Sierra Wireless N7NHL8548 Manuel utilisateur

Marque: Sierra Wireless

Modèle: N7NHL8548

Taper: Manuel utilisateur

Ce manuel convient également à

4119996

1.3

April 10, 2017

AirPrime HL8548

Hardware Integration Guide

4119996 Rev 1.3 April 10, 2017 2

Hardware Integration Guide

Important Notice

Due to the nature of wireless communications, transmission and reception of data can never be

guaranteed. Data may be delayed, corrupted (i.e., have errors) or be totally lost. Although significant

delays or losses of data are rare when wireless devices such as the Sierra Wireless modem are used

in a normal manner with a well-constructed network, the Sierra Wireless modem should not be used

in situations where failure to transmit or receive data could result in damage of any kind to the user or

any other party, including but not limited to personal injury, death, or loss of property. Sierra Wireless

accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or

received using the Sierra Wireless modem, or for failure of the Sierra Wireless modem to transmit or

receive such data.

Safety and Hazards

Do not operate the Sierra Wireless modem in areas where cellular modems are not advised without

proper device certifications. These areas include environments where cellular radio can interfere such

as explosive atmospheres, medical equipment, or any other equipment which may be susceptible to

any form of radio interference. The Sierra Wireless modem can transmit signals that could interfere

with this equipment. Do not operate the Sierra Wireless modem in any aircraft, whether the aircraft is

on the ground or in flight. In aircraft, the Sierra Wireless modem MUST BE POWERED OFF. When

operating, the Sierra Wireless modem can transmit signals that could interfere with various onboard

systems.

Note: Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door

is open. Sierra Wireless modems may be used at this time.

The driver or operator of any vehicle should not operate the Sierra Wireless modem while in control of

a vehicle. Doing so will detract from the driver or operator’s control and operation of that vehicle. In

some states and provinces, operating such communications devices while in control of a vehicle is an

offence.

Limitations of Liability

This manual is provided “as is”. Sierra Wireless makes no warranties of any kind, either expressed or

implied, including any implied warranties of merchantability, fitness for a particular purpose, or

noninfringement. The recipient of the manual shall endorse all risks arising from its use.

The information in this manual is subject to change without notice and does not represent a

commitment on the part of Sierra Wireless. SIERRA WIRELESS AND ITS AFFILIATES

SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL DIRECT, INDIRECT, SPECIAL,

GENERAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES INCLUDING,

BUT NOT LIMITED TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED PROFITS OR

REVENUE ARISING OUT OF THE USE OR INABILITY TO USE ANY SIERRA WIRELESS

PRODUCT, EVEN IF SIERRA WIRELESS AND/OR ITS AFFILIATES HAS BEEN ADVISED OF THE

POSSIBILITY OF SUCH DAMAGES OR THEY ARE FORESEEABLE OR FOR CLAIMS BY ANY

THIRD PARTY.

Notwithstanding the foregoing, in no event shall Sierra Wireless and/or its affiliates aggregate liability

arising under or in connection with the Sierra Wireless product, regardless of the number of events,

occurrences, or claims giving rise to liability, be in excess of the price paid by the purchaser for the

Sierra Wireless product.

4119996 Rev 1.3 3

Hardware Integration Guide

Patents

This product may contain technology developed by or for Sierra Wireless Inc.

This product includes technology licensed from QUALCOMM

This product is manufactured or sold by Sierra Wireless Inc. or its affiliates under one or more patents

licensed from InterDigital Group and MMP Portfolio Licensing.

Trademarks

Sierra Wireless

, AirPrime

, AirLink

, AirVantage

, WISMO

, ALEOS

and the Sierra Wireless and

Open AT logos are registered trademarks of Sierra Wireless, Inc. or one of its subsidiaries.

Watcher

is a registered trademark of NETGEAR, Inc., used under license.

Windows

and Windows Vista

are registered trademarks of Microsoft Corporation.

Macintosh

and Mac OS X

are registered trademarks of Apple Inc., registered in the U.S. and other

countries.

QUALCOMM

is a registered trademark of QUALCOMM Incorporated. Used under license.

Other trademarks are the property of their respective owners.

Contact Information

Sales information and technical support,

including warranty and returns

Web: sierrawireless.com/company/contact-us/

Global toll-free number: 1-877-687-7795

6:00 am to 6:00 pm PST

Corporate and product information

Web: sierrawireless.com

April 10, 2017

4119996 Rev 1.3 4

Hardware Integration Guide

Document History

Version

Date

Updates

1.0

September 29, 2016

Creation

1.1

October 14, 2016

Updated to match with the data in the HL8548 PTS

1.2

October 24, 2016

Updated 5.2 IC Regulations

April 10, 2017

1.3

April 10, 2017

Updated antenna gain for FCC/IC

4119996 Rev 1.3 5

Contents

1. INTRODUCTION .................................................................................................. 8

2. POWER INTERFACE ........................................................................................... 9

2.1. Power Supply .................................................................................................................... 9

2.2. Power Off Sequence ......................................................................................................... 9

2.3. Sleep Mode Management ................................................................................................. 9

3. RF INTERFACE .................................................................................................. 10

3.1. Supported RF Bands ....................................................................................................... 10

3.2. RF Connection ................................................................................................................. 10

3.2.1. Choosing the Correct Antenna and Cabling ............................................................ 11

3.2.2. Designing Custom Antennas ................................................................................... 11

3.2.3. Determining the Antenna’s Location ........................................................................ 11

3.3. RF Performances ............................................................................................................ 11

4. ESD GUIDELINES .............................................................................................. 12

4.1. SIM Card ......................................................................................................................... 12

4.2. USB ................................................................................................................................. 13

5. LEGAL INFORMATION ..................................................................................... 14

5.1. FCC Regulations ............................................................................................................. 14

5.2. IC Regulations ................................................................................................................. 16

5.2.1. Radiation Exposure Statement ................................................................................ 16

6. REFERENCES ................................................................................................... 17

6.1. Reference Documents ..................................................................................................... 17

6.2. Terms and Abbreviations................................................................................................. 17

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4119996 Rev 1.3 6

List of Figures

Figure 1. EMC and ESD Components Close to the SIM ................................................................ 12

Figure 2. ESD Protection for USB .................................................................................................. 13

April 10, 2017

4119996 Rev 1.3 7

List of Tables

Table 1. Power Supply .................................................................................................................... 9

Table 2. Supported Bands ............................................................................................................. 10

Table 3. Conducted RX Sensitivity (dBm) ..................................................................................... 11

Table 4. Approved Antenna Types ................................................................................................ 16

April 10, 2017

4119996 Rev 1.3 8

1. Introduction

The AirPrime HL8548 belongs to the AirPrime MC Series product family and provides data

connectivity on wireless networks (as listed in Table 2 Supported Bands).

The HL8548 supports a large variety of interfaces such as USB 2.0, UART, GPIOs and SIM to provide

customers with the highest level of flexibility in implementing high-end solutions.

April 10, 2017

4119996 Rev 1.4 9

2. Power Interface

2.1. Power Supply

The AirPrime HL8548 is supplied through the VBAT signal.

Table 1. Power Supply

Pin Numbers

Supply

Minimum

Typical

Maximum

2, 24, 39, 41, 52

VBAT voltage (V)

3.2*

3.7

4.5

* This value has to be guaranteed during the burst

Note: Load capacitance for VBAT is around 30µF ± 20% embedded inside the accessory board.

2.2. Power Off Sequence

To power the HL8548 off:

1. Put the accessory board in low power mode (LPM) by sending either AT+KSLEEP=1 or

AT+CPWROFF=1.

2. Wait for at least 10 seconds.

3. Remove the power supply to VBAT.

2.3. Sleep Mode Management

Use AT+KSLEEP=1 to allow the accessory board to automatically enter sleep mode while the USB

interface is in use.

When AT+KSLEEP=2, the accessory board will never enter sleep mode.

April 10, 2017

4119996 Rev 1.4 10

3. RF Interface

The RF interface of the HL8548 allows transmission of RF signals. This interface has a 50Ω nominal

impedance.

3.1. Supported RF Bands

The AirPrime HL8548 supports the RF bands listed in the table below.

Table 2. Supported Bands

RF Band

Transmit band (Tx)

Receive band (Rx)

Maximum Output Power

UMTS B1

1922 to1978 MHz

2112 to 2168 MHz

23 dBm (+/- 2dBm) Class 3bis

UMTS B2

1852 to 1908 MHz

1932 to 1988 MHz

23 dBm (+/- 2dBm) Class 3bis

UMTS B5

826 to 847 MHz

871 to 892 MHz

23 dBm (+/- 2dBm) Class 3bis

UMTS B6

832 to 838 MHz

877 to 883 MHz

23 dBm (+/- 2dBm) Class 3bis

UMTS B8

882 to 913 MHz

927 to 958 MHz

23 dBm (+/- 2dBm) Class 3bis

UMTS B19

832.4 to 842.6 MHz

877.4 to 887.6 MHz

23 dBm (+/- 2dBm) Class 3bis

GSM 850

824 to 849 MHz

869 to 894 MHz

2 Watts GSM, GPRS and EDGE

E-GSM 900

880 to 915 MHz

925 to 960 MHz

2 Watts GSM, GPRS and EDGE

DCS 1800

1710 to 1785 MHz

1805 to 1880 MHz

1 Watt GSM, GPRS and EDGE

PCS 1900

1850 to 1910 MHz

1930 to 1990 MHz

1 Watt GSM, GPRS and EDGE

3.2. RF Connection

When attaching antennas to the HL8548:

 Use Hirose U.FL connectors (3 mm x 3 mm, low profile; model U.FL #CL331-0471-0-10) to

attach antennas to connection points on the Accessory Board.

Note: To disconnect the antenna, make sure you use the Hirose U.FL connector removal tool (P/N UFL-

LP-N-2(01)) to prevent damage to the Accessory Board or coaxial cable assembly.

 Match coaxial connections between the Accessory Board and the antenna to 50Ω.

 Minimize RF cable losses to the antenna; the recommended maximum cable loss for antenna

cabling is 0.5 dB.

 To ensure best thermal performance, mounting holes must be used to attach (ground) the

device to the main PCB ground or a metal chassis.

Note: If the antenna connection is shorted or open, the HL8548 will not sustain permanent damage.

April 10, 2017

4119996 Rev 1.3 11

Hardware Integration Guide

3.2.1. Choosing the Correct Antenna and Cabling

When matching antennas and cabling:

 The antenna (and associated circuitry) should have a nominal impedance of 50Ω with a

recommended return loss of better than 10 dB across each frequency band of operation.

 The system gain value affects both radiated power and regulatory (FCC, IC, etc.) test results.

3.2.2. Designing Custom Antennas

Note that in designing custom antennas, a skilled RF engineer should do the development to ensure

that the RF performance is maintained.

3.2.3. Determining the Antenna’s Location

When deciding where to put the antennas:

 Antenna location may affect RF performance. Although the Accessory Board is shielded to

prevent interference in most applications, the placement of the antenna is still very important -

if the host device is insufficiently shielded, high levels of broadband noise or spurious

interferences can degrade the HL8548’s performance.

 Connecting cables between the Accessory Board and the antenna must have 50Ω

impedance. If the impedance of the Accessory Board is mismatched, RF performance is

reduced significantly.

 Antenna cables should be routed, if possible, away from noise sources (switching power

supplies, LCD assemblies, etc.). If the cables are near the noise sources, the noise may be

coupled into the RF cable and into the antenna.

3.3. RF Performances

RF performances are compliant with the ETSI recommendation GSM 05.05.

Note: Values in the table below are preliminary and subject to change.

Table 3. Conducted RX Sensitivity (dBm)

Frequency Band

Typical Sensitivity (dBm)

GSM850/EGSM

-109

DCS/PCS

-108

UMTS B1

-110

UMTS B2

-110

UMTS B5/6

-110

UMTS B8

-110

April 10, 2017

4119996 Rev 1.3 12

4. ESD Guidelines

4.1. SIM Card

Decoupling capacitors must be added according to the drawings below as close as possible to the

SIM card connectors on UIM1_CLK, UIM1_RST, UIM1_VCC and UIM1_DATA signals to avoid EMC

issues and to comply with the requirements of ETSI and 3GPP standards covering the SIM electrical

interface.

A typical schematic including SIM detection is provided below.

Figure 1. EMC and ESD Components Close to the SIM

April 10, 2017

4119996 Rev 1.3 13

Hardware Integration Guide ESD Guidelines

4.2. USB

When the USB interface is externally accessible, it is required to have ESD protection on the USB_D+

and USB_D- signals.

Figure 2. ESD Protection for USB

Sierra Wireless recommends using a 90Ω DLP0NSN900HL2L EMC filter and an RCLAMP0503N or

ESD5V3U2U-03LRH ESD diode.

April 10, 2017

4119996 Rev 1.3 14

5. Legal Information

5.1. FCC Regulations

The HL8548 has been granted modular approval for mobile applications. Integrators may use the

HL8548 in their final products without additional FCC certification if they meet the following conditions.

Otherwise, additional FCC approvals must be obtained.

1. At least 20 cm separation distance between the antenna and the user’s body must be

maintained at all times.

2. To comply with FCC regulations limiting both maximum RF output power and human

exposure to RF radiation, the maximum antenna gain including cable loss in a mobile-only

exposure condition must not exceed:

 3.0 dBi in the cellular band

 5.0 dBi in the PCS band

3. The HL8548 may transmit simultaneously with other collocated radio transmitters within a

host device, provided the following conditions are met:

 Each collocated radio transmitter has been certified by FCC for mobile application.

 At least 20 cm separation distance between the antennas of the collocated transmitters

and the user’s body must be maintained at all times.

 The output power and antenna gain must not exceed the limits and configurations

stipulated in the following table.

Device

Technology

Frequency

(MHz)

Maximum Antenna Gain (dBi)

EIRP Limits

(dBm)

Standalone

Collocated

HL8548

GPRS/EDGE 850

824-849

GPRS/EDGE 1900

1850-1910

UMTS 850

824-849

UMTS 1900

1850-1910

Collocated

transmitters

WLAN

2400-2500

5150-580

WiMAX

2300-2400

2500-2700

3300-3800

2400-2500

April 10, 2017

4119996 Rev 1.3 15

Hardware Integration Guide Legal Information

4. The RF signal must be routed on the application board using tracks with a 50Ω characteristic

impedance. Basically, the characteristic impedance depends on the dielectric, the track width

and the ground plane spacing. In order to respect this constraint, Sierra Wireless

recommends using MicroStrip or StripLine structure and computing the Tracks width with a

simulation tool (like AppCad shown in the figure below and that is available free of charge at

http://www.agilent.com).

If a multi-layered PCB is used, the RF path on the board must not cross any signal (digital,

analog or supply).

5. A label must be affixed to the outside of the end product into which the HL8548 is

incorporated, with a statement similar to the following:

This device contains FCC ID: N7NHL8548

6. A user manual with the end product must clearly indicate the operating requirements and

conditions that must be observed to ensure compliance with current FCC RF exposure

guidelines.

The end product with an embedded HL8548 may also need to pass the FCC Part 15 unintentional

emission testing requirements and be properly authorized per FCC Part 15.

Note: If this accessory board is intended for use in a portable device, you are responsible for separate

approval to satisfy the SAR requirements of FCC Part 2.1093.

April 10, 2017

4119996 Rev 1.3 16

Hardware Integration Guide Legal Information

5.2. IC Regulations

This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to the

following two conditions:

1. This device may not cause interference; and

2. This device must accept any interference, including interference that may cause undesired

operation of the device.

Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio

exempts de licence. L’exploitation est autorisée aux deux conditions suivantes:

1. l’appareil ne doit pas produire de brouillage;

2. l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le

brouillage est susceptible d’en compromettre le fonctionnement.

5.2.1. Radiation Exposure Statement

This equipment complies with Canada radiation exposure limits set forth for an uncontrolled

environment.

This equipment should be installed and operated with minimum distance 20cm between the radiator

and your body.

Cet équipement est conforme Canada limites d'exposition aux radiations dans un environnement non

contrôlé.

Cet équipement doit être installé et utilisé à distance minimum de 20cm entre le radiateur et votre

corps.

This radio transmitter (IC: 2417C-HL8548) has been approved by Industry Canada to operate with the

antenna types listed below with the maximum permissible gain indicated. Antenna types not included

in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited

for use with this device.

Le présent émetteur radio (IC: 2417C-HL8548) a été approuvé par Industrie Canada pour fonctionner

avec les types d'antenne énumérés ci dessous et ayant un gain admissible maximal. Les types

d'antenne non inclus dans cette liste, et dont le gain est supérieur au gain maximal indiqué, sont

strictement interdits pour l'exploitation de l'émetteur.

Table 4. Approved Antenna Types

Type

Gain

Connector

Dipole

2 dBi

R-SMA

April 10, 2017

4119996 Rev 1.3 17

6. References

6.1. Reference Documents

[1] AirPrime HL8548 and HL8548-G Product Technical Specification

Reference Number: 4114663

6.2. Terms and Abbreviations

Abbreviation

Definition

ADC

Analog to Digital Converter

AGC

Automatic Gain Control

Attention (prefix for modem commands)

CDMA

Code Division Multiple Access

CF3

Common Flexible Form Factor

CLK

Clock

CODEC

Coder Decoder

CPU

Central Processing Unit

DAC

Digital to Analog Converter

DTR

Data Terminal Ready

EGNOS

European Geostationary Navigation Overlay Service

EMC

Electromagnetic Compatibility

EMI

Electromagnetic Interference

Enable

ESD

Electrostatic Discharges

ETSI

European Telecommunications Standards Institute

FDMA

Frequency-division multiple access

GAGAN

GPS aided geo augmented navigation

GLONASS

Global Navigation Satellite System

GND

Ground

GNSS

Global Navigation Satellite System

GPIO

General Purpose Input Output

GPRS

General Packet Radio Service

GSM

Global System for Mobile communications

Hi Z

High impedance (Z)

Integrated Circuit

IMEI

International Mobile Equipment Identification

I/O

Input / Output

LED

Light Emitting Diode

LNA

Low Noise Amplifier

MAX

Maximum

April 10, 2017

4119996 Rev 1.3 18

Hardware Integration Guide References

Abbreviation

Definition

MIN

Minimum

MSAS

Multi-functional Satellite Augmentation System

N/A

Not Applicable

Power Amplifier

Personal Computer

PCB

Printed Circuit Board

PCL

Power Control Level

PLL

Phase Lock Loop

PWM

Pulse Width Modulation

QZSS

Quasi-Zenith Satellite System

Radio Frequency

RFI

Radio Frequency Interference

RMS

Root Mean Square

RST

Reset

RTC

Real Time Clock

Receive

SCL

Serial Clock

SDA

Serial Data

SIM

Subscriber Identification Module

SMD

Surface Mounted Device/Design

SPI

Serial Peripheral Interface

Software

PSRAM

Pseudo Static RAM

TBC

To Be Confirmed

TBD

To Be Defined

Test Point

Transmit

TYP

Typical

UART

Universal Asynchronous Receiver-Transmitter

UICC

Universal Integrated Circuit Card

USB

Universal Serial Bus

UIM

User Identity Module

VBATT

Main Supply Voltage from Battery or DC adapter

VSWR

Voltage Standing Wave Ratio

WAAS

Wide Area Augmentation System

April 10, 2017

Sierra Wireless N7NHL8548 Manuel utilisateur

Marque: Sierra Wireless

Modèle: N7NHL8548

Taper: Manuel utilisateur

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