Sierra Wireless EM7355 Radio Module User Manual AirPrime EM7355 Hardware Integration Guide

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Document ID	1857457
Application ID	lAsYIN89Ct0n35UocerqSA==
Document Description	4112880 AirPrime EM7355 Hardware Integration Guide v1 - Review A
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	21.09kB (263619 bits)
Date Submitted	2012-12-12 00:00:00
Date Available	2013-06-18 00:00:00
Creation Date	2012-12-07 02:17:50
Producing Software	Acrobat Distiller 10.1.4 (Windows)
Document Lastmod	2012-12-07 03:31:31
Document Title	AirPrime EM7355 Hardware Integration Guide
Document Creator	FrameMaker 9.0

AirPrime EM7355
Hardware Integration Guide
4112880
Rev 1
Distribution under NDA only
Contents subject to change
Preface
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 blasting is in progress,
where explosive atmospheres may be present, near medical equipment, near life
support equipment, or any equipment which may be susceptible to any form of
radio interference. In such areas, the Sierra Wireless modem MUST BE
POWERED OFF. 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.
Limitation of
Liability
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.
Rev 1 Dec.12
Proprietary and Confidential - Contents subject to change
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.
Copyright
©2012 Sierra Wireless. All rights reserved.
Trademarks
AirCard® is a registered trademark of Sierra Wireless. Sierra Wireless™,
AirPrime™, Watcher™, and the Sierra Wireless logo are trademarks of Sierra
Wireless.
Windows® is a registered trademark of Microsoft Corporation.
QUALCOMM® is a registered trademark of QUALCOMM Incorporated. Used
under license.
Other trademarks are the property of their respective owners.
Contact
Information
Sales Desk:
Phone:
1-604-232-1488
Hours:
8:00 AM to 5:00 PM Pacific Time
E-mail:
sales@sierrawireless.com
Post:
Sierra Wireless
13811 Wireless Way
Richmond, BC
Canada
V6V 3A4
Technical support:
support@sierrawireless.com
RMA support:
repairs@sierrawireless.com
Fax:
1-604-231-1109
Web:
www.sierrawireless.com
Consult our website for up-to-date product descriptions, documentation,
application notes, firmware upgrades, troubleshooting tips, and press releases:
www.sierrawireless.com
Revision
History
Revision
number
Release date
Changes
December 2012
FCC / IC certification
Proprietary and Confidential - Contents subject to change
4112880
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Required connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Module power states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
RF Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
RF connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Antenna and cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Ground connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Interference and sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Interference from other wireless devices . . . . . . . . . . . . . . . . . . . . . . . . . 14
Host-generated RF interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Device-generated RF interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Methods to mitigate decreased Rx performance . . . . . . . . . . . . . . . . . . . 15
Radiated Spurious Emissions (RSE) . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Radiated sensitivity measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Regulatory Compliance and Industry Certifications . . . . . . . . . . . . . . . . . . . 17
Important notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety and hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Important compliance information for North American users . . . . . . . . . . . . 18
Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Rev 1 Dec.12
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Hardware Integration Guide
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4112880
1
1: Introduction
The Sierra Wireless EM7355 Embedded Module is an M.2 modem
that provides LTE, DC-HSPA+, HSPA+, HSDPA, HSUPA, WCDMA,
GSM, GPRS, EDGE, CDMA, and GNSS connectivity for notebook,
ultrabook, and tablet computers over several radio frequency bands.
The device also supports 2G / 3G roaming.
Accessories
A hardware development kit is available for AirPrime M.2 modules.
The kit contains hardware components for evaluating and developing
with the module, including:
•
Development board
•
Cables
•
Antennas
•
Other accessories
For over-the-air LTE testing, ensure that suitable antennas are used.
Required connectors
Table 1-1 describes the connectors used to integrate the EM7355
Embedded Module into your host device.
Table 1-1: Required host-module connectors
Connector type
RF cables
EDGE (67 pin)
SIM
Rev 1 Dec.12
Description
•
Mate with M.2-spec connectors
•
Three connector jacks
•
Slot B compatible — Per the M.2 standard (PCI Express NGFF
(M.2) Electromechanical Specification Revision 0.7), a generic
75 pin position EDGE connector on the motherboard uses a
mechanical key to mate with the 67 pin notched module
connector.
•
Manufacturers include LOTES (part #APCI0018-P001A01),
Kyocera, JAE, Tyco, and Longwell.
•
Industry-standard connector.
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4112880
2
2: Power
Power supply
The host provides power to the EM7355 through multiple power and
ground pins. The host must provide safe and continuous power (via
battery or a regulated power supply) at all times; the module does not
have an independent power supply, or protection circuits to guard
against electrical issues.
For detailed pinout and voltage / current requirements of this module,
see the AirPrime EM7355 Product Technical Specification &
Customer Design Guidelines.
Module power states
The module has five power states, as described in Table 2-1.
Module is active
•
Module is capable of placing / receiving calls, or establishing data connections on the
wireless network
•
Current consumption is affected by several factors, including:
•
•








Default state. Occurs when VCC is first applied, Full_Card_Power_Off# is
deasserted (pulled high), and W_DISABLE#1 is deasserted
•
•
•
•
Low power
(‘Airplane
mode’)
RF enabled
•
•
USB interface active
Normal
(Default
state)
Details
Module is powered
State
Host is powered
Table 2-1: Module power states
Radio band being used
Transmit power
Receive gain settings
Data rate
Module is active
Module enters this state:
• Under host interface control:
· Host issues AT+CFUN=0 ([1] AT Command Set for User Equipment (UE)
·
(Release 6) (Doc# 3GPP TS 27.007))), or
Host asserts W_DISABLE#1, after AT!PCOFFEN=0 has been issued.
• Automatically, when critical temperature or voltage trigger limits have been
reached))
Rev 1 Dec.12
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Hardware Integration Guide
Disconnected
10
Normal state of module between calls or data connections
•
Host keeps module powered off by asserting Full_Card_Power_Off# (signal pulled
low or left floating)
•
•
Module draws minimal current
•
Host power source is disconnected from the module and all voltages associated with
the module are at 0 V.
RF enabled
Off
•
•
USB interface active
Sleep
Details
Module is powered
State
Host is powered
Table 2-1: Module power states (Continued)












Module cycles between wake (polling the network) and sleep, at network providerdetermined interval.
See Full_Card_Power_Off# and RESET# on page 41 for more information.
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4112880
3
3: RF Specifications
The EM7355 operates on the frequency bands listed below.
Table 3-1: LTE frequency band support
Band
Frequencies
Band 2
Tx: 1850–1910 MHz
Rx: 1930–1990 MHz
Band 4 (AWS)
Tx: 1710–1755 MHz
Rx: 2110–2155 MHz
Band 5
Tx: 824–849 MHz
Rx: 869–894 MHz
Band 13
Tx: 777–787 MHz
Rx: 746–756 MHz
Band 17
Tx: 704–716 MHz
Rx: 734–746 MHz
Band 25
Tx: 1850–1915 MHz
Rx: 1930–1995 MHz
Table 3-2: WCDMA frequency band support1
Band
Frequencies
Band 1
WCDMA 2100
Tx: 1920–1980 MHz
Rx: 2110–2170 MHz
Band 2
WCDMA 1900
Tx: 1850–1910 MHz
Rx: 1930–1990 MHz
Band 4
AWS 1700/2100
Tx: 1710–1755 MHz
Rx: 2110–2155 MHz
Band 5
WCDMA 850
Tx: 824–849 MHz
Rx: 869–894 MHz
Band 8
WCDMA 900
Tx: 880–915 MHz
Rx: 925–960 MHz
1. WCDMA channel spacing is 5 MHz, but this can be adjusted to
optimize performance in a particular deployment scenario.
Table 3-3: GSM frequency band support
Rev 1 Dec.12
Band
Frequencies
GSM 850
Tx: 824–849 MHz
Rx: 869–894 MHz
EGSM 900
Tx: 880–915 MHz
Rx: 925–960 MHz
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Hardware Integration Guide
Table 3-3: GSM frequency band support (Continued)
Band
Frequencies
GSM 1800
Tx: 1710–1785 MHz
Rx: 1805–1880 MHz
GSM 1900
Tx: 1850–1910 MHz
Rx: 1930–1990 MHz
Table 3-4: CDMA frequency band support
Band
Frequencies
Band Class 0
(Cellular 800 MHz)
Tx: 824–849 MHz
Rx: 869–894 MHz
Band Class 1
(PCS)
Tx: 1850–1910 MHz
Rx: 1930–1990 MHz
Band Class 10
Tx: 816–824 MHz
(Secondary 800 MHz)1 Rx: 861–869 MHz
1. BC10 subclasses 2 and 3 (system designator C and D) are supported
Table 3-5: GNSS frequency band support
Band
Frequencies
Narrow-band GPS
Rx: 1575.42 MHz
Wide-band GPS + GLONASS
Rx: 1565–1606 MHz
RF connections
When attaching antennas to the module:
•
Use any of the following (or compatible) 2x2 mm 
RF receptacle connectors to attach antennas to the module’s connection
points
•
Match coaxial connections between the module and the antenna to 50 .
•
Minimize RF cable losses to the antenna; the recommended maximum cable
loss for antenna cabling is 0.5 dB.
•
To ensure best thermal performance, if possible use the mounting hole to
attach (ground) the device to a metal chassis.
Note: If the antenna connection is shorted or open, the modem will not sustain permanent
damage.
Shielding
The module is fully shielded to protect against EMI and must not be removed.
12
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4112880
RF Specifications
Antenna and cabling
When selecting the antenna and cable, it is critical to RF performance to match
antenna gain and cable loss.
Choosing the correct antenna and cabling
When matching antennas and cabling:
•
The antenna (and associated circuitry) should have a nominal impedance of
50  with a 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,
CE, etc.) test results.
Designing custom antennas
Consider the following points when designing custom antennas:
•
A skilled RF engineer should do the development to ensure that the RF
performance is maintained.
•
If both UMTS and CDMA modules will be installed in the same platform, you
may want to develop separate antennas for maximum performance.
Determining the antenna’s location
When deciding where to put the antennas:
•
Antenna location may affect RF performance. Although the module 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 or spurious noise can degrade the module’s performance.
•
Connecting cables between the module and the antenna must have 50 
impedance. If the impedance of the module 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.
Disabling the diversity antenna
•
For LTE / UMTS bands, use the AT command !RXDEN=0 to disable receive
diversity or !RXDEN=1 to enable receive diversity.
•
For CDMA bands, use the AT command !DIVERSITY to enable or disable
receive diversity.
Note: A diversity antenna is used to improve connection quality and reliability through
redundancy. Because two antennas may experience difference interference effects (signal
distortion, delay, etc.), when one antenna receives a degraded signal, the other may not be
similarly affected.
Rev 1 Dec.12
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13
Hardware Integration Guide
Ground connection
When connecting the module to system ground:
•
Prevent noise leakage by establishing a very good ground connection to the
module through the host connector.
•
Connect to system ground using the module’s mounting hole.
•
Minimize ground noise leakage into the RF.
Depending on the host board design, noise could potentially be coupled to
the module from the host board. This is mainly an issue for host designs that
have signals traveling along the length of the module, or circuitry operating at
both ends of the module interconnects.
Interference and sensitivity
Several interference sources can affect the module’s RF performance
(RF desense). Common sources include power supply noise and devicegenerated RF.
RF desense can be addressed through a combination of mitigation techniques
(Methods to mitigate decreased Rx performance on page 15) and radiated
sensitivity measurement (Radiated sensitivity measurement on page 16).
Note: The EM7355 is based on ZIF (Zero Intermediate Frequency) technologies. When
performing EMC (Electromagnetic Compatibility) tests, there are no IF (Intermediate
Frequency) components from the module to consider.
Interference from other wireless devices
Wireless devices operating inside the host device can cause interference that
affects the module.
To determine the most suitable locations for antennas on your host device,
evaluate each wireless device’s radio system, considering the following:
•
Any harmonics, sub-harmonics, or cross-products of signals generated by
wireless devices that fall in the module’s Rx range may cause spurious
response, resulting in decreased Rx performance.
•
The Tx power and corresponding broadband noise of other wireless devices
may overload or increase the noise floor of the module’s receiver, resulting in
Rx desense.
The severity of this interference depends on the closeness of the other antennas
to the module’s antenna. To determine suitable locations for each wireless
device’s antenna, thoroughly evaluate your host device’s design.
Host-generated RF interference
All electronic computing devices generate RF interference that can negatively
affect the receive sensitivity of the module.
14
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4112880
RF Specifications
Proximity of host electronics to the antenna in wireless devices can contribute to
decreased Rx performance. Components that are most likely to cause this
include:
•
Microprocessor and memory
•
Display panel and display drivers
•
Switching-mode power supplies
Device-generated RF interference
The module can cause interference with other devices. Wireless devices such as
AirPrime embedded modules transmit in bursts (pulse transients) for set durations
(RF burst frequencies). Hearing aids and speakers convert these burst
frequencies into audible frequencies, resulting in audible noise.
Methods to mitigate decreased Rx performance
It is important to investigate sources of localized interference early in the design
cycle. To reduce the effect of device-generated RF on Rx performance:
•
Put the antenna as far as possible from sources of interference. The
drawback is that the module may be less convenient to use.
•
Shield the host device. The module itself is well shielded to avoid external
interference. However, the antenna cannot be shielded for obvious reasons.
In most instances, it is necessary to employ shielding on the components of
the host device (such as the main processor and parallel bus) that have the
highest RF emissions.
•
Filter out unwanted high-order harmonic energy by using discrete filtering on
low frequency lines.
•
Form shielding layers around high-speed clock traces by using multi-layer
PCBs.
•
Route antenna cables away from noise sources.
Radiated Spurious Emissions (RSE)
When designing an antenna for use with AirPrime embedded modules, the host
device with an AirPrime embedded module must satisfy the radiated spurious
emission (RSE) test cases described in:
•
(CDMA) Refer to CDMA standards for receive-only mode, and local
regulatory bodies for transmit mode (transmitter is operating).
•
CE/ETSI EN 301 908 (WCDMA), test numbers 5.3.1 (‘Radiated Emissions
(UE)’)
•
CE/ETSI EN 301 511 (GSM), test 5.2.16 (‘Radiated Spurious Emissions - MS
allocated a channel’). This test uses the procedure and requirement outlined
in 3GPP 51.010 (GSM) section 12.2.1 of the same test name.
Note that antenna impedance affects radiated emissions, which must be
compared against the conducted 50-ohm emissions baseline. (AirPrime
embedded modules meet the 50-ohm conducted emissions requirement.)
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15
Hardware Integration Guide
Note: GSM spurious emissions are most likely to have RSE issues, but in general, RSE
requirements must be met on all models with user-designed antennas.
Radiated sensitivity measurement
A wireless host device contains many noise sources that contribute to a reduction
in Rx performance.
To determine the extent of any receiver performance desensitization due to selfgenerated noise in the host device, over-the-air (OTA) or radiated testing is
required. This testing can be performed by Sierra Wireless or you can use your
own OTA test chamber for in-house testing.
16
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4
4: Regulatory Compliance and Industry
Certifications
This module is designed to meet, and upon commercial release, will
meet the requirements of the following regulatory bodies and
regulations, where applicable:
•
Federal Communications Commission (FCC) of the United States
•
The Certification and Engineering Bureau of Industry Canada
(IC)
•
The National Communications Commission (NCC) of Taiwan,
Republic of China
Upon commercial release, the following industry certifications will
have been obtained, where applicable:
•
GCF-CC (For Verizon 2G / 3G approval)
•
PTCRB
•
CDG2
Additional certifications may be obtained upon customer request —
contact your Sierra Wireless account representative for details.
Additional testing and certification may be required for the end
product with an embedded EM7355 modem and are the
responsibility of the OEM. Sierra Wireless offers professional
services-based assistance to OEMs with the testing and certification
process, if required.
Important notice
Because of 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 wellconstructed 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
and its affiliates accept 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 your EM7355 modem:
•
Rev 1 Dec.12
In areas where blasting is in progress
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17
Hardware Integration Guide
•
Where explosive atmospheres may be present including refuelling points, fuel
depots, and chemical plants
•
Near medical equipment, life support equipment, or any equipment which
may be susceptible to any form of radio interference. In such areas, the
EM7355 modem MUST BE POWERED OFF. Otherwise, the EM7355 modem
can transmit signals that could interfere with this equipment.
In an aircraft, the EM7355 modem MUST BE POWERED OFF. Otherwise, the
EM7355 modem can transmit signals that could interfere with various onboard
systems and may be dangerous to the operation of the aircraft or disrupt the
cellular network. Use of a cellular phone in an aircraft is illegal in some
jurisdictions. Failure to observe this instruction may lead to suspension or denial
of cellular telephone services to the offender, or legal action or both.
Some airlines may permit the use of cellular phones while the aircraft is on the
ground and the door is open. The EM7355 modem may be used normally at this
time.
Important compliance information for
North American users
Note: Details are preliminary and subject to change.
The EM7355 modem has been granted modular approval for mobile applications.
Integrators may use the EM7355 modem in their final products without additional
FCC / IC (Industry Canada) certification if they meet the following conditions.
Otherwise, additional FCC / IC 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 / IC 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:
· 6.5 dBi in Cellular band
· 3.0 dBi in PCS band
· 3.0 dBi in LTE Band 2
· 6.0 dBi in LTE Band 4
· 6.5 dBi in LTE Band 5
· 9.0 dBi in LTE Band 13 (Note: LTE Band 13 is not permitted in Canada.)
· 9.0 dBi in LTE Band 17 (Note: LTE Band 17 is not permitted in Canada.)
· 3.0 dBi in LTE Band 25
3. The EM7355 modem may transmit simultaneously with other collocated radio
transmitters within a host device, provided the following conditions are met:
· Each collocated radio transmitter has been certfied by FCC / IC 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.
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Regulatory Compliance and Industry Certifications
· The output power and antenna gain must not exceed the limits and configurations stipulated in the following table.
Device
EM7355
Embedded
Module
Technology
LTE
UMTS
GSM
CDMA
Collocated
transmitters1
WLAN
WiMAX
BT
Band
Frequency
(MHz)
Maximum
conducted power
(dBm)
Maximum
antenna gain
(dBi)
1850–1910
24
1710–1755
24
824–849
24
13
777–787
24
17
704–716
24
25
1850–1915
24
1850–1910
24
1710–1755
24
824–849
24
850
824–849
33
1900
1850–1910
30
BC0
824–849
25
BC1
1850–1910
25
BC10
816–823.975
25
2400–2500
29
5.0
5150–5850
29
5.0
2300–2400
29
5.0
2500–2700
29
5.0
3300–3800
29
5.0
2400–2500
15
5.0
1. Valid collocated transmitter combinations: WLAN+BT; WiMAX+BT.
(WLAN+WiMAX+BT is not permitted.)
4. A label must be affixed to the outside of the end product into which the
EM7355 modem is incorporated, with a statement similar to the following:
· This device contains FCC ID: N7NEM7355
Contains transmitter module IC: 2417C-EM7355 where 2417C-EM7355
is the module’s certification number.
5. 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 / IC RF exposure guidelines.
Rev 1 Dec.12
Proprietary and Confidential - Contents subject to change
19
Hardware Integration Guide
The end product with an embedded EM7355 modem may also need to pass the
FCC Part 15 unintentional emission testing requirements and be properly
authorized per FCC Part 15.
Note: If this module is intended for use in a portable device, you are responsible
for separate approval to satisfy the SAR requirements of FCC Part 2.1093 and IC
RSS-102.
20
Proprietary and Confidential - Contents subject to change
4112880
5: Acronyms
Table 5-1: Acronyms and definitions
Acronym or term
Rev 1 Dec.12
Definition
1xEV-DO
Single Carrier (1X) EVolution – Data Only. A high-speed standard for cellular
packet data communications.
Supports Internet connections with data rates up to 3.1 Mbps (downlink from the
network) and 1.8 Mbps (uplink to the network). Average data rates are roughly: for
Rev. A: 600 1300 kbps (downlink from the network) and 300 400 kbps (uplink to
the network); for Rev. 0: 400 700 kbps (downlink from the network) and 40 80
kbps (uplink to the network). Actual speed depends on the network conditions.
Compare to 1X.
1X
Single Carrier (1X) Radio Transmission Technology. A high-speed standard for
cellular packet data communications.
Supports Internet connections with data rates up to 153 kbps (simultaneously in
each direction—downlink and uplink). Actual speed depends on the network
conditions. Compare to 1xEV-DO.
3GPP
3rd Generation Partnership Project
8PSK
Octagonal Phase Shift Keying
AGC
Automatic Gain Control
A-GPS
Assisted GPS
A-GNSS
Assisted GNSS
API
Application Programming Interface
BER
Bit Error Rate — A measure of receive sensitivity
BLER
Block Error Rate
bluetooth
Wireless protocol for data exchange over short distances
CAIT
CDMA Air Interface Tool
CDG
CDMA Development Group—a consortium of companies that develop and
promote the products and services for CDMA wireless systems.
CDMA
Code Division Multiple Access.
A wideband spread spectrum technique used in digital cellular, personal
communications services, and other wireless networks. Wide channels (1.25
MHz) are obtained through spread spectrum transmissions, thus allowing many
active users to share the same channel. Each user is assigned a unique digital
code, which differentiates the individual conversations on the same channel.
CQI
Channel Quality Indication
COM
Communication port
CS
Circuit-switched
CW
Continuous waveform
Proprietary and Confidential - Contents subject to change21
Hardware Integration Guide
Table 5-1: Acronyms and definitions (Continued)
Acronym or term
Definition
Decibel = 10 x log10 (P1 / P2)
P1 is calculated power; P2 is reference power
dB
Decibel = 20 x log10 (V1 / V2)
V1 is calculated voltage, V2 is reference voltage
22
dBm
A logarithmic (base 10) measure of relative power (dB for decibels); relative to
milliwatts (m). A dBm value will be 30 units (1000 times) larger (less negative)
than a dBW value, because of the difference in scale (milliwatts vs. watts).
DC-HSPA+
Dual Carrier HSPA+
DCS
Digital Cellular System
A cellular communication infrastructure that uses the 1.8 GHz radio spectrum.
DL
Downlink (network to mobile)
DUN
Dial-Up Networking
DRX
Discontinuous Reception
DSM
Distributed Shared Memory
DUT
Device Under Test
EDGE
Enhanced Data rates for GSM Evolution
eHRPD
Evolved High Rate Packet Data — Enhances traditional 1xEV-DO to enable LTE
to CDMA handover.
EIRP
Effective (or Equivalent) Isotropic Radiated Power
EMC
Electromagnetic Compatibility
EMI
Electromagnetic Interference
ERP
Effective Radiated Power
ESD
Electrostatic Discharge
FCC
Federal Communications Commission
The U.S. federal agency that is responsible for interstate and foreign
communications. The FCC regulates commercial and private radio spectrum
management, sets rates for communications services, determines standards for
equipment, and controls broadcast licensing. Consult www.fcc.gov.
FDMA
Frequency Division Multiple Access
FER
Frame Error Rate — A measure of receive sensitivity.
firmware
Software stored in ROM or EEPROM; essential programs that remain even when
the system is turned off. Firmware is easier to change than hardware but more
permanent than software stored on disk.
FOTA
Firmware Over The Air — Technology used to download firmware upgrades
directly from the service provider, over the air.
FOV
Field Of View
Proprietary and Confidential - Contents subject to change
4112880
Acronyms
Table 5-1: Acronyms and definitions (Continued)
Acronym or term
Rev 1 Dec.12
Definition
FSN
Factory Serial Number—A unique serial number assigned to the mini card during
manufacturing.
GCF
Global Certification Forum
GLONASS
Global Navigation Satellite System — A Russian system that uses a series of 24
satellites in middle circular orbit to provide navigational data.
GMSK
Gaussian Minimum Shift Keying modulation
GNSS
Global Navigation Satellite Systems (GPS plus GLONASS)
GPRS
General Packet Radio Service
GPS
Global Positioning System
An American system that uses a series of 24 satellites in middle circular orbit to
provide navigational data.
GSM
Global System for Mobile Communications
Host
The device into which an embedded module is integrated
HSDPA
High Speed Downlink Packet Access
HSPA+
Enhanced HSPA, as defined in 3GPP Release 7 and beyond
HSUPA
High Speed Uplink Packet Access
Hz
Hertz = 1 cycle / second
IC
Industry Canada
IF
Intermediate Frequency
IMEI
International Mobile Equipment Identity
IMS
IP Multimedia Subsystem — Architectural framework for delivering IP multimedia
services.
inrush current
Peak current drawn when a device is connected or powered on
inter-RAT
Radio Access Technology
IOT
Interoperability Testing
IS
Interim Standard.
After receiving industry consensus, the TIA forwards the standard to ANSI for
approval.
IS-2000
3G radio standards for voice and data (CDMA only)
IS-95
2G radio standards targeted for voice (cdmaONE)
LED
Light Emitting Diode.
A semiconductor diode that emits visible or infrared light.
LHCP
Left-Hand Circular Polarized
LNA
Low Noise Amplifier
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Hardware Integration Guide
Table 5-1: Acronyms and definitions (Continued)
Acronym or term
24
Definition
LPM
Low Power Mode
LPT
Line Print Terminal
LTE
Long Term Evolution—a high-performance air interface for cellular mobile
communication systems.
MCS
Modulation and Coding Scheme
MHz
Megahertz = 10e6 Hz
MEID
Mobile Equipment Identifier — The unique second-generation serial number
assigned to the minicard for use on the wireless network.
MIMO
Multiple Input Multiple Output—wireless antenna technology that uses multiple
antennas at both transmitter and receiver side. This improves performance.
NAS / AS
Network Access Server
NC
No Connect
NIC
Network Interface Card
NMEA
National Marine Electronics Association
OEM
Original Equipment Manufacturer—a company that manufactures a product and
sells it to a reseller.
OFDMA
Orthogonal Frequency Division Multiple Access
OMA DM
Open Mobile Alliance Device Management — A device management protocol.
OTA
‘Over the air’ (or radiated through the antenna)
PA
Power Amplifier
packet
A short, fixed-length block of data, including a header, that is transmitted as a unit
in a communications network.
PCB
Printed Circuit Board
PCS
Personal Communication System
A cellular communication infrastructure that uses the 1.9 GHz radio spectrum.
PDN
Packet Data Network
PMI
Pre-coding Matrix Index
PSS
Primary synchronisation signal
PST
Product Support Tools
PTCRB
PCS Type Certification Review Board
QAM
Quadrature Amplitude Modulation.
This form of modulation uses amplitude, frequency, and phase to transfer data on
the carrier wave.
QMI
Qualcomm MSM/Modem Interface
Proprietary and Confidential - Contents subject to change
4112880
Acronyms
Table 5-1: Acronyms and definitions (Continued)
Acronym or term
Rev 1 Dec.12
Definition
QOS
Quality of Service
QPSK
Quadrature Phase-Shift Keying
QPST
Qualcomm Product Support Tools
RAT
Radio Access Technology
RF
Radio Frequency
RI
Ring Indicator
roaming
A cellular subscriber is in an area where service is obtained from a cellular service
provider that is not the subscriber’s provider.
RSE
Radiated Spurious Emissions
RSSI
Received Signal Strength Indication
SDK
Software Development Kit
SED
Smart Error Detection
Sensitivity
(Audio)
Measure of lowest power signal that the receiver can measure.
Sensitivity (RF)
Measure of lowest power signal at the receiver input that can provide a prescribed
BER / BLER / SNR value at the receiver output.
SG
An LTE signaling interface for SMS (“SMS over SGs”)
SIB
System Information Block
SIM
Subscriber Identity Module. Also referred to as USIM or UICC.
SIMO
Single Input Multiple Output—smart antenna technology that uses a single
antenna at the transmitter side and multiple antennas at the receiver side. This
improves performance and security.
SISO
Single Input Single Output—antenna technology that uses a single antenna at
both the transmitter side and the receiver side.
SKU
Stock Keeping Unit—identifies an inventory item: a unique code, consisting of
numbers or letters and numbers, assigned to a product by a retailer for purposes
of identification and inventory control.
SMS
Short Message Service.
A feature that allows users of a wireless device on a wireless network to receive
or transmit short electronic alphanumeric messages (up to 160 characters,
depending on the service provider).
S/N
Signal-to-noise (ratio)
SNR
Signal-to-Noise Ratio
SOF
Start of Frame — A USB function.
SSS
Secondary synchronisation signal.
Proprietary and Confidential - Contents subject to change25
Hardware Integration Guide
Table 5-1: Acronyms and definitions (Continued)
Acronym or term
26
Definition
SUPL
Secure User Plane Location
TIA/EIA
Telecommunications Industry Association / Electronics Industry Association.
A standards setting trade organization, whose members provide communications
and information technology products, systems, distribution services and
professional services in the United States and around the world. Consult
www.tiaonline.org.
TIS
Total Isotropic Sensitivity
TRP
Total Radiated Power
UDK
Universal Development Kit (for PCI Express Mini Cards)
UE
User Equipment
UICC
Universal Integrated Circuit Card (Also referred to as a SIM card.)
UL
Uplink (mobile to network)
UMTS
Universal Mobile Telecommunications System
USB
Universal Serial Bus
USIM
Universal Subscriber Identity Module (UMTS)
VCC
Supply voltage
VSWR
Voltage Standing Wave Ratio
WAN
Wide Area Network
WCDMA
Wideband Code Division Multiple Access (also referred to as UMTS)
WLAN
Wireless Local Area Network
ZIF
Zero Intermediate Frequency
Proprietary and Confidential - Contents subject to change
4112880
Index
accessories, 7
acronyms and definitions, 21– 26
antenna
connection considerations, 12
custom, design, 13
diversity antenna, disabling, 13
limit, matching coaxial connections, 12
location, considerations, 13
matching, considerations, 13
maximum cable loss, 12
routing, 13
approvals, regulatory and industry, 17
frequency band support
CDMA, 12
GSM, 11, 12
LTE, 11
WCDMA, 11
gain
maximum, 18
grounding
connection considerations, 14
GSM
frequency band support, 11, 12
bands supported, RF
CDMA, 12
GSM, 11, 12
LTE, 11
WCDMA, 11
cable loss
antenna, maximum, 12
CDMA
frequency band support, 12
connection
grounding, 14
connectors, required
host-module, 7
impedance
module–antenna, 13
industry approvals, 17
interference
device generated, 15
host-generated, 14
wireless devices, 14
LTE
frequency band support, 11
noise
leakage, minimizing, 14
desense. See RF
diversity antenna
disabling, 13
PCB
multi-layer, shielding for RF desense, 15
EDGE
connector, required, 7
filtering, RF desense, 15
Rev 1 Dec.12
radiated sensitivity measurement, 16
radiated spurious emissions, 15
regulatory approvals, 17
regulatory information, 17– 20
FCC, 18
limitation of liability, 17
safety and hazards, 17
Proprietary and Confidential - Contents subject to change
27
Hardware Integration Guide
RF
antenna cable loss, maximum, 12
antenna connection, considerations, 12
connectors, required, 7
desense
device-generated, 14
harmonic energy, filtering, 15
mitigation suggestions, 15
shielding suggestions, 15
interference
other devices, 15
wireless devices, 14
RF bands supported
CDMA, 12
GSM, 11, 12
LTE, 11
WCDMA, 11
RF specifications, 11– 16
RSE, 15
sensitivity
radiated measurement, overview, 16
shielding
module, compliance, 12
reducing RF desense, 15
SIM
connector, required, 7
specifications
RF, 11– 16
WCDMA
frequency band support, 11
ZIF (Zero Intermediate Frequency), 14
28
Proprietary and Confidential - Contents subject to change
4112880


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