X7W-RSZ485Zigbee wireless RS-485 interface transmitter

ETC Report No.: 10-01-MAS-024-07 Page A1 of A2 FCC ID. :X7W-RSZ485 ANNEX A: EXTERNAL CONSTRUCTION PHOTOS OF EUT 1. Outside view 1 of EUT 2. Outside view 2 of EUT ETC Report No.: 10-01-MAS-024-07 Page A2 of A2 FCC ID. :X7W-RSZ485 3. Outside view 3 of EUT 4. Antenna

ID label & location Model: RSZ485 FCC ID: X7W-RSZ485 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. 59(mm) 25(mm)

ETC Report No.: 10-01-MAS-024-07 Page B1 of B3 FCC ID. :X7W-RSZ485 ANNEX B: INTERNAL CONSTRUCTION PHOTOS OF EUT 1. Inside View 1 of EUT 2. Inside View 2 of EUT ETC Report No.: 10-01-MAS-024-07 Page B2 of B3 FCC ID. :X7W-RSZ485 3. Front view of PCB 4. Rear view of PCB ETC Report No.: 10-01-MAS-024-07 Page B3 of B3 FCC ID. :X7W-RSZ485 5. Module 6. Module

2.4 GHz RF Antenna 5dBi RG316 L: 73mm With SMA Connector Model No.: CAR-ATR-118-XXX Product Type Features 2.4GHz-2.5GHz Antenna with SMA Mount Reverse Polarity SMA Connector Antenna Type WLAN Operating Frequency (GHz) 24-2.5 Coaxial Cable Type RG316 Length 73mm Gain, Max. (dBi) 5 dBi Impedance (Ω) 50 VSWR, Max. 2.0 Antenna Style Rod Antenna Application WLAN

FCC ID: X7W-RSZ485 Sheet 1 of 2 Sheets ETC Report No. : 10-01-MAS-024-07 Rev. No 1.0 MAXIMUM PERMISSIBLE EXPOSURE Standard Applicable Section 15.247 (b)(5) : Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commission's guidelines. See § 1.1307(b)(1) of this Chapter. Section 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency radiation as specified in 1.1307(b) LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (Minutes) (A) Limits for Occupational/control Exposures 300-1500 -- -- F/300 6 1500-100,000 -- -- 5 6 (B) Limits for General Population/Uncontrolled Exposures 300-1500 -- -- F/1500 30 1500-100,000 -- -- 1.0 30 F = Frequency in MHz Calculations Friis transmission formula: P d = ( P out * G ) / ( 4 * pi * r 2 ) Where P d = power density in mW/cm 2 P out = output power to antenna in mW G = gain of antenna in linear scale pi = 3.1416 r = distance between observation point and center of the radiator in cm The limit of P d is 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance where the P d at 20 cm is meet the limit of MPE. FCC ID: X7W-RSZ485 Sheet 2 of 2 Sheets ETC Report No. : 10-01-MAS-024-07 Rev. No 1.0 Result ： ：： ： (Worse case mode) Operation Frequency (MHz) Distance (cm) Maximum Peak Output Power (mW) Antenna Gain (dBi) Power Density (mW/cm 2 ) Limit (mW/cm 2 ) 2405 20 1.122 5.0 0.000705867 1 The P d at 20 cm distance calculated from the Friis transmission formula is mush smaller than the limit requirement 1 mW/cm 2 . The Installation Manual instructs the user to install the device such that it has a separation of at least 20 cm from persons to comply with the FCC's requirements. This separation of 20 cm more than meets the FCC's and Industry Canada RF exposure requirements.

ETC Report No. : 10-01-MAS-024-07 Sheet 1 of 52 Sheets FCC ID. :X7W-RSZ485 Rev. No 1.0 CONFORMANCE TEST REPORT FOR FCC 47 CFR, Part 15 Subpart C Report No.: 10-01-MAS-024-07 Client: Sensing Tek Co., Ltd. Product: Zigbee wireless RS-485 interface transmitter Model: RSZ485 FCC ID: X7W-RSZ485 Manufacturer/supplier: Sensing Tek Co., Ltd. Date test item received: 2010/01/06 Date test campaign completed: 2010/06/28 Date of issue: 2010/06/29 The test result only corresponds to the tested sample. It is not permitted to copy this report, in part or in full, without the permission of the test laboratory. Total number of pages of this test report: 52 pages Total number of pages of photos: External photos 2 pages Internal photos 3 pages Setup photos 3 pages Test Engineer Checked By Approved By Perry Lin James Cheng Joe Hsieh ELECTRONICS TESTING CENTER, TAIWAN NO.8, LANE 29, WENMING RD., LESHAN TSUEN, GUISHAN SHIANG, TAOYUAN COUNTY, TAIWAN 33383, R.O.C.TAIWAN, R.O.C. TEL: (03) 3276170~4 INT: +886-3-3276170~4 FAX: (03) 3276188 INT: +886-3-3276188 ETC Report No. : 10-01-MAS-024-07 Sheet 2 of 52 Sheets FCC ID. :X7W-RSZ485 Rev. No 1.0 Client : Sensing Tek Co., Ltd. Address : 5F, No.19-1 Industry E.4 th Rd., Hsinchu Science Park, Hsin-Chu300, Taiwan, R.O.C. Manufacturer : Sensing Tek Co., Ltd. Address : 5F, No.19-1 Industry E.4 th Rd., Hsinchu Science Park, Hsin-Chu300, Taiwan, R.O.C. EUT : Zigbee wireless RS-485 interface transmitter Trade name : Sensing Tek Model No. : RSZ485 Power Source : 12Vdc Regulations applied : FCC 47 CFR, Part 15 Subpart C (2008) The testing described in this report has been carried out to the best of our knowledge and ability, and our responsibility is limited to the exercise of reasonable care. This certification is not intended to believe the sellers from their legal and/or contractual obligations. The compliance test is only certified for the test equipment and the results of the testing report relate only to the item tested. The compliance test of this report was conducted in accordance with the appropriate standards. It’s not intention to assure the quality and performance of the product. This report shall not be reproduced except in full, without the approval of ETC. This report must not be used by the client to claim product endorsement by NVLAP or any agency of the U.S. Government. Laboratory Introduction: Electronics Testing Center, Taiwan is recognized, filed and mutual recognition arrangement as following: 1 ISO9001: TüV Product Service 2 ISO/IEC 17025: BSMI, CNLA, DGT, NVLAP, CCIBLAC, UL, Compliance 3 Filing: FCC, Industry Canada, VCCI 4 MRA: Australia, Hong Kong, New Zealand, Singapore, USA, Japan, Korea, China, APLAC through TAF 5 FCC Registration Number: 90588, 91094, 91095 h Industry Canada Site Regisitation number: IC 2949A-1 NVLAP Lab Code 200133-0 ETC Report No. : 10-01-MAS-024-07 Sheet 3 of 52 Sheets FCC ID. :X7W-RSZ485 Rev. No 1.0 Table of Contents Page 1 GENERAL INFORMATION ................................................................................................. 5 1.1 Product Description................................................................................................................ 5 1.2 Characteristics of Device ....................................................................................................... 5 1.3 Test Methodology .................................................................................................................. 5 1.4 Test Facility............................................................................................................................ 5 2 PROVISIONS APPLICABLE................................................................................................ 6 2.1 Definition ............................................................................................................................... 6 2.2 Requirement for Compliance .................................................................................................7 2.3 Restricted Bands of Operation ............................................................................................... 9 2.4 Labeling Requirement ............................................................................................................ 9 2.5 User Information .................................................................................................................. 10 3. SYSTEM TEST CONFIGURATION .................................................................................. 11 3.1 Devices for Tested System................................................................................................... 11 4 CONDUCTED EMISSION MEASUREMENT .................................................................. 12 4.1 Standard Applicable ............................................................................................................. 12 4.2 Measurement Procedure....................................................................................................... 12 4.3 Conducted Emission Data .................................................................................................... 13 4.4 Result Data Calculation ....................................................................................................... 15 4.5 Conducted Measurement Equipment ................................................................................... 15 5 ANTENNA REQUIREMENT .............................................................................................. 16 5.1 Standard Applicable ............................................................................................................. 16 5.2 Antenna Construction and Directional Gain ........................................................................ 16 6 EMISSION BANDWIDTH MEASUREMENT .................................................................. 17 6.1 Standard Applicable ..................................................................…

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ETC Report No.: 10-01-MAS-024-07 Sheet 1 of 3 Sheets FCC ID. :X7W-RSZ485 Photos of Radiation Measuring Setup x-axis ETC Report No.: 10-01-MAS-024-07 Sheet 2 of 3 Sheets FCC ID. :X7W-RSZ485 y-axis ETC Report No.: 10-01-MAS-024-07 Sheet 3 of 3 Sheets FCC ID. :X7W-RSZ485 Photos of Conduction Measuring Setup