Numerex FLEXSI WIRELESS FLEX TRANSMITTER User Manual

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Document ID	1649373
Application ID	Jza3A62li+HDQvA0pv3WrQ==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	76.9kB (961298 bits)
Date Submitted	2012-03-06 00:00:00
Date Available	2012-03-06 00:00:00
Creation Date	2012-01-25 11:35:16
Producing Software	Acrobat Distiller 8.1.0 (Windows)
Document Lastmod	2012-01-25 11:35:16
Document Title	Microsoft Word - FLEX SI User Manual_Draft3_2012_01_20.docx
Document Creator	PScript5.dll Version 5.2
Document Author:	smcenery

FLEX SI
USERS MANUAL
Draft
FLEX SI User Manual
Contents
Revision History ............................................................................................................................................ 5
Introduction .................................................................................................................................................. 6
Hardware .................................................................................................................................................. 6
Enclosure ............................................................................................................................................... 6
Sensor Modules .................................................................................................................................... 6
Batteries ................................................................................................................................................ 6
Firmware ................................................................................................................................................... 6
Wireless Communication .......................................................................................................................... 7
Installation .................................................................................................................................................... 7
Factory Configuration ................................................................................................................................... 7
Addendum .................................................................................................................................................... 8
Certifications ............................................................................................................................................. 8
FCC ........................................................................................................................................................ 8
Canadian Compliance (Industry Canada) .............................................................................................. 9
R&TTE 1558 ........................................................................................................................................ 10
Installation Requirements ....................................................................................................................... 10
Mechanical Drawings .............................................................................................................................. 11
Revision History ............................................................................................................................................ 4
Introduction .................................................................................................................................................. 5
Hardware .................................................................................................................................................. 5
Enclosure ............................................................................................................................................... 5
Sensor Modules .................................................................................................................................... 5
Batteries ................................................................................................................................................ 5
Firmware ................................................................................................................................................... 5
Wireless Communication .......................................................................................................................... 6
Installation .................................................................................................................................................... 6
Factory Configuration ................................................................................................................................... 6
Addendum .................................................................................................................................................... 7
Certifications ............................................................................................................................................. 7
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FLEX SI User Manual
FCC ........................................................................................................................................................ 7
Canadian Compliance (Industry Canada) .............................................................................................. 8
R&TTE 1558 .......................................................................................................................................... 9
Installation Requirements ......................................................................................................................... 9
Mechanical Drawings .............................................................................................................................. 10
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FLEX SI User Manual
Revision History
Version
Initial Draft
Draft 2
Author
TL
TL
Draft 3
DW/EJ/TL 2012‐01‐20
Draft
Date
2012‐01‐12
2012‐01‐13
Comments
Initial Draft
Added certifications, mechanical drawings, and description
of sensor module connector
Updated CE, added clarity, formatting changes
FLEX SI User Manual
Introduction
The FLEX SI (Sensor Interface) is a highly adaptable wireless sensor interface for use with the FLEX
satellite based asset tracker. The FLEX SI is capable of supporting various combinations of analog,
digital, and intelligent Sensor Modules. Examples of Sensor Modules include: tank level sensors,
pressure transducers, temperature sensors, door intrusion sensors, event counters, etc. In a typical
usage scenario battery life can be expected to multi‐ year.
The behavior of the FLEX SI is also highly configurable enabling the user to monitor status in near real‐
time, to receive notification of an exception event, or to perform complex analysis in the field for
specific reporting requirements. Numerex will work closely with the end user to identify the proper
Sensor Module and to develop the firmware required to support the required mode of operation.
Up to four FLEX SIs can be paired with one FLEX.
Hardware
Enclosure
The FLEX SI is contained within an ultrasonically welded environmentally sealed enclosure. Connections
to sensor modules are made by joining the FLEX SI 10 pin circular connector to a suitable companion
connector on the Sensor Module cable. Up to four FLEX SIs can be paired to each Satellite FLEX.
Sensor Modules
The Sensor Module is a critical component of the solution. The customer shall identify a measurement
to be taken and work in conjunction with Numerex to source a suitable third‐party sensor. The standard
FLEX SI can provide a maximum 50 milliamps of at 3.3V to power Sensor Modules. The sensors are
connected to the FLEX SI through a 10‐pin circular connector.
Batteries
The FLEX SI requires two 3.6v lithium‐thionyl chloride AA batteries. These batteries are installed in the
FLEX SI in a sealed compartment that is user accessible. The user shall change the batteries in a non‐
hazardous environment to reduce the risk of igniting a flammable or explosive atmosphere.
Battery level monitoring is conducted and reported through sensor messages. Battery life resolution is
reported to within 1%. Due to the nature of the battery chemistry, battery life remaining cannot be
directly inferred from voltage readings. Therefore the value is calculated based on component
measurements and aggregated usage totals. Although the accuracy should be acceptable, the user
should replace the batteries when the level falls below 20% to ensure uninterrupted operation.
Firmware
Firmware is a critical component of the FLEX SI. Custom firmware will be required for each application
as defined by the customer. Thorough system testing shall be conducted to ensure the functionality
delivered is the exact functionality specified.
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FLEX SI User Manual
Wireless Communication
The FLEX SI utilizes a 779 to 928 MHz ISM band transceiver. The frequency is configurable to allow for
ISM band operation in North America, Europe, and other locales. Transmit power, data modulation,
data encoding, and data rates are also configurable to allow for reliable communication in noisy
environments. It is recommended to perform a site survey to identify possible sources of interference
such that Numerex can make adjustments accordingly.
Each FLEX SI has a unique sensor identification number (SID). The SID ranges from 0 to 255. The SID
shall be included in the over‐the‐air message to identify the FLEX SI from which the data transmission
originated. Each FLEX SI is also uniquely paired to a single FLEX through which it shall exclusively report.
In open air the FLEX SI can be up to 50 feet from the FLEX and maintain reliable signaling. Although
greater distances can be achieved, reliability should be assessed before full deployment.
Data transmission through various materials has been tested and throughput has been shown to be
reliable. However, when no direct line of site is available it is important to test wireless signal reliability.
An installation assessment kit, consisting of a FLEX wireless programmer and software tools, is available
from Numerex.
When an event occurs that requires data transmission, the FLEX SI signals the FLEX to wake up and
relays the appropriate information. This process can take up to 40 seconds. Subsequently, the FLEX, if
not handling the transmission of another event, can delay the message up to 40 minutes. In
applications where promptness is a concern, it is recommended to minimize the number of sensors and
optimize the regular reporting of the FLEX to ensure delivery of data as quick as possible. In a typical
application data can be expected to be delivered in less than 1 minute 90% of the time, within 20
minutes 95% of the time, and within 40 minutes 98% of the time.
Installation
The recommended installation method is to use VHB tape to secure the FLEX SI to the asset being
monitored. Ultimately, however, each installation may require special mounting and should be properly
assessed by the customer. Installation should be done in such a manner to provide direct line of sight
from the FLEX SI to the FLEX at a distance greater than 3 feet and less than 50 feet. The FLEX SI should
be mounted “screws down” to avoid attenuating the internal antenna. As previously mentioned,
installation kits should be used to ascertain the wireless signal reliability of the installation before
deployment.
Factory Configuration
For each customer implementation, Numerex will load appropriate firmware, and conduct FLEX SI/FLEX
pairing operations. In most cases, the customer will connect the FLEX SI and Sensor Module cables (10
pin round connector) at final installation. Depending on usage, batteries may be factory installed by
Numerex or shall be required to be installed on site. When a fielded FLEX is to be paired with a FLEX SI,
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FLEX SI User Manual
it is required for the customer to correctly identify and provide the ESN of the FLEX to which the FLEX SI
shall be paired. Alternatively, Numerex will provide intuitive software and the required 10‐pin USB
connector to perform the field paring. Each FLEX SI shall be labeled with its SID and the ESN of the FLEX
to which it is paired.
Addendum
Certifications
FCC
FCC ID: TWV‐FLEXSI
Part 15
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential 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 interference to radio communications.
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 technician for help.
WARNING: Changes or modifications not expressly approved by Numerex may render the device
non‐compliant to FCC and other regulatory body standards for operation and may void the
user’s authority to operate the equipment.
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FLEX SI User Manual
Accessory items that can be readily obtained from multiple retail outlets are not considered to
be special accessories and are not to be marketed with the equipment. Only those accessory
items provided by Numerex have been tested to ensure operation consistent with the
regulatory standards that the device is required to perform.
FCC RF Exposure Information
In August 1996 the Federal Communications Commission (FCC) of the United States with its
action in Report and Order FCC 96‐326 adopted an updated safety standard for human exposure
to radio frequency electromagnetic energy emitted by FCC regulated transmitters. Those guide‐
lines are consistent with the safety standard previously set by both U.S. and international
standards bodies. The design of this module complies with the FCC guidelines and these
international standards. The FCC ID of this unit is TWV192513384X. For more information about
RF exposure, please visit the FCC website at www.fcc.gov.
The term “IC” before the certification/registration number only signifies that the Industry
Canada Technical Specifications were met. The external antennas used for this module must
provide a separation distance of at least 20cm from all persons and must not be co‐located or
operating in conjunction with any other antenna or transmitter.
Canadian Compliance (Industry Canada)
IC ID: 6322A‐FLEXSI
This device complies with Industry Canada license‐exempt RSS standard(s). Operation is subject
to the following two conditions: (1) this device may not cause interference, and (2) this device
must accept any interference, including interference that may cause undesired operation of the
device. The FLEX SI is configured with a less than 10% transmission duty factor and is excluded
from routine RF exposure evaluation in accordance with the requirements of RSS‐102 section
2.5.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne
doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d'en compromettre le
fonctionnement. L'émetteur de la FLEX SI est configuré avec un facteur de devoir de
transmission de moins de 10 %, et est exclu de l'évaluation de l'exposition RF conformément aux
exigences de RSS‐102 article 2.5 de la routine.
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R&TTE 1558
1558
The FLEX SI has been fully tested and complies with all the requirements of EN301 489‐1, EN301
489‐3 and EN60950‐1/A1:2010. Compliance to EN300 200‐1 and EN300 220‐2 has been
demonstrated.
The FLEX SI is certified to the following safety standards:
UL 913, Fifth Edition – Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II,
and III, Division I, Hazardous (Classified) Locations
CSA C22.2 No. 157‐92‐CAN/CSA, 1992.06.01 (R2006) Intrinsically Safe and Non‐Incendive
Equipment for Use in Hazardous Locations – Third Edition
MET listing # E112687.
Installation Requirements
In hazardous environments, must only employ a GEMS XM800 or 860 float sensor using no more than
100 feet of cabling.
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Mechanical Drawings
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