Product Technical Specification
& Customer Design Guidelines
AirPrime EM7455
4116236
Rev 9
Proprietary and Confidential
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 9 May.16
Proprietary and Confidential - Contents subject to change
3
Product Technical Specification & Customer Design Guidelines
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.
Copyright
©2016 Sierra Wireless. All rights reserved.
Trademarks
Sierra Wireless®, AirPrime®, Skylight™, and the Sierra Wireless logo are
registered 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
1
September 2014
Initial release
2
October 2014
Updated data rates (Table 1-1), LTE features on page 17, standards (Table 2-1),
system block (Figure 3-1), Rx sensitivity (Table 4-4, Table 4-5), Tx power tolerance
band listings (Table 4-6), DC power consumption (Table 5-3)
4
Proprietary and Confidential - Contents subject to change
4116236
Preface
Revision
number
Release date
Changes
3
February 2015
Updated Table 4-4 on page 48 (LTE sensitivity)
Updated Table 4-5 on page 49 (UMTS sensitivity)
Updated Table 4-6 on page 49 (Tx power)
Corrected typo in Table 3-4 on page 32 (UIM_GND / UIM2_GND)
Updated Table 4-7 on page 49 (# of satellites)
4
June 2015
Updated Carrier Aggregation combinations (Table 1-2 on page 16)
Added Windows 8.1 and Windows 10 references
Updated RF block diagram (Figure 3-2 on page 25)
Updated Antenna control section
Added Envelope correlation coefficient to Table B-1 on page 75
Removed RFFE
Updated Table 5-1, Averaged standby DC power consumption, on page 49
Power consumption values measured at 25C (changed from 30)
Removed LTE Band 17
5
September 2015
Added LTE B30
Removed LTE CA B30+B29
Updated Table 4-4 on page 48 (LTE sensitivity)
Updated Table 4-5 on page 49 (UMTS sensitivity)
Updated Table 4-6 on page 49 (Tx power)
Updated Thermal considerations on page 64 (heatsink recommendation)
6
September 2015
Updated Table 5-1, Averaged standby DC power consumption, on page 51
Updated Table 5-2, Averaged call mode DC power consumption, on page 52
Updated Table 5-7, Power-on/off timing parameters (single enumeration), on page 56
7
April 2016
Updated module weight (Table 7-1 on page 61)
Added notes indicating signals should not be driven until device is powered on, in Host
interface pin assignments on page 25 and Power on / off timing on page 55.
Added Packaging on page 97
Added signal strength for acquisition time values (Table 4-7 on page 49)
Relabeled ‘Max‘ column to ‘Typ‘, specified voltage (Table 5-2 on page 52)
Added max current value (Table 5-3 on page 52)
Updated power-on/off timing values
Updated temperature description / details to reflect device performance, including:
· Physical features on page 16 — Clarified temperature range as ‘ambient’.
· Physical features on page 16 — Added AT!PCTEMP to note and adjusted
suggested ‘best performance’ max temperature.
· Table 5-5 on page 54 — Added explanatory note for TEMP_HI_WARN state.
· Table 7-1 on page 61 — Clarified temperature range as ‘ambient’
Adjusted GNSS tracking sensitivity specification to -160 dBm from -161 dBm to reflect
tolerance range of measurement (Table 4-7 on page 49).
Added Figure 7-5, Copper Pad Location on Bottom Side of Module, on page 65.
Updated USIM and USIM2 voltages in Table 3-1 on page 26.
Added GPIO numbers to ANT_CTRL signal names in Table 3-1 on page 26.
Modified note indicating USB2.0 and 3.0 support in USB interface on page 31.
Added LTE bandwidth support (Table 4-2 on page 46) and LTE CA Bandwidth Support
on page 101
Added minimum pulse width to RESET# description in Table 3-7 on page 38.
Rev 9 May.16
Proprietary and Confidential - Contents subject to change
5
Product Technical Specification & Customer Design Guidelines
Revision
number
Release date
Changes
8
April 2016
Corrected indication of areas needing heat dissipation (bottom instead of top) in
Thermal considerations on page 64, and updated recommendation wording in general.
Removed ‘future’ from Galileo support in Position location (GNSS) on page 18
9
May 2016
Corrected ripple voltage value in Power supply noise on page 56
Updated maximum current in Miscellaneous DC power consumption on page 52
Added ‘Important’ notes regarding Band 30 Tx output power, and Band 30 restriction
for external vehicle antennas, in Important compliance information for North American
users on page 68
6
Proprietary and Confidential - Contents subject to change
4116236
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Supported RF bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Physical features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Application interface features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Modem features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
LTE features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Short Message Service (SMS) features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Position location (GNSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Supporting documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Required connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Integration requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Standards Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Host interface pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
USB throughput performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
User-developed drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
SIM interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SIM implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Control interface (Signals) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
WAKE_ON_WAN# — Wake host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
W_DISABLE1# (Wireless disable) and W_DISABLE2# (GNSS disable)36
Full_Card_Power_Off# and RESET# . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
WWAN_LED# — LED output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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Product Technical Specification & Customer Design Guidelines
Antenna control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Wireless coexistence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
RF Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
RF connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Antenna and cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Ground connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Interference and sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Interference from other wireless devices . . . . . . . . . . . . . . . . . . . . . . . . . 43
Host-generated RF interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Device-generated RF interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Methods to mitigate decreased Rx performance . . . . . . . . . . . . . . . . . . . 44
Radiated Spurious Emissions (RSE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Radiated sensitivity measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Sierra Wireless’ sensitivity testing and desensitization investigation . . . 45
Sensitivity vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Supported frequencies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Conducted Rx sensitivity / Tx power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
GNSS specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Module power states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Power state transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Power interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Power ramp-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Power supply noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
SED (Smart Error Detection) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Tx power control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
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Contents
Software Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Support tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Mechanical and Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . 61
Device views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Labeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Electrostatic discharge (ESD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Thermal considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Module integration testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Regulatory Compliance and Industry Certifications . . . . . . . . . . . . . . . . . . . 67
Important notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Safety and hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Important compliance information for North American users . . . . . . . . . . . . 68
Audio Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
PCM/I2S Audio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Antenna Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Recommended Main / Diversity Antenna Specifications . . . . . . . . . . . . . . . . 75
Recommended GNSS Antenna Specifications . . . . . . . . . . . . . . . . . . . . . . 77
Antenna Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Design Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
AT command entry timing requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Acceptance testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Acceptance test requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Acceptance test procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Certification testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
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9
Product Technical Specification & Customer Design Guidelines
Production testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Functional production test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Production test procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
UMTS (WCDMA) RF transmission path test . . . . . . . . . . . . . . . . . . . . . . 87
UMTS (WCDMA) RF receive path test . . . . . . . . . . . . . . . . . . . . . . . . . . 88
LTE RF receive path test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
GNSS RF receive path test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Quality assurance testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Suggested testing equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Testing assistance provided by Sierra Wireless . . . . . . . . . . . . . . . . . . . . . 93
IOT/Operator testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Extended AT commands for testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Sierra Wireless documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Command documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Other Sierra documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Industry / other documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
LTE CA Bandwidth Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
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List of Tables
Table 1-1: Supported RF bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 1-2: Carrier Aggregation combinations . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 1-3: Required host-module connectors . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 2-1: Standards compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 3-1: Host interface (67-pin) connections — module view . . . . . . . . . . . . . 26
Table 3-2: Power and ground specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 3-3: USB interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 3-4: SIM interface signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 3-5: Module control signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 3-6: W_DISABLE_N Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 3-7: Full_Card_Power_Off# and RESET# usage . . . . . . . . . . . . . . . . . . 38
Table 3-8: Antenna control signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 4-1: LTE frequency bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 4-2: LTE bandwidth support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 4-3: WCDMA frequency bands support . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Table 4-4: Conducted Rx (Receive) sensitivity — LTE bands . . . . . . . . . . . . . . 48
Table 4-5: Conducted Rx (Receive) sensitivity — UMTS bands. . . . . . . . . . . . . 49
Table 4-6: Conducted Tx (Transmit) power tolerances . . . . . . . . . . . . . . . . . . . 49
Table 4-7: GNSS specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Table 5-1: Averaged standby DC power consumption . . . . . . . . . . . . . . . . . . . 51
Table 5-2: Averaged call mode DC power consumption . . . . . . . . . . . . . . . . . . 52
Table 5-3: Miscellaneous DC power consumption . . . . . . . . . . . . . . . . . . . . . . 52
Table 5-4: Module power states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Table 5-5: Power state transition trigger levels . . . . . . . . . . . . . . . . . . . . . . . . . 54
Table 5-6: Power-on/off timing parameters (double enumeration) . . . . . . . . . . 56
Table 5-7: Power-on/off timing parameters (single enumeration) . . . . . . . . . . . 56
Table 5-8: Dynamic power control of SAR backoff state . . . . . . . . . . . . . . . . . . 57
Table 7-1: Mechanical and environmental specifications . . . . . . . . . . . . . . . . . 61
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11
Product Technical Specification & Customer Design Guidelines
Table 8-1: Antenna Gain Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Table 8-2: Collocated Radio Transmitter Specifications . . . . . . . . . . . . . . . . . . 70
Table A-1: Host interface (67-pin) connections — module view. . . . . . . . . . . . . 71
Table A-2: PCM / I2S interface signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Table A-3: PCM timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Table A-4: Master transmitter with data rate = 3.072 MHz (±10%) . . . . . . . . . . 74
Table B-1: Antenna requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Table B-2: GNSS antenna requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Table C-1: Hardware integration design considerations . . . . . . . . . . . . . . . . . . 79
Table D-1: Test settings — UMTS transmission path . . . . . . . . . . . . . . . . . . . . 87
Table D-2: Test settings — UMTS receive path . . . . . . . . . . . . . . . . . . . . . . . . . 88
Table D-3: Test settings — LTE receive path. . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Table D-4: Extended AT commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Table G-1: LTE CA Inter-band Bandwidth Support. . . . . . . . . . . . . . . . . . . . . 101
Table G-2: LTE CA Intra-band (Contiguous) Bandwidth Support . . . . . . . . . . 103
Table G-3: LTE CA Intra-band (Non-contiguous) Bandwidth Support . . . . . . 104
Table H-1: Acronyms and definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
12
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4116236
List of Figures
Figure 3-1: System block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 3-2: Expanded RF block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 3-3: SIM application interface (applies to both SIM interfaces) . . . . . . . 33
Figure 3-4: SIM card contacts (contact view) . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 3-5: Recommended WAKE_ON_WAN# connection . . . . . . . . . . . . . . . 36
Figure 3-6: Recommended wireless disable connection . . . . . . . . . . . . . . . . . . 37
Figure 3-7: Example LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 4-1: Module connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 5-1: Voltage / temperature monitoring state machines . . . . . . . . . . . . . . 55
Figure 5-2: Signal timing (Full_Card_Power_Off#, and USB enumeration) . . . 55
Figure 7-1: Top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 7-2: Dimensioned view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Figure 7-3: Unit label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 7-4: Shield locations (Top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 7-5: Copper Pad Location on Bottom Side of Module . . . . . . . . . . . . . . 65
Figure A-1: PCM_SYNC timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure A-2: PCM codec to module timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure A-3: Module to PCM codec timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure A-4: I2S transmitter timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 5-1: Device placement in module tray . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Figure 5-2: Shipping package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Rev 9 May.16
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4116236
1
1: Introduction
The Sierra Wireless EM7455 Embedded Module is an M.2 module
that provides LTE, UMTS, and GNSS connectivity for notebook,
ultrabook, tablet computers, and M2M applications over several radio
frequency bands.
Supported RF bands
The modem, based on Qualcomm's MDM9230 baseband processor,
supports data operation on LTE and UMTS networks over the bands
described in Table 1-1, with LTE carrier aggregation (CA) as
described in Table 1-2.
Table 1-1: Supported RF bands
Bands
Data Rates / Notes
Technology
LTE
1
2
3
4
5
7
8
12
13
20
25
26
29
30
F
F
F
F
F
F
F
F
F
F
F
F
F
F
41
T
Data rates:
• Downlink (Cat 6):
FDD: 300 Mbps
TDD: 222 Mbps
•
Uplink (Cat 6):
FDD: 50 Mbps
TDD: 26 Mbps
Notes:
• Downlink MIMO
support (2x2; 4x2)
•
DC-HSPA+
HSPA+
HSPA
UMTS
Y
Y
Y
Y
Y
Y
N/A
F=FDD; T= TDD
Data rates:
• Downlink (Cat 24):
Up to 42 Mbps
•
Uplink (Cat 6):
Up to 5.76 Mbps
Notes:
• Diversity support
GNSS
•
GPS: 1575.42 MHz
•
GLONASS: 1602 MHz
•
BeiDou: 1561.098 MHz
•
Galileo1: 1575.42 MHz
1. Future firmware upgrade
Rev 9 May.16
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Product Technical Specification & Customer Design Guidelines
Table 1-2: Carrier Aggregation combinations
1+8
2 + 2 / 5 / 12 / 13 / 29
3 + 7 / 20
4 + 4 / 5 / 12 / 13 / 29
5 + 2 / 4 / 30
7 + 3 / 7 / 20
8+1
12 + 2 / 4 / 30
13 + 2 / 4
20 + 3 / 7
30 + 5 / 12
41 + 41
Physical features
•
M.2 form factor — WWAN Type 3042-S3-B (in WWAN — USB 3.0 Port
Configuration 2), as specified in [8] PCI Express NGFF (M.2) Electromechanical Specification Revision 1.0. (Note: Any variations from the specification are detailed in this document.)
•
Ambient operating temperature range:
· Class A (3GPP compliant): -30°C to +70°C
· Class B (operational, non-3GPP compliant): -40°C to +85°C (reduced
operating parameters required)
Important: The internal module temperature (reported by AT!PCTEMP) must be kept
below 90°C. For best performance, the internal module temperature should be kept below
80°C. Proper mounting, heat sinks, and active cooling may be required, depending on the
integrated application.
Application interface features
16
•
USB interface (QMI) for Windows 7, Linux, and Android
•
MBIM for Windows 8.1 and Windows 10
•
AT command interface ([1] AT Command Set for User Equipment (UE)
(Release 6) (Doc# 3GPP TS 27.007), plus proprietary extended AT
commands) in [2] AirPrime EM74xx / MC74xx AT Command Reference
(Doc# 4117727)
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4116236
Introduction
Note: OMA DM and FOTA
support is operatordependent.
•
Software Development Kits (SDK),including API (Application Program
Interface) functions:
· Windows 7, Windows 8.1, Windows 10
· Linux
•
Support for active antenna control via dedicated antenna control signals
(ANTCTL0:3)
•
Dynamic power reduction support via software and dedicated GPIO (DPR)
•
OMA DM (Open Mobile Alliance Device Management)
•
FOTA (Firmware Over The Air)
Modem features
•
LTE / DC-HSPA+ / HSPA+ / HSPA / UMTS (WCDMA) operation
•
Multiple (up to 16) cellular packet data profiles
•
Traditional modem COM port support for AT commands
•
USB suspend / resume
•
Sleep mode for minimum idle power draw
•
SIM application tool kit with proactive SIM commands
•
Enhanced Operator Name String (EONS)
•
Mobile-originated PDP context activation / deactivation
•
Support QoS profile
· Release 99 QoS negotiation—Background, Interactive, and Streaming
· Release 97—Precedence Class, Reliability Class, Delay Class, Peak
Throughput, Mean Throughput
•
Static and Dynamic IP address. The network may assign a fixed IP address
or dynamically assign one using DHCP (Dynamic Host Configuration
Protocol).
•
PAP and CHAP support
•
PDP context type (IPv4, IPv6, or IPv4v6). IP Packet Data Protocol context
supports dual IPv4v6.
•
RFC1144 TCP/IP header compression
LTE features
•
Rev 9 May.16
Carrier aggregation:
· DL LTE-FDD
· 20 MHz intraband non-contiguous
· 40 MHz interband
· DL LTE-TDD
· 40 MHz intraband contiguous and non-contiguous
· 40 MHz interband
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Product Technical Specification & Customer Design Guidelines
•
CSG support (LTE Femto)
•
LTE Advanced receivers (NLIC, eICIC, feICIC)
•
Basic cell selection and system acquisition
· PSS / SSS / MIB decode
· SIB1–SIB16 decoding
•
NAS / AS security procedures
· Snow 3G / AES / ZUC security
•
CQI / RI / PMI reporting
•
Paging procedures
· Paging in Idle and Connected mode
•
Dedicated bearer
· Network-initiated dedicated bearer
· UE-initiated dedicated bearer
•
Multiple PDN connections (IPv4 and IPv6 combinations), subject to operating
system support.
•
Connected mode intra-LTE mobility
•
Idle mode intra-LTE mobility
•
iRAT between LTE / 3G for idle and connection release with redirection
•
Detach procedure
· Network-initiated detach with reattach required
· Network-initiated detach followed by connection release
Short Message Service (SMS) features
•
Mobile-originated and mobile-terminated SMS over IMS for LTE
•
Mobile-originated and mobile-terminated SMS over SGs for LTE
Position location (GNSS)
18
•
Customizable tracking session
•
Automatic tracking session on startup
•
Concurrent standalone GPS, GLONASS, Galileo, and BeiDou
•
Assisted GPS (A-GPS) SUPL1.0
•
Assisted GPS / GLONASS SUPL2.0
•
gpsOneXTRA 3.0 with GPS + GLONASS + BeiDou support
•
GPS / GLONASS on dedicated connector or diversity connector
•
BeiDou on dedicated connector, or on diversity connector with reduced
performance
•
Galileo on dedicated connector or diversity connector (future firmware
upgrade)
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4116236
Introduction
Supporting documents
Several additional documents describe module design, usage, integration, and
other features. See References on page 99.
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 1-3 describes the connectors used to integrate the EM7455 Embedded
Module into your host device.
Table 1-3: Required host-module connectors 1
Connector type
RF cables
EDGE (67 pin)
SIM
Description
•
Mate with M.2-spec connectors
•
Three connector jacks (I-PEX 20448-001R-081 or equivalent)
•
Slot B compatible — Per the M.2 standard ([8] PCI Express
NGFF (M.2) Electromechanical Specification Revision 1.0), 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. See SIM interface on page 32 for
details.
1. Manufacturers/part numbers are for reference only and are subject to change. Choose
connectors that are appropriate for your own design.
Ordering information
To order, contact the Sierra Wireless Sales Desk at +1 (604) 232-1488 between
8 AM and 5 PM Pacific Time.
Rev 9 May.16
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19
Product Technical Specification & Customer Design Guidelines
Integration requirements
Sierra Wireless provides, in the documentation suite, guidelines for successful
module integration and offers integration support services as necessary.
When integrating the EM7455 Embedded Module, the following items must be
addressed:
•
Mounting — Effect on temperature, shock, and vibration performance
•
Power supply — Impact on battery drain and possible RF interference
•
Antenna location and type — Impact on RF performance
•
Regulatory approvals — As discussed in Regulatory Compliance and Industry
Certifications on page 67.
20
•
Service provisioning — Manufacturing process
•
Software — As discussed in Software Interface on page 59.
•
Host interface — Compliance with interface voltage levels
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4116236
2
2: Standards Compliance
The EM7455 Embedded Module complies with the mandatory
requirements described in the following standards. The exact set of
requirements supported is network operator-dependent.
Table 2-1: Standards compliance
Technology
Rev 9 May.16
Standards
LTE
•
3GPP Release 11
UMTS
•
3GPP Release 9
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Product Technical Specification & Customer Design Guidelines
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4116236
3
3: Electrical Specifications
The system block diagram in Figure 3-1 represents the EM7455
module integrated into a host system. The module includes the
following interfaces to the host:
•
Full_Card_Power_Off# — Input supplied to the module by the
host — active-low to turn the unit off, or active-high to turn the unit
on.
•
W_DISABLE1# — Active low input from the host to the EM7455
disables the main RF radio.
•
W_DISABLE2# — Active low input from the host to the EM7455
disables the GNSS radio receiver.
WAKE_ON_WAN# — Active low output used to wake the host when
specific events occur.
WWAN_LED# — Active-low LED drive signal provides an indication
of RADIO ON state, either WWAN or GNSS.
•
•
•
RESET# — Active low input from the host used to reset the
module.
•
•
•
•
Antenna — Three RF connectors (main (Rx / Tx), GNSS, and
auxiliary (diversity/MIMO/GNSS)). For details, see RF Specifications on page 41.
Antenna control — Four signals that can be used to control external
antenna switches — two for high band, and two for low band.
Dynamic power control — Signal used to adjust Tx power to meet
FCC SAR requirements. For details, see Tx power control on
page 57.).
Dual SIM — Supported through the interface connector. The SIM
cavities / connectors must be placed on the host device for this
feature.
•
SIM detect — Internal pullup on the module detects whether a SIM
is present or not:
· If a SIM is not inserted, the pin must be shorted to ground.
· If a SIM is present, the pin will be an open circuit.
•
USB — USB 2.0 and USB 3.0 interfaces to the host for data,
•
COEX — Three signals that can be used to implement wireless
control, and status information.
coexistence between the unit’s radio and other radios.
The EM7455 has two main interface areas — the host I/O connector
and the RF ports. Details of these interfaces are described in the
sections that follow.
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Product Technical Specification & Customer Design Guidelines
RF
BLOCK
RF + GRFC_GPIO
Voltage Supply
NAND
SPMI
External NAND and
RAM
USIM2
SIM Detect2
VPH/
VBAT
Audio I2S/PCM
Audio I2C
CBL_PWR_N
SIM Detect1
LED_DRV_N
MDM9230
USIM1
RESIN_N
PDM9635
DDR2 DRAM
W_DISABLE#1
W_DISABLE#2
DPR
ANTCTL
COEX_RXD / COEX_TXD /
COEX3
USB3.0
HOST INTERFACE CONNECTOR
WAKE_ON_WAN#
VCC
RESET#
LED#1
Full_Card_Power_Off#
USB2.0
Figure 3-1: System block diagram
24
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4116236
Electrical Specifications
WTR3925
DRX_MB3
DRX_MB4
DRX_MB5
DRX_LB1
DRX_LB2
DRX_LB3
DRX_LB4
DRX_MLB6
TX_FBRX_P
TX_FBRX_M
TX_HMB1
TX_HMB2
TX_HMB3
TX_HMB4
TX_HMLB1
TX_HMLB2
TX_LB1
TX_LB2
TX_LB3
TX_LB4
PRX_HB1
PRX_HB2
PRX_HB3
PRX_HB4
PRX_MB1
PRX_MB2
PRX_MB3
PRX_MB4
PRX_MB5
PRX_LB1
PRX_LB2
PRX_LB3
PRX_LB4
PRX_MLB6
B30
B25
B25
NC
GNSS
B1
B3
B8
B1/4
B20
NC
B12/13
B8
B26
B12/17/13
B29
B20
B26
B7-TX
B29
B30-TX
B30
B41-RX
FBRX
FBRX
B41-TRX
B41
NC
B30/41
B1
B1/25/3/4
B4
B7
B25
NC
B26
NC
B20
B26/8/20
B13/12/17
B7
B1
B4
B3
NC
LPF
B3
B25
B26
B20
B12
B12
B13
LPF
LPF
B13
B8
NC
MB-HB SW
DRX_MB2
B41
B30
LB SW
DRX_MB1
B3
MB-HB SW
DRX_HB4
B7
B41
LB SW
DRX_HB3
GPS+GLONASS
B7
NC
SW
DRX_HB2
GNSS
SW
DRX_HB1
NC
GNSS
SW
GNSS_L2
GPS+GLONASS+COMPASS
GNSS
SW
GNSS_L1
B8
B7
NC
B41
B30
B25
NC
B3
B4
B1
B8
B12/17/13
B20
B26
B29
B29
Figure 3-2: Expanded RF block diagram
Host interface pin assignments
The EM7455 host I/O connector provides pins for power, serial communications,
and control. Pin assignments are listed in Table 3-1.
Refer to the following tables for pin details based on interface types:
Rev 9 May.16
•
Table 3-2, Power and ground specifications, on page 31
•
Table 3-3, USB interfaces, on page 31
•
Table 3-4, SIM interface signals, on page 32
•
Table 3-5, Module control signals, on page 35
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Product Technical Specification & Customer Design Guidelines
Note: On any given interface (USB, SIM, etc.), leave unused inputs and outputs as noconnects.
Note: The host should not drive any signals to the module until the power-on sequence is
complete.
Table 3-1: Host interface (67-pin) connections — module view 1
Pin
Pin
Signal name
type
2
Description
Voltage levels (V)
Active
state
Direction 3
Min
Typ
Max
1
CONFIG_3
(NC in default module
configuration)
Reserved — Host must
not repurpose this pin.
2
VCC
V
Power source
Input
Power
3.135
3.7
4.4
3
GND
V
Ground
Input
Power
-
0
-
4
VCC
V
Power source
Input
Power
3.135
3.7
4.4
5
GND
V
Ground
Input
Power
-
0
-
6
Full_Card_Power_Off#4
PD
Turn modem on
Input
High
0.7
-
4.4
Turn modem off
Input
Low
-0.3
-
0.5
7
USB_D+4
-
USB data positive
Input/Output
Differential
-
-
-
8
W_DISABLE1#5
PU
Wireless Disable (main
RF radio)
Input
Low
-
-
0.4
9
USB_D-4
-
USB data negative
Input/Output
Differential
-
-
-
10
WWAN_LED#
OC
LED Driver
Output
Low
0
-
0.15
11
GND
V
Ground
Input
Power
-
0
-
12
Key
Notch location
13
Key
Notch location
14
Key
Notch location
15
Key
Notch location
16
Key
Notch location
17
Key
Notch location
18
Key
Notch location
19
Key
Notch location
20
NC
(For audio interface pin usage,
see Audio Support on
page 71.)
Reserved — Host must
not repurpose this pin.
21
CONFIG_0
(GND in default module
configuration)
Reserved — Host must
not repurpose this pin.
Output
-
26
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0
4116236
Electrical Specifications
Table 3-1: Host interface (67-pin) connections — module view 1 (Continued)
Pin
Pin
Signal name
type
22
NC
(For audio interface pin usage,
see Audio Support on
page 71.)
23
WAKE_ON_WAN#4
24
NC
(For audio interface pin usage,
see Audio Support on
page 71.)
25
DPR
2
Description
Direction 3
Voltage levels (V)
Active
state
Min
Typ
Max
Reserved — Host must
not repurpose this pin.
OC
Wake Host
Output
Low
0
0.1
Input
High
1.17
1.80
2.10
Input
Low
-0.3
-
0.63
Reserved — Host must
not repurpose this pin.
-
Dynamic power control
26
W_DISABLE2#5
PU
Wireless disable
(GNSS radio)
Input
Low
-
-
0.4
27
GND
V
Ground
Input
Power
-
0
-
28
NC
(For audio interface pin usage,
see Audio Support on
page 71.)
Reserved — Host must
not repurpose this pin.
29
USB3.0_TX-
USB 3.0 Transmit Data
negative
Output
Differential
-
-
-
30
UIM1_RESET4
SIM Reset
Output
Low
0
-
0.45
High
2.55
(3V SIM)
3.00
(3V SIM)
3.10
(3V SIM)
1.35
(1.8V SIM)
1.80
(1.8V SIM)
1.90
(1.8V SIM)
31
USB3.0_TX+
32
UIM1_CLK4
33
GND
Rev 9 May.16
O
O
V
USB 3.0 Transmit Data
positive
Output
Differential
-
-
-
SIM Clock
Output
Low
0
-
0.45
High
2.55
(3V SIM)
3.00
(3V SIM)
3.10
(3V SIM)
1.35
(1.8V SIM)
1.80
(1.8V SIM)
1.90
(1.8V SIM)
-
0
-
Ground
Input
Power
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Table 3-1: Host interface (67-pin) connections — module view 1 (Continued)
Pin
34
Signal name
UIM1_DATA4
Pin
type
-
2
Description
SIM IO pin
Direction 3
Input
Voltage levels (V)
Active
state
Low
Min
-0.30
(3V SIM)
Typ
-
-0.30
(1.8V SIM)
High
Output
35
USB3.0_RX-
36
UIM1_PWR4
V
Max
0.60
(3V SIM)
0.35
(1.8V SIM)
2.10
(3V SIM)
3.00
(3V SIM)
3.30
(3V SIM)
1.17
(1.8V SIM)
1.80
(1.8V SIM)
2.10
(1.8V SIM)
Low
0
-
0.40
High
2.55
(3V SIM)
3.00
(3V SIM)
3.10
(3V SIM)
1.35
(1.8V SIM)
1.80
(1.8V SIM)
1.90
(1.8V SIM)
USB 3.0 Receive Data
negative
Input
Differential
-
-
-
SIM VCC supply
Output
Power
2.90
(3V SIM)
3.00
(3V SIM)
3.10
(3V SIM)
1.75
(1.8V SIM)
1.80
(1.8V SIM)
1.85
(1.8V SIM)
37
USB3.0_RX+
USB 3.0 Receive Data
positive
Input
Differential
-
-
-
38
NC
Reserved
39
GND
Ground
Input
Power
-
0
-
40
SIM_DETECT_2
SIM2 indication
Input
41
NC
Reserved
42
UIM2_DATA4
V
-
SIM2 IO pin
Input
0 V — SIM not present
Open circuit — SIM present
Low
-0.30
(3V SIM)
-
-0.30
(1.8V SIM)
High
Output
43
NC
28
0.60
(3V SIM)
0.35
(1.8V SIM)
2.10
(3V SIM)
3.00
(3V SIM)
3.30
(3V SIM)
1.17
(1.8V SIM)
1.80
(1.8V SIM)
2.10
(1.8V SIM)
Low
0
-
0.40
High
2.55
(3V SIM)
3.00
(3V SIM)
3.10
(3V SIM)
1.35
(1.8V SIM)
1.80
(1.8V SIM)
1.90
(1.8V SIM)
Reserved
Proprietary and Confidential - Contents subject to change
4116236
Electrical Specifications
Table 3-1: Host interface (67-pin) connections — module view 1 (Continued)
Pin
44
45
46
Pin
Signal name
UIM2_CLK
type
4
O
GND
4
UIM2_RESET
2
Description
SIM2 Clock
Direction 3
Output
Voltage levels (V)
Active
state
Min
Typ
Low
0
-
0.45
High
2.55
(3V SIM)
3.00
(3V SIM)
3.10
(3V SIM)
1.35
(1.8V SIM)
1.80
(1.8V SIM)
1.90
(1.8V SIM)
V
Ground
Input
Power
-
0
-
O
SIM2 Reset
Output
Low
0
-
0.45
High
2.55
(3V SIM)
-
3.10
(3V SIM)
1.35
(1.8V SIM)
47
NC
48
UIM2_PWR4
V
SIM2 VCC supply
NC
Reserved
50
NC
Reserved
51
GND
52
NC
Reserved
53
NC
Reserved
54
NC
Reserved
55
NC
Reserved
56
NC
(For audio interface pin usage,
see Audio Support on
page 71.)
Reserved — Host must
not repurpose this pin.
57
GND
58
NC
(For audio interface pin usage,
see Audio Support on
page 71.)
Reserved — Host must
not repurpose this pin.
59
ANTCTL0 (GPIO1)
COEX36
Rev 9 May.16
1.90
(1.8V SIM)
Reserved
49
60
Max
V
V
-
Ground
Output
Power
2.90
(3V SIM)
3.00
(3V SIM)
3.10
(3V SIM)
1.75
(1.8V SIM)
1.80
(1.8V SIM)
1.85
(1.8V SIM)
Input
Power
-
0
-
Input
Power
-
0
-
Customer-defined
external switch control
for multiple antennas
Output
High
1.35
-
1.80
Output
Low
0
-
0.45
Coexistence
Input
High
1.17
1.80
2.10
Input
Low
-0.3
-
0.63
Output
High
1.35
-
1.80
Output
Low
0
-
0.45
Ground
Proprietary and Confidential - Contents subject to change
29
Product Technical Specification & Customer Design Guidelines
Table 3-1: Host interface (67-pin) connections — module view 1 (Continued)
Pin
61
62
63
64
65
Signal name
Pin
type
ANTCTL1 (GPIO2)
COEX_RXD6
-
ANTCTL2 (GPIO3)
COEX_TXD6
-
ANTCTL3 (GPIO4)
2
Description
Voltage levels (V)
Active
state
Direction 3
Min
Typ
Max
Customer-defined
external switch control
for multiple antennas
Output
High
1.35
-
1.80
Output
Low
0
-
0.45
Coexistence
Input
High
1.17
1.80
2.10
Input
Low
-0.3
-
0.63
Output
High
1.35
-
1.80
Output
Low
0
-
0.45
Customer-defined
external switch control
for multiple antennas
Output
High
1.35
-
1.80
Output
Low
0
-
0.45
Coexistence
Input
High
1.17
1.80
2.10
Input
Low
-0.3
-
0.63
Output
High
1.35
-
1.80
Output
Low
0
-
0.45
Customer-defined
external switch control
for multiple antennas
Output
High
1.35
-
1.80
Output
Low
0
-
0.45
66
SIM_DETECT4
PU
SIM indication
Input
67
RESET#
PU
Reset module
Input
Low
68
NC
Reserved
69
CONFIG_1
(GND in default module
configuration)
Reserved — Host must
not repurpose this pin.
Output
-
70
VCC
V
Power source
Input
Power
3.135
3.7
4.4
71
GND
V
Ground
Input
Power
-
0
-
72
VCC
V
Power source
Input
Power
3.135
3.7
4.4
73
GND
V
Ground
Input
Power
-
0
-
74
VCC
V
Power source
Input
Power
3.135
3.7
4.4
75
CONFIG_2
(NC in default module
configuration)
V
Reserved
Output
-
-
0 V — SIM not present
Open circuit — SIM present
-0.3
0.63
0
-
1. All values are preliminary and subject to change.
2. I — Input; O — Digital output; OC — Open Collector output; PU — Digital input (internal pull up); PD — Digital input (internal pull down);
V — Power or ground
3. Signal directions are from module’s point of view (e.g. ‘Output’ from module to host, ‘Input’ to module from host.)
4. Required signal
5. Sierra Wireless recommends that the host implement an open collector driver where a Low signal will turn the module off or enter
low power mode, and a high signal will turn the module on or leave low power mode.
6. Wireless coexistence will be supported in a future firmware upgrade. Contact your Sierra Wireless account representative for more
information.
30
Proprietary and Confidential - Contents subject to change
4116236
Electrical Specifications
Power supply
The host provides power to the EM7455 through multiple power and ground pins
as summarized in Table 3-2.
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.
Table 3-2: Power and ground specifications
Name
Pins
Specification
Min
VCC
(3.7V)
2, 4, 70, 72, 74
Voltage range
See Table 3-1 on page 26.
Ripple voltage
-
-
100
mVpp
-
-
0
-
V
GND
3, 5, 11, 27, 33, 39,
45, 51, 57, 71, 73
Typ
Max
Units
USB interface
Important: Host support for USB 2.0 signals is required.
Important: Host support for USB 3.0 signals is optional, but if supported then the host
must also support fallback to USB 2.0.
The device supports USB 2.0 and USB 3.0 interfaces for communication between
the host and module.
The interfaces comply with the [9] Universal Serial Bus Specification, Rev 2.0 and
[10] Universal Serial Bus Specification, Rev 3.0 (subject to limitations described
below), and the host device must be designed to the same standards. (Note:
When designing the host device, careful PCB layout practices must be followed.)
Table 3-3: USB interfaces
Name
Pin
Description
USB 2.0 USB_D+
7
Data positive
USB_D-
9
Data negative
USB 3.0 USB3.0-TX-1
29
Transmit data negative
USB3.0-TX+1
31
Transmit data positive
USB3.0-RX-1
35
Receive data negative
USB3.0-RX+1
37
Receive data positive
1. Signal directions (Tx / Rx) are from device’s point of
view.
Rev 9 May.16
Proprietary and Confidential - Contents subject to change
31
Product Technical Specification & Customer Design Guidelines
USB throughput performance
This device has been designed to achieve optimal performance and maximum
throughput using USB superspeed mode (USB 3.0). Although the device may
operate with a high speed host, throughput performance will be on an “as is”
basis and needs to be characterized by the OEM. Note that throughput will be
reduced and may vary significantly based on packet size, host interface, and
firmware revision.
User-developed drivers
Details for user-developed USB drivers are described in [4] AirCard / AirPrime
USB Driver Developer’s Guide (Doc# 2130634).
SIM interface
The module supports up to two SIMs (Subscriber Identity Module) (1.8 V or 3 V).
Each SIM holds information for a unique account, allowing users to optimize their
use of each acocunt on multiple devices.
Note: Host support for
SIM interface signals is
required.
The SIM pins (Table 3-4 on page 32) provide the connections necessary to
interface to SIM sockets located on the host device as shown in Figure 3-3 on
page 33. Voltage levels over this interface comply with 3GPP standards.
The types of SIM connectors used depends on how the host device exposes the
SIM sockets.
Table 3-4: SIM interface signals
SIM
Name
Pin
Description
SIM
contact 1
Primary
UIM1_RESET
30
Reset
2
Active low SIM reset
UIM1_CLK
32
Serial clock
3
Serial clock for SIM data
UIM1_DATA
34
Data I/O
7
Bi-directional SIM data line
UIM1_PWR
36
SIM voltage
1
Power supply for SIM
SIM_DETECT
66
SIM indication
-
Input from host indicating whether SIM is present
or not
• Grounded if no SIM is present
Notes
•
UIM_GND
32
Ground
5
No-connect (floating) if SIM is inserted
Ground reference
UIM_GND is common to module ground
Proprietary and Confidential - Contents subject to change
4116236
Electrical Specifications
Table 3-4: SIM interface signals (Continued)
SIM
Pin
Description
SIM
contact 1
Notes
46
Reset
2
Active low SIM reset
UIM2_CLK
44
Serial clock
3
Serial clock for SIM data
UIM2_DATA
42
Data I/O
7
Bi-directional SIM data line
UIM2_PWR
48
SIM voltage
1
Power supply for SIM
SIM indication
-
Input from host indicating whether SIM is present
or not
• Grounded if no SIM is present
Name
Secondary UIM2_RESET
SIM_DETECT_2 40
•
UIM2_GND
SIM indication
-
No-connect (floating) if SIM is inserted
Ground reference
UIM2_GND is common to module ground
1. See Figure 3-4 on page 34 for SIM card contacts.
SIM Detect
UIM-PWR
4.7uF
X5R
typ
0.1uF
(Optional.
Locate near the
SIM socket)
15 k - 30 k
NOTE: UIM signals
refer to both UIM1
and UIM2.
Located near
SIM socket
(C9)
(Optional.
Locate near the
SIM socket)
47 pF, 51
(C1)
Note: SIM Detect
contact may vary
by vendor
(C3)
UIM-CLK
UIM-DATA
(C7)
UIM-RESET
(C2)
UIM_GND
(C5)
SIM card connector
ESD
protection
EM7455
Located near SIM socket.
NOTE: Carefully consider if ESD
protection is required – it may
increase signal rise time and
lead to certification failure
Figure 3-3: SIM application interface (applies to both SIM interfaces)
Rev 9 May.16
Proprietary and Confidential - Contents subject to change
33
Product Technical Specification & Customer Design Guidelines
Contact View (notched corner at top left)
RFU
C8
C4
RFU
I/O
C7
C3
CLK
VPP
C6
C2
RST
GND
C5
C1
VCC
Figure 3-4: SIM card contacts (contact view)
SIM implementation
Note: For interface design
requirements, refer to ETSI
TS 102 230 V5.5.0, section
5.2.
34
When designing the remote SIM interface, you must make sure that SIM signal
integrity is not compromised.
Some design recommendations include:
•
Total impedance of the VCC and GND connections to the SIM, measured at
the module connector, should be less than 1 to minimize voltage drop
(includes any trace impedance and lumped element components — inductors,
filters, etc.).
•
Position the SIM connector 10 cm from the module. If a longer distance is
required because of the host device design, use a shielded wire assembly —
connect one end as close as possible to the SIM connector and the other end
as close as possible to the module connector. The shielded assembly may
help shield the SIM interface from system noise.
•
Reduce crosstalk on the UIM1_DATA and UIM2_DATA lines to reduce the risk
of failures during GCF approval testing.
•
Avoid routing the clock and data lines for each SIM (UIM1_CLK / UIM1_DATA,
UIM2_CLK / UIM2_DATA) in parallel over distances 2 cm — cross-coupling of
a clock and data line pair can cause failures.
•
3GPP has stringent requirements for I / O rise time (
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