XJQMSLINK00022.4 GHz OEM Wireless Module

User Manual Version 1.0.3 Micro Sensors, Big Ideas® www.microstrain.com SG-Link ® OEM Wireless Strain Node MicroStrain, Inc. ©2010 by MicroStrain, Inc. 459 Hurricane Lane, Suite 102 Williston, VT 05495 Phone 802-862-6629 Fax 802-863-4093 www.microstrain.com [email protected] ISSUED: 15 July 2010 Information in this document is subject to change without notice and does not represent a commitment on the part of MicroStrain, Inc. While MicroStrain, Inc. makes every effort as to the accurateness of this document, it assumes no responsibility for errors or omissions. MicroStrain, Inc. 3 Table of Contents WELCOME .................................................................................................................................................. 5 SUPPORTED FIRMWARE AND SOFTWARE VERSIONS . ERROR! BOOKMARK NOT DEFINED. GUIDE TO RELEVANT DOCUMENTS .................................. ERROR! BOOKMARK NOT DEFINED. OVERVIEW ................................................................................................................................................. 6 INSTALLATION ......................................................................................................................................... 7 STARTER KITS, MODULES AND OPTIONS ........................ ERROR! BOOKMARK NOT DEFINED. COMMON TERMS ..................................................................................................................................... 7 OPERATION ................................................................................................................................................ 9 BASE STATIONS ...................................................................................................................................... 13 USB BASE STATION ............................................................................ERROR! BOOKMARK NOT DEFINED. ANALOG BASE STATION ......................................................................ERROR! BOOKMARK NOT DEFINED. SERIAL BASE STATION ........................................................................ERROR! BOOKMARK NOT DEFINED. DIFFERENTIAL INPUT CHANNEL ...................................................................................................... 13 CONNECTING A QUARTER BRIDGE STRAIN GAUGE .................................................................................... 15 CONNECTING A HALF BRIDGE STRAIN GAUGE ........................................................................................... 16 CONNECTING A FULL BRIDGE STRAIN GAUGE ........................................................................................... 17 PROGRAMMABLE GAIN ............................................................................................................................ 18 SINGLE ENDED INPUT CHANNEL ...................................................................................................... 19 TEMPERATURE SENSOR ...................................................................................................................... 21 TERMINAL STRIP ................................................................................................................................... 22 DEVICE STATUS LED ............................................................................................................................. 23 RADIO AND ANTENNA .......................................................................................................................... 24 NODE ADDRESSING ............................................................................................................................... 25 SAMPLE DURATION CALCULATIONS .............................................................................................. 26 TIME STAMPING ..................................................................................................................................... 27 POWER ....................................................................................................................................................... 28 POWER PROFILE .................................................................................................................................... 28 STANDARD PACKAGING ...................................................................................................................... 29 OPERATING TEMPERATURE .............................................................................................................. 30 SAMPLING RATES .................................................................................................................................. 31 DATALOGGING ......................................................................................................................................... 31 STREAMING .............................................................................................................................................. 31 LOW DUTY CYCLE ................................................................................................................................... 31 HIGH SPEED STREAMING .......................................................................................................................... 32 DATALOGGING MEMORY ................................................................................................................... 33 FACTORY CALIBRATION AND TESTING......................................................................................... 34 CALIBRATION ........................................................................................................................................... 34 TESTING ................................................................................................................................................... 34 MicroStrain, Inc. 4 GENERAL SPECIFICATIONS ........................................................................…

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 www.microstrain.com 459 Hurricane Lane, Unit 102. Williston, VT 05495 ph 802.862.6629 fax 802.863.4093 1 June 23, 2010 To Whom It May Concern: We the undersigned hereby delegate power of attorney to CKC Certification Services, LLC (CKC CS) to act on our behalf in matters of radio equipment certification for our SG-Link-OEM. CKC CS is appointed as an agent to sign applications before regulatory agency(ies) on our behalf, and to receive and exchange data between our company and the agency(ies). Sincerely, Chris Townsend Executive VP - Engineering MicroStrain, Inc.

7/19/2010 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: This letter is to request Modular Approval in accordance with under FCC Rule Part 15.212 for the product certified under FCC ID: XJQMSLINK0002. I hereby declare that the following conditions have been met. a. The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. b. The modular transmitter must have buffered modulation/data inputs to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation. All data inputs are buffered through a microprocessor, no direct external connections to the radio are provided. c. The modular transmitter must have its own power supply regulation. d. The modular transmitter must comply with the antenna and transmission system requirements of §§15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a “unique” antenna coupler (at all connections between the module and the antenna, including the cable). The “professional installation” provision of §15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. e. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing for compliance with part 15 requirements. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in §15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see §15.27(a)). The length of these lines shall be the length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified and commercially available (see §15.31(i)). f. The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. g. The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. h. The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. I acknowledge on behalf of the applicant that compliance of a module in all final configurations is the responsibility of the applicant under the condition that the integrator follows all required installation instructions. Sincerely, Chris Townsend Executive VP - Engineering MicroStrain, Inc.

 www.microstrain.com 459 Hurricane Lane, Unit 102. Williston, VT 05495 ph 802.862.6629 fax 802.863.4093 1 7/19/2010 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Gentlemen: This letter is to comply with Section 0.457 and Section 0.459 pertaining to confidential material. MicroStrain would like the following documents regarding this submission for FCC ID: XJQMSLINK0002 to be kept confidential. 1. All Schematics 2. All Block Diagrams 3. All Operational Descriptions The above material contains trade secrets or technical data, which would customarily be guarded from competitors. We do not want these documents to be accessible to the general public. Sincerely, Chris Townsend Executive VP - Engineering MicroStrain, Inc.

Non-Conformities FCC ID: XJQMSLINK0002 (CKC CS Ref # E10-000054-FCC-01) The items listed below represent requests for information following review of this application for certification under United S tates (FCC) regulations. Further question may arise pending review of responses to these items. OK ID # Non-Conformity or Comment Subm itted Response Respondent / Date of Response √ C 1 According to the user's manu al the EUT may be powered by an externally regulated power su pply. Please provide conducted emissions data This manual was originally created from the manual of a different product, and the sections discussing barrel connector and external regulated power supply had been left in place by error. There is no barrel connector on the module, no external regulated power source for battery charging, etc.. These references have removed in updated attached manual. Jacob Galbreath 7/15/10 √ C 2 Please provide a letter requesting modular approval. Drafted Letter and sent it to the Customer for approval. I approve. Thanks! RE: red section, Yes, there is buffered data inputs. All data inputs are buffered through a microprocessor, no direct external connections to the radio are provided. Jessina Hunter Agent 7/9/10 Jacob Galbreath 7/15/10 √ C 3 Why is confidentiality desired for parts listing & tune-up procedures when none has been included with this application? These were listed in the form letter and are not required for this application therefore they were not provided. I have removed the references to parts listing & tune-up procedures from the letter. I approve. Thanks! Updated Letter Provided. Jessina Hunter Agent 7/9/10 Jacob Galbreath 7/15/10 Jessina Hunter Agent 7/15/10 √ C 4 Please provide an updated user s manual incorporating the statement required by 15.21 This has been added in updated attached manual. Pages 41-42 Jacob Galbreath 7/15/210 √ C 5 Please provide an updated users manual incorporating any necessary statements in acco rdance with 15.27. I don't believe that we have any special accessories required for compliance. Please advise if I am missing something here. Jacob Galbreath 7/15/10 √ C 6 Please provide an updated users manual incorporating the appropriate users manual statement in accordance w ith 15.105. There was a paragraph on page 41 that should have covered this, please advise if it needs to be changed. Jacob Galbreath 7/15/10 √ TL 7 Please provide data showing band edge compliance. Plots are on pages 14 - 16 of 90661-6. Also, refer to pages 26, 29, and 50 – 55. Jeff Gilbert – 07/13/2010 √ C 8 Please include statement in user's manual regarding RF exposure. This has been added in updated attached manual. Pages 41-42 Jacob Galbreath 7/15/10 √ TL 9 Please provide MPE report for this device. Submitted to report department with test data; did the report dept write the report? Jeff Gilbert – 07/13/2010 The items indicated above must be submitted before processing can continue on the referenced application. Failure to provide t he requested information within 60 days may result in application dismissal pursuant to Section 2.917(c) and forfeiture of the filing fee pursuant to Se ction 1.1106. How to read the table: OK column indicates closure by CKC CS. ID column is for use with Agents to assist in identifying the probable source for closure. A – Application issue TL – Test lab issue C – Client issue R – Retesting may be necessary # column indicates unique or separate non-conformity items (note some items may be related). Non-Conformity or Comment column indicates the evaluators specific question or comment. Submitted response column indicates the response or a summary of the response provided. Respondent / Date of Response column indicates the responding party or agent and the date of the response was either received or logged.

Module Label Enclosure Label FCC ID: XJQMSLINK0002 CONTAINS FCC ID: XJQMSLINK0002 IC: 8505A-MSLINK0002 IC: 8505A‐MSLINK0002 SG-Link-OEM SG-Link-OEM 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. Label Location

Page 1 of 5 Report No: 90661-6- R MAXIMUM PERMISSIBLE EXPOSURE REPORT FOR THE MODEL NUMBER: SG-LINK OEM 2.4 GHZ WIRELESS MODULE DATE OF ISSUE: APRIL 20, 2010 PREPARED FOR: MicroStrain, Inc. 459 Hurricane Lane Williston VT 05495 PREPARED BY: Jeff Gilbert CKC Laboratories, Inc. 22116 23rd Drive SE, Suite A Bothell, WA 98021 W.O. No.: 90661 Date of test: April 14-16, 2010 Report No.: 90661-6-R Page 2 of 5 Report No: 90661-6- R Purpose of Test: To demonstrate compliance with United States and Canada RF Exposure requirements for Mobile Equipment (devices used >20cm from the body), where Maximum Permissible Exposure (MPE) Calculations apply. United States MPE Limits in accordance with 1.1310: Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) 0.3-3.0 614 1.63 *(100) 6 3.0-30 1842/f 4.89/f *(900/f2) 6 30-300 61.4 0.163 1 6 300-1500 --- --- f/300 6 1500-100,000 --- --- 5 6 General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) 0.3-1.34 614 1.63 *(100) 30 1.34-30 824/f 2.19/f *(180/f2) 30 30-300 27.5 0.073 0.2 30 300-1500 --- --- f/1500 30 1500-100,000 --- --- 1 30 Note: Limit is calculated based on the mid-band frequency used in the operating frequency range. Page 3 of 5 Report No: 90661-6- R Canadian MPE Limits in accordance with RSS-102: Occupational / Controlled Exposure: General Population / Uncontrolled Exposure Page 4 of 5 Report No: 90661-6- R Equipment operational details: Operating Frequency (MHz) Measured Output Power (dBm) Maximum Mobile Antenna Gain (dBi) Maximum EIRP (dBm) 2400-2483.5 1.47 1.0 2.47 Measurements based from EMC Test Report: 90661-6 Device and Antenna Operating Configuration: Device operating at maximum output power with continuous transmission of modulated data. Test Procedure: This equipment is evaluated in accordance with the guidelines set forth in OET Guide 65 & ANSI C95.1 for the US and Health Canada Safety Code 6 & RSS 102 for Canada. Other Considerations: None MPE Calculations: Limit used: Occupational / Controlled Exposure X General Population / Uncontrolled Exposure MPE Limit = 1 (mW/cm 2 ) 2 2 4 )/( d EIRP cmmWDensityPower π = Given: EIRP in mW and d in cm EIRP (mW) Distance (cm) Power Density (mW/cm 2 ) Limit (mW/cm 2 ) Power Density (W/m 2 ) Limit (W/m 2 ) 1.77 20 0.0003513 1.0 0.00003513 10 Page 5 of 5 Report No: 90661-6- R Statement of Compliance: This device demonstrates compliance under the operating conditions specified in this document. Under normal operating conditions, the antenna is designed to be installed in accordance with the manufacturer’s instructions in such a manor to maintain the minimum separation distance. The MPE calculations shown above demonstrate compliance to the provisions of US and Canadian requirements. As can be seen from the MPE results, this device passes the specified limits at a distance of 20 cm at the maximum output power under normal operating conditions.

This report c written cons e TE S CERT #803 803.05 ontains a total of ent of CKC Laborat STING 3.01, 803.02, 5, 803.06 77 pages and ma tories, Inc. 2.4 GHz O Te FCC This test rep testing perfo of ISO/IEC 1 CKC Laborato We strive t o sound, adapt our custome processes, bu ay be reproduced MicroS TEST OEM Wirel ested to the C Part 15 Sub RSS‐2 Repor Date of is port bears th ormed herein 17025 under ories, Inc. o create long‐t tive, customer ers’ unique EM ut rather as th in full only. Partia Strain, REPORT FO less Modu e following s bpart C Sect & 210 Version rt No.: 90661 ssue: April 20, e accreditati o meets the tes the applicab term, trust ba r first testing MC challenges, e reason we a al reproduction m Inc. OR le, SG‐Link standards: ions 15.247 7 ‐6 2010 on symbol ind st and reporti ble scope of sed relations h services. We , not as an int are in business may only be done k OEM dicating that ing requireme EMC testing hips by provid embrace each terruption to . with the the ents for ding h of set Page 2of 77 Report No.: 90661‐6 TABLE OF CONTENTS Administrative Information .......................................................................................................................... 3 Test Report Information ............................................................................................................................................ 3 Report Authorization ................................................................................................................................................. 3 Test Facility Information ............................................................................................................................................ 4 Site Registration & Accreditation Information .......................................................................................................... 4 Summary of Results ................................................................................................................................................... 5 Conditions During Testing ......................................................................................................................................... 5 Equipment Under Test ............................................................................................................................................... 6 Peripheral Devices ..................................................................................................................................................... 6 FCC Part 15 Subpart C ................................................................................................................................... 7 Temperature and Humidity During Testing ............................................................................................................... 7 15.31(e) Voltage Variation ......................................................................................................................................... 7 15.33(a) Frequency Ranges Tested ............................................................................................................................ 7 15.203 Antenna Requirements .................................................................................................................................. 7 EUT Operating Frequency .......................................................................................................................................... 7 15.247(a)(2) 6 dB Bandwidth ..................................................................................................................................... 8 15.247(b)(3) Max Peak Output Power ..................................................................................................................... 12 15.247(d) Spurious Emissions .................................................................................................................................. 14 15.247(e) Power Spectral Density ........................................................................................................................... 69 RSS‐210 99% Bandwidth .......................................................................................................................................... 72 Supplemental Information .......................................................................................................................... 76 Measurement Uncertainty ...................................................................................................................................... 76 Emissions Test Details .............................................................................................................................................. 76 Page 3of 77 Report No.: 90661‐6 ADMINISTRATIVE INFORMATION Test Report Information REPORT PREPARED FOR: REPORT PREPARED BY: MicroStrain, Inc. 459 Hurricane Lane Williston, VT 05495 Joyce Walker CKC Laboratories, Inc. 5046 Sierra Pines Drive Mariposa, CA 95338 REPRESENTATIVE: Jake Galbreath Project Number: 90661 Customer Reference Number: 8190 DATE OF EQUIPMENT RECEIPT: April14, 2010 DATE(S) OF TESTING: April14‐16, 2010 Report Authorization The test data contained in this report documents the observed testing parameters pertaining to and are relevant for only the sample equipment tested in the agreed upon operational mode(s) and configuration(s) as identified herein. Compliance assessment remains the client’s responsibility. This report may not be used to claim product endorsement by A2LA or any government agencies. This test report has been authorized for release under quality control from CKC Laboratories, Inc. Steve Behm Director of Quality Assurance & Engineering Services CKC Laboratories, Inc. Page 4of 77 Report No.: 90661‐6 Test Facility Information Our laboratories are configured to effectively test a wide variety of product types. CKC utilizes first class test equipment, an…

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