations of the antenna producer for correct antenna installation and deployment (PCB layout and matching circuitry).

  • Page 59: Handling And Soldering

    SARA-N2 series - System Integration Manual Handling and soldering ☞ No natural rubbers, no hygroscopic materials or materials containing asbestos are employed. 3.1 Packaging, shipping, storage and moisture preconditioning For information pertaining to reels and tapes, Moisture Sensitivity levels (MSD), shipment and storage information, as well as drying for preconditioning see the SARA-N2 series Data Sheet the u-blox Package Information Guide [2].

  • Page 60: Soldering

    SARA-N2 series - System Integration Manual 3.3 Soldering 3.3.1 Soldering paste Use of "No Clean" soldering paste is strongly recommended, as it does not require cleaning after the soldering process has taken place. The paste listed in the example below meets these criteria. Soldering Paste: OM338 SAC405 / Nr.143714 (Cookson Electronics) Alloy specification:...

  • Page 61: Optical Inspection

    SARA-N2 series - System Integration Manual Cooling phase A controlled cooling avoids negative metallurgical effects (solder becomes more brittle) of the solder and possible mechanical tensions in the products. Controlled cooling helps to achieve bright solder fillets with a good shape and low contact angle. ...

  • Page 62: Repeated Reflow Soldering

    SARA-N2 series - System Integration Manual 3.3.5 Repeated reflow soldering Repeated reflow soldering processes and soldering the module upside down are not recommended. Boards with components on both sides may require two reflow cycles. In this case, the module should always be placed on the side of the board that is submitted into the last reflow cycle.

  • Page 63: Casting

    SARA-N2 series - System Integration Manual 3.3.10 Casting If casting is required, use viscose or another type of silicon pottant. The OEM is strongly advised to qualify such processes in combination with the SARA-N2 series modules before implementing this in the production.

  • Page 64: Approvals

    China Telecom network operator in China  AT&T network operator in United States  Table 27 lists the main approvals of SARA-N2 series modules. Certification Scheme SARA-N200 SARA-N201 SARA-N210 SARA-N211 SARA-N280 CE (European Conformity) • • • GCF (Global Certification Forum) •...

  • Page 65: European Conformance Ce Mark

    ⚠ The gain of the system antenna(s) used for the SARA-N200, SARA-N210 and SARA-N211 modules (i.e. the combined transmission line, connector, cable losses and radiating element gain) must not exceed the values stated in the Declaration of Conformity of the modules, for mobile and fixed or mobile operating configurations: ...

  • Page 66: Atex Conformance

    SARA-N2 series - System Integration Manual The conformity assessment procedure for SARA-N200 and SARA-N210 modules, referred to in Article 17 and detailed in Annex II of Directive 2014/53/EU, has been followed. Thus, the following marking is included in the product: The conformity assessment procedure for SARA-N211 modules, referred to in Article 17 and detailed in Annex II of Directive 2014/53/EU, has been followed.

  • Page 67: Chinese Conformance

    SARA-N2 series - System Integration Manual 4.4 Chinese conformance SARA-N200 and SARA-N201 modules have the applicable regulatory approval for China:  CMIIT ID: 2018CJ1113 4.5 Taiwanese conformance SARA-N200, SARA-N211 and SARA-N280 modules have the applicable regulatory approval for Taiwan (NCC) ...

  • Page 68: Product Testing

    SARA-N2 series - System Integration Manual Product testing 5.1 u-blox in-series production test u-blox focuses on high quality for its products. All units produced are fully tested. Defective units are analyzed in detail to improve the production quality. This is achieved with automatic test equipment, which delivers a detailed test report for each unit. The following measurements are done: ...

  • Page 69: Go/No Go" Tests For Integrated Devices

    SARA-N2 series - System Integration Manual Dedicated tests can be implemented to check the device. For example, AT commands can be used to perform functional tests on the digital interfaces (communication with the host controller, check the SIM interface, GPIOs, etc.) or to perform RF performance tests (see the following section 5.2.2 details).
  • Page 70 SARA-N2 series - System Integration Manual Figure 34 illustrates a typical test setup for such an RF functional test. Cellular Wideband antenna antenna Application SARA-N2 series Processor Spectrum Analyzer commands Power Meter Application Board Cellular Wideband antenna antenna Application SARA-N2 series Processor commands Signal...

  • Page 71: Appendix

    SARA-N2 series - System Integration Manual Appendix A Migration between SARA modules A.1 Overview The SARA-G3 2G modules, the SARA-U2 3G / 2G modules, the SARA-R4 LTE Cat M1/NB1 / 2G modules and the SARA-N2 LTE Cat NB1 modules have exactly the same u-blox SARA form factor (26.0 x 16.0 mm, 96-pin LGA), with compatible pin assignment as described in Figure 35, so that the...
  • Page 72 1850 1900 1950 2000 2050 2100 2150 2200 SARA-N201 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 SARA-N210 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 SARA-N211 1700 1750 1800 1850 1900 1950 2000...

  • Page 73: Pin-Out Comparison Between Sara-G3, Sara-U2, Sara-R4 And Sara-N2 Modules

    SARA-N2 series - System Integration Manual A.2 Pin-out comparison between SARA-G3, SARA-U2, SARA-R4 and SARA-N2 modules SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration Ground Ground Ground Ground V_BCKP RTC Supply I/O V_BCKP RTC Supply I/O...
  • Page 74 SARA-N2 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration UART CTS Output UART CTS Output UART CTS Output UART CTS Output Diverse level (V_INT vs VCC) V_INT level (1.8 V) V_INT level (1.8 V) V_INT level (1.8 V)
  • Page 75 SARA-N2 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration RSVD Reserved CODEC_CLK 13 or 26 MHz Output GPIO6 GPIO RSVD Reserved Clock / GPIO vs Reserved V_INT level (1.8 V) V_INT level (1.8 V) Default: Pin disabled...
  • Page 76 SARA-N2 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration TXD_AUX Aux UART Data In USB_D+ USB Data I/O (D+) USB_D+ USB Data I/O (D+) RSVD Reserved USB / AUX UART vs Reserved...
  • Page 77 SARA-N2 series - System Integration Manual SARA-G3 SARA-U2 SARA-R4 SARA-N2 Pin Name Description Pin Name Description Pin Name Description Pin Name Description Remarks for migration MIC_BIAS / Microphone Supply Out / SDIO_CM Analog Audio vs SDIO vs RSVD Reserved SDIO command RSVD Reserved RSVD...

  • Page 78: Schematic For Sara-G3 /-U2 /-R4 /-N2 Modules Integration

    SARA-N2 series - System Integration Manual A.3 Schematic for SARA-G3 /-U2 /-R4 /-N2 modules integration Figure 38 shows an example of schematic diagram where a SARA-G3, SARA-U2, SARA-R4 or SARA-N2 series module can be integrated into the same application board, using all the available interfaces and functions of the modules.

  • Page 79: B Glossary

    SARA-N2 series - System Integration Manual B Glossary Abbreviation Definition 3GPP 3rd Generation Partnership Project Application Processor AT Command Interpreter Software Subsystem, or attention Clear To Send Direct Current Data Carrier Detect Data Communication Equipment Display Data Channel interface Down-link (Reception) Discontinuous Reception Digital Signal Processing Data Set Ready...
  • Page 80 SARA-N2 series - System Integration Manual Abbreviation Definition Ring Indicator Radio Resource Control Real Time Clock Request To Send Surface Acoustic Wave Subscriber Identification Module To Be Defined Test-Point UART Universal Asynchronous Receiver-Transmitter User Datagram Protocol UICC Universal Integrated Circuit Card Up-link (Transmission) VSWR Voltage Standing Wave Ratio...

  • Page 81: Related Documents

    Updated SARA-N211-02X product status. Added ATEX and approvals info. Updated TXD info. Minor corrections and clarifications. Extended document applicability SARA-N200-02B-01, 27-Aug-2018 lpah SARA-N210-02B-01, SARA-N211-02X-01, SARA-N280-02B-01. SARA-N200-02B-01, SARA-N210-02B-01, SARA-N211-02X-01, 30-Nov-2018 lpah SARA-N280-02B-01 product status update. UBX-17005143 - R06 Related documents Page 81 of 82...

  • Page 82: Contact

    SARA-N2 series - System Integration Manual Contact For complete contact information, visit us at www.u-blox.com. u-blox Offices North, Central and South America Headquarters Asia, Australia, Pacific Europe, Middle East, Africa u-blox America, Inc. u-blox Singapore Pte. Ltd. u-blox AG Phone: +1 703 483 3180 Phone: +65 6734 3811...

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Sara-n2 seriesSara-n200 sara-n201Sara-n211Sara-n280

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