CH8AR210

SuperVision® System Manual CAP Rate-Adaptive Ethernet DSL Remote Unit A90-36R210W00 Part # 030-1010xx A90 Rev. P2 , 07/01/98 1998, Westell, Inc . Release 1.2 Printed in the USA 10BT-R.DOC 1 S-0110P-A C AP R ATE -A DAPTIVE E THERNET DSL R EMOTE U NIT (ATU-R) A90-36R210 SuperVision® System Manual CAP Rate-Adaptive Ethernet DSL Remote Unit A90-36R210W00 Part # 030-1010xx A90 Rev. P2 , 07/01/98 1998, Westell, Inc . Release 1.2 Printed in the USA 10BT-R.DOC 2 SuperVision® System Manual CAP Rate-Adaptive Ethernet DSL Remote Unit A90-36R210W00 Part # 030-1010xx A90 Rev. P2 , 07/01/98 1998, Westell, Inc . Release 1.2 Printed in the USA 10BT-R.DOC i CONTENTS CAP RATE-ADAPTIVE ETHERNET DSL REMOTE UNIT WITH FLASH (ATU-R)...................................................... 1 1. G ENERAL D ESCRIPTION ........................................................................................................................ 1 2. D OCUMENT C ONTROL .......................................................................................................................... 1 3. B UILD C ONTROL ................................................................................................................................... 1 4. C OMPATIBILITY ..................................................................................................................................... 2 5. I NSPECTION .......................................................................................................................................... 2 6. P RODUCT O VERVIEW ............................................................................................................................ 2 6.1 Features and Functions ................................................................................................................. 2 6.2 Transmission ................................................................................................................................. 3 6.3 Configuration ................................................................................................................................. 4 6.4 ATU-R Indicators........................................................................................................................... 6 6.5 Interfaces and Connectors ............................................................................................................ 7 6.6 Signals ........................................................................................................................................... 9 6.7 10BaseT Ethernet DSL Diagnostics.............................................................................................. 9 6.8 System Status and Performance Management........................................................................... 10 7. B LOCK D IAGRAM ................................................................................................................................. 10 8. O PERATION ........................................................................................................................................ 11 9. I NSTALLATION ..................................................................................................................................... 11 9.1 Unpacking .................................................................................................................................... 11 9.2 Installation Criteria ....................................................................................................................... 12 9.3 ATU-R Wiring .............................................................................................................................. 12 9.3.1 Installation with an Internal POTS Splitter........................................................................... 13 9.3.2 Installation without an Internal POTS Splitter..................................................................... 14 10. M AINTENANCE .................................................................................................................................. 15 10.1 Troubleshooting and Repair ...................................................................................................... 15 10.2 Visual Inspection........................................................................................................................ 15 11. S PECIFICAT IONS ...............................................................................................................................16 INDEX........................................................................................................................................................................................ 17 FCC NOTICE:........................................................................................................................................ 18 SuperVision® System Manual CAP Rate-Adaptive Ethernet DSL Remote Unit A90-36R210W00 Part # 030-1010xx A90 Rev. P2 , 07/01/98 1998, Westell, Inc . Release 1.2 Printed in the USA 10BT-R.DOC ii SuperVision® System Manual CAP Rate-Adaptive Ethernet DSL Remote Unit A90-36R210W00 Part # 030-1010xx A90 Rev. P2 , 07/01/98 1998, Westell, Inc . Release 1.2 Printed in the USA 10BT-R.DOC 1 CAP RATE-ADAPTIVE ETHERNET DSL REMOTE UNIT WITH FLASH (ATU-R) 1. General Description The Ethernet DSL remote unit (ATU-R) (A90-36R210W00) terminates a DSL line at the subscriber location. The 10BaseT Ethernet DSL system uses Carrierless Amplitude Phase Modulation (CAP) transmission to provide reliable DSL transport over the existing copper cable infrastructure. The ATU-R separates CAP high-speed downstream and lower-speed upstream channel data and POTS (Plain Old Telephone Service) signals which have been transported via twisted-pair copper wires between an access line module at the central office and the subscriber premises. The ATU-R provides an industry standard 10BaseT interface to the cust…

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Page 1 FCC ID: CH8AR210 D2ACLK 1.37MHz A2DCLK 4.09MHz CSCLK 4.09MHz 12 BIT DATA BUS 20MHz CRYSTAL 8MHz CRYSTAL PISA_CLK 16MHz CLK32 32MHz UTXCLK 4MHz URXCLK 4MHz USTRM_CLK 91KHz DSTRM_CLK 640KHz GT3000 ANALOG SIGNAL PROCESSOR U500 GT2110 U602 DIGITAL FILTER AND INTERFACE PROGRAMMABLE GATE ARRAY U301 10K100 PS7900 U101 MICROPROCESSOR CS8900 U400 ETHERNET CONTROLLER (10 BASE-T) U201 1 MEG x 32 DRAM U202 1 MEG x 16 FLASH MEMORY 32 BIT ADDRESS/DATA BUS 34.56MHz CRYSTAL OSCILLATOR 34.56MHz 10 BASE-T INTERFACE ADSL OUTPUT (TO PSTN) ANALOG DRIVER CIRCUITRY A90-36R210 BLOCK DIAGRAM 6/30/98 MJF

Page 1 FCC ID: CH8AR210 D2ACLK 1.37MHz A2DCLK 4.09MHz CSCLK 4.09MHz 12 BIT DATA BUS 20MHz CRYSTAL 8MHz CRYSTAL PISA_CLK 16MHz CLK32 32MHz UTXCLK 4MHz URXCLK 4MHz USTRM_CLK 91KHz DSTRM_CLK 640KHz GT3000 ANALOG SIGNAL PROCESSOR U500 GT2110 U602 DIGITAL FILTER AND INTERFACE PROGRAMMABLE GATE ARRAY U301 10K100 PS7900 U101 MICROPROCESSOR CS8900 U400 ETHERNET CONTROLLER (10 BASE-T) U201 1 MEG x 32 DRAM U202 1 MEG x 16 FLASH MEMORY 32 BIT ADDRESS/DATA BUS 34.56MHz CRYSTAL OSCILLATOR 34.56MHz 10 BASE-T INTERFACE ADSL OUTPUT (TO PSTN) ANALOG DRIVER CIRCUITRY A90-36R210 BLOCK DIAGRAM 6/30/98 MJF

Page 1 FCC ID: CH8AR210 D2ACLK 1.37MHz A2DCLK 4.09MHz CSCLK 4.09MHz 12 BIT DATA BUS 20MHz CRYSTAL 8MHz CRYSTAL PISA_CLK 16MHz CLK32 32MHz UTXCLK 4MHz URXCLK 4MHz USTRM_CLK 91KHz DSTRM_CLK 640KHz GT3000 ANALOG SIGNAL PROCESSOR U500 GT2110 U602 DIGITAL FILTER AND INTERFACE PROGRAMMABLE GATE ARRAY U301 10K100 PS7900 U101 MICROPROCESSOR CS8900 U400 ETHERNET CONTROLLER (10 BASE-T) U201 1 MEG x 32 DRAM U202 1 MEG x 16 FLASH MEMORY 32 BIT ADDRESS/DATA BUS 34.56MHz CRYSTAL OSCILLATOR 34.56MHz 10 BASE-T INTERFACE ADSL OUTPUT (TO PSTN) ANALOG DRIVER CIRCUITRY A90-36R210 BLOCK DIAGRAM 6/30/98 MJF

Page 1 Letter of AuthorizationFCC ID: CH8AR210

Page1 FCC ID: CH8AR210 Top of EUT showing AC-AC power supply Rear of EUT showing Connectors

Page1 FCC ID: CH8AR210 Top of EUT showing AC-AC power supply Rear of EUT showing Connectors

Page1 FCC ID: CH8AR210 Top of EUT showing AC-AC power supply Rear of EUT showing Connectors

Page 1 Product Labeling The FCC ID label is made of coated polyester with pressure sensitive permanent adhesive. The compliance statement is permanently engraved on the rear of the EUT. The compliance statement is also listed in the user’s manual. The Compliance statement is placed on the rear of the EUT as shown in the following figure. FCC/UL ID Label Size: 4.7 x 1.8 cm Color: White background with Black letters Label Placement The compliance statement is 2.4 x 3.5 cm Bottom of EUT Not to Scale This device complies with Part 15 of the FCC Class B 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 FCC ID: CH8AR210 FCC ID: CH8AR210 Page 2 Scale Drawing of Bottom of EUT Showing Label Placement Scale = 1/2 FCC ID Compliance Statement

Page 1 FCC ID: CH8AR210 Component Side of Circuit Board Foil Side of Circuit Board Page 2 FCC ID: CH8AR210 Inside covers of Enclosure; Shows conductive coating.

Page 1 FCC ID: CH8AR210 The EUT is a model A90-36R210, Rate Adaptive ADSL Modem With a 10 BASE-T Interface The A90-36R210 is a high speed digital modem. It connects to the Pubic Switched Telephone Network (PSTN), using Carrierless Amplitude and Phase modulation (CAP), and provides a 10BASE-T (ETHERNET) interface to a users personal computer. The unit was tested by Radiometrics Midwest corporation, and uses a Cirrus Logic’s PS7900 microprocessor design by Avanced Telecommunications Modules Limited (ATML).

Page 1RP-3808A MEASUREMENT/TECHNICAL REPORT WESTELL, INC. Model A90-36R210 FCC ID: CH8AR210 APPLICATION FOR CERTIFICATION RF Emission Measurements Performed For Determination of Compliance with the US Code of Federal Regulations Title 47, Chapter I, FCC Part 15 Subpart B As Required for Certification for Unintentional Radiators Issue Date: July 2, 1998 This report concerns: Original grant Equipment type: Rate Adaptive, ADSL Modem Transition Rules per 15.37 are not requested. Report Prepared by: Joseph Strzelecki Senior EMC Engineer NARTE EMC-000877-NE Application Approved by: Chris W. Carlson Director of Engineering NARTE EMC-000921-NE Radiometrics Midwest Corporation 12 East Devonwood Romeoville, IL 60446 Telephone: (815) 293-0772 FAX: (815) 293-0820 FCC ID: CH8AR210 Page 2RP-3808A Table of Contents 1.0 General Information ........................................................................................................... 3 1.1 Product Description ........................................................................................................3 1.2 Related Submittals .........................................................................................................3 1.4 Tested System Details .................................................................................................... 3 1.5 Test Methodology ...........................................................................................................4 1.6 Test Facility .................................................................................................................... 4 1.7 Test Equipment ..............................................................................................................4 2.0 System Test Configuration ................................................................................................. 4 2.1 Test System and Justification ......................................................................................... 4 2.1.1 Support Equipment......................................................................................................... 5 2.2 EUT Exercise Software ................................................................................................... 5 2.3 Special Accessories........................................................................................................5 2.4 Equipment Modifications................................................................................................. 5 Figure 2.1 Configuration of Tested System ........................................................................... 6 3.0 Conducted Emission Data.................................................................................................. 7 4.0 Radiated Emissions Data ................................................................................................... 8 4.1 Field Strength Calculation .............................................................................................. 9 FCC ID: CH8AR210 Page 3RP-3808A 1.0 General Information 1.1 Product Description The Model A90-36R210 (referred to as the EUT in this report) is a Rate Adaptive, ADSL modem. The EUT has an external transformer power supply manufactured by Electro-Mech Co. for Westell as a Westell number 6024-08. The EUT is a high speed digital modem. It connects to the Pubic Switched Telephone Network (PSTN), using Carrierless Amplitude and Phase modulation (CAP), and provides a 10BASE-T (ETHERNET) interface to a users personal computer. 1.2 Related Submittals Westell is not submitting any other submittals related to the EUT. 1.4 Tested System Details The FCC ID's for all equipment, plus descriptions of all cables used in the tested system which have grants, are: Model &Manufacturer &Cable Serial NumberFCC IDDescriptionDescriptions ---------------------------------------------------------------------------------------------------------------------------- A90-36R210 CH8AR210WestellUnshielded DSL Cbl, 10 m (EUT) S/N: N/AADSL ModemUnshielded 10BT Cbl, 4 m Pwr Supply cord 2m from X-former to EUT N10-EPXISA2WEJMN10-EPXISA2W IntelUnshielded 10BT Cbl, 4 m S/N: N/ANetwork Interface Card 1782GSS933001ViewsonicShielded data cbl, 1.8 m S/N: 5334514144Monitor1.9 m Unshd PWR Cbl P100PCIKPV-M54TR1-MTMicronUnshielded, 2 m S/N 372698-002ComputerPower Cord RT101+AQ6-MTN4XZ15Micron2 m, Integral Data Cbl S/N 52652191Keyboard NX-1001B6DZ150LStar PrinterShielded data cable S/N: 5100105423901.8 m; w/ metal shells 1.9 m Unshd PWR Cbl P/N: 92841C3KKMP1Microsoft Mouse2 m, Integral Data Cbl S/N: 00750774 FCC ID: CH8AR210 Page 4RP-3808A 1.5 Test Methodology The test procedures used are in accordance with the ANSI document C63.4-1992, (July 17, 1992) "Methods of Measurement of Radio Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz". The specific procedures are described herein. Radiated testing was performed at an antenna to EUT distance of 3 meters. 1.6 Test Facility The open area test site used to collect the radiated data is located on 8625 Helmar Road in Newark, Illinois. The open field test site has a metal ground screen. Details of the site characteristics are on file with the FCC. Conducted emission measurements and preliminary radiated emission scans were performed in shielded enclosure “B” at Radiometrics' Romeoville, Illinois EMI test lab. These sites have been fully described in a report and accepted by the FCC in a letter dated October 1, 1996 (31040/SIT 1300F2). Conducted emission measurements were performed using an Electrometrics Model FCC/VDE 50/2 Line Impedance Stabilization Network (LISN) as the pick-up device. This device is constructed in accordance with the circuit diagram provided in Figure 3 of ANSI document C63.4-1992. 1.7 Test Equipment Radiated emission measurements were performed with linearly polarized broadband antennas. The results obtained with these antennas can be correlated with results obtained w…

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