Sierra Wireless SB555 SB555 Embedded Modem Module for Mobile Application User Manual 2130271 Hardware Add

Sierra Wireless Inc. SB555 Embedded Modem Module for Mobile Application 2130271 Hardware Add

Contents

Module installation manual

2130271
Rev 1.0
SB555 Embedded Modem
Hardware Integration Guide
Addendum
Original Document 2130075 SB555 Hardware Integration
Guide
Revision 1.0 (April 2002)
2130271 Rev 1.0 Nov.02 1
1
1: RF Integration
• Receiver sensitivity
• Matching
• Antenna options Receiver sensitivity
Page 79 of the of the Hardware Integration Guide includes
“Table 7-1: Radio specifications”. This table has been corrected
to:
The receiver sensitivity in the PCS band has changed from
-104 dBm to less than -106 dBm. The corrosponding sensitivity
on the Cellular band now indicates less than -104 dBm.
Matching antenna and cable
The text on page 83 refering to antenna gain and cable loss
should read: “Overall system antenna gain, with cable loss
should be ≤+9 dBi. Keep in mind that your achieved value will
have an impact on radiated power and RF exposure.”
Antenna options
Page 83 text refering antenna requirements to Table 7-1 is
specifically for frequency band information.
Table 7-1: Radio specifications
Transmitter power Maximum 224 mW into 50 Ω
(+23.5 dBm)
Closed loop frequency
stability
± 150 Hz
PCS band
Receiver sensitivity < -106.5 dBm
Transmit band 1850–1910 MHz
Receive band 1930–1990 MHz
Channel spacing 1.25 MHz
Cellular band
Receiver sensitivity < -104 dBm
Transmit band 824–849 MHz
Receive band 869–894 MHz
Channel spacing 1.25 MHz
2130271 Rev 1.0 Nov.02 2
2
2: FCC Approval
•FCC
• Mobile vs. portable
• Mobile approval and
RF exposure
• Product labeling The Sierra Wireless SB555 embedded modem for CDMA2000
has been approved by the FCC for mobile applications.
Chapter 7: “RF Integration” has been amended. A section
headed FCC should be added, as follows.
FCC
For operation in the United States, your integration is required
to meet appropriate regulatory requirements for stand-alone
operation, including FCC parts 2, 15, 22, and 24.
FCC Part 15 tests must be performed on the “whole device”
and are therefore your responsibility.
Mobile vs. portable devices
The Federal Communications Commission Office of
Engineering & Technology has published a bulletin, “Evalu-
ating Compliance with FCC Guidelines for Human Exposure
to Radiofrequency Electromagnetic Fields”, OET Bulletin 65.
This provides a detailed description of the difference between
mobile and portable devices.
The FCC guidelines differentiate between these devices
according to the antenna’s proximity to people, either the user
or others nearby.
Mobile The FCC defines a mobile device as being designed
for use “in other than fixed locations and to generally be used
in such a way that a separation distance of at least 20 centi-
meters is normally maintained between radiating structures
and the body of the user or nearby persons.”
Mobile devices include vehicle-mounted systems designed to
be used by people that are typically well separated from the
antenna. This also includes wireless devices associated with a
personal computer, provided the antenna is kept at least 20 cm
away from people.
These devices are normally evaluated for exposure potential
with relation to Maximum Permissible Exposure (MPE) limits.
The FCC rules for evaluating mobile devices for RF
compliance are found in 47 CFR part 2.1091.
Hardware Integration Guide Addendum FCC Approval
2130271 Rev 1.0 Nov.02 3
Portable A portable device has a transmitter “designed to be
used with any part of its radiating structure in direct contact
with the user’s body or within 20 centimeters of the body of a
user or bystanders under normal operating conditions.”
This category includes hand-held cellular telephones with the
antenna built into the handset.
Portable devices are evaluated with respect to the Specific
Absorption Rate (SAR) rules. These can be found in 47 CFR
part 2.1093.
Mobile approval and RF exposure
requirements
The SB555 module is approved for mobile operations only with
respect to CFR 47 part 2.1091.
FCC ID: N7NSB555
Note: If this module is intended to be used as a portable device, you
are responsible for separate approval to satisfy the SAR requirements
of part 2.1093.
To ensure that the module meets the current FCC RF exposure
guidelines, a separation distance of at least 20 cm (7.88") must
be maintained between the module’s antenna and the body of
the user and any nearby persons at all times and in all applica-
tions and uses. Additionally, in mobile applications, maximum
antenna gain must not exceed 9 dBi to comply with FCC
regulations limiting both maximum RF output power and
human exposure to RF radiation.
Product labeling requirements
For mobile devices, using the FCC approval obtained by Sierra
Wireless, a label must be affixed to the outside of your end
product—into which the authorized module is incorporated—
with a statement similar to the following:
This device contains TX FCC ID: N7NSB555
You need to provide a manual with your end product that
clearly states the operating requirements and conditions that
must be observed to ensure compliance with current FCC RF
exposure guidelines (as detailed above).
Hardware Integration Guide Addendum FCC Approval
2130271 Rev 1.0 Nov.02 4
The warnings must appear in a prominent location in the User
Guide for your product and may include:
CAUTION Unauthorized modifications or changes not expressly
approved by Sierra Wireless, Inc. could void compliance with
regulatory rules, and thereby your authority to use this equipment.
WARNING (EMI) – This equipment has been tested and found to
comply with the limits pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in an appropriate installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful inter-
ference to radio communication. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or
more of the following measures:
•Reorient or relocate the receiving antenna
•Increase the separation between the equipment and receiver
•Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected
•Consult the dealer or an experienced radio/TV technician for help

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