MKZAZY2411BT2.4GHz 802.11b Client Radio DSSS Data Transceiver

AirEZY-2411-BT User Guide Note: To ensure that the product complies with FCC Class B requirements, follow these instruction to install the ferrite bead on your LAN ( RJ45 ) Cable.

TCB RF Exposure Review Procedure Statement FCC ID: MKZAZY2411BT Transmitter Category Device Type Product Category Approval and Review Procedures Used Specific Procedures: V 2.4GHz 802.11b Client Radio DSSS transceiver Part 15 Fixed and Mobile Transmitters Section F SP(1), SP(3), SP(5), SP(7), SP(8) and SP(9) Grant Conditions: The antenna(s) used for this transmitter must be installed to provide a separation distance ofat least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna ortransmitter. End-users and installers must be provided with antenna installation instructions and transmitteroperating conditions for satisfying RF exposure compliance.Grant Note:20,28, SP 1 Conducted output power was measured with power meter as indicated in Page 23 of testreport . The max. conducted output power is 13.59dBm Antenna is permanently attachedwith 2dBi antenna gain. No duty cycle consideration. Device is not identified in 2.1091 ofrules. SP 3 Page 15 of user manual has provided RF exposure warning statement to indicate 20 cmseparation distance between radiated structure and it antenna to end user. SP 5 Operating Frequency band: 2412 – 2462 MHz SP 7 No antenna installation is required by the end user. SP 8 User Manual has provided enough information. SP 9 TCB has reviewed the Grant conditions The Grantee has been informed and confirmed theGrant condition. Reviewed by Mike KuoCompliance Certification ServicesOct. 08,2001

From: Denise Teng Sent: Monday, October 08, 2001 12:27 PM To: Mike Kuo; Steve Cheng Cc: Anne Liang Subject: RE: OTC WIRELESS, INC., FCC ID:MKZAZY2411BT, AN01T1508 Hi Mike, I couldn't add attachment on TCB website. Therefore, pleaes see attachments. 1. Please see attached file for Modificaton Letter. 2. OTC confirmed that they will revised user manual. Please see the email I sent you today. 3. Please see attached files for new Schematic. 4. Uploaded already Thank you for your help. regards, Denise -----Original Message----- From: CERTADM Sent: Friday, September 28, 2001 6:04 PM To: Mike Kuo Subject: OTC WIRELESS, INC., FCC ID:MKZAZY2411BT, AN01T1508 Notice_content ------------- Question #1: Modifications were made during the final compliance tests. Please provide a letter signed by the Grantee to state that the modifications will be incorporated into each unit sold in the United States. Please also descibe what types of modifications were made in the letter. Question #2: Modification #2 Ferrite bead was added to the external RJ45 cable. Ferrite bead is considered as special accessory under 15.27 of FCC rules. Please provide a marketing statement and signed by the Grantee to indicate that clamp-on type of ferrite bead will be sold with the unit. In addition, a brief description to be included in the user manual to instruct the end user how to apply this clamp on type ferrite bead on the RJ45 cable to ensure product compliance. Please provide such marketing statement and revised user manual. Question #3 Schematic diagram can not be read. Please provide a clear copy of schematic diagram Question #4: Otuput power : In accordance to FCC DSSS test procedure, when making conducted output power measurement, the RBW shall be greater than 6dB bandwidth. The bandwidth used in making the measurement is 3MHZ which is less than 6dB bandwidth. If the 3MHz RBW is the limitation of Spectrum Analyzer, please make the measurement with peak power meter and submit revised test report. Best Regards Mike Kuo / TCB Certifier The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information within 60 days of the original e-mail date may result in application dismissal and forfeiture of the filing fee. Also, please note that partial responses increase processing time and should not be submitted. Any questions about the content of this correspondence should be directed to the e-mail address listed below the name of the sender.

PROPOSED FCC ID LABEL AND LOCATION OTC WIRELESS, INC. 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. FCC ID: MKZAZY2411BT FCC ID LABEL

Principle of Operation AirEZY2411-BT (the Device) is a time-division-duplex wireless spread spectrum transceiver for computer data communication applications. The Device functions both as a transmitter and a receiver. The transmitting and the receiving operations are time-domain duplexed. AirEzy2411 -BT employs direct sequence spread spectrum modulation. When operating in the transmitting mode, the Device takes digital data bits to be transmitted from a computer and feeds the bits into a spreader. The spreader employs the Complimentary-Code Keying (CCK). Every 8 bits of data is grouped into a symbol. CCK uses 6 bits from each symbol to select one of 64 complex CCK sequences, each 8-bit long, and uses the remaining two bits to QPSK modulate the sequence. Each bit in the CCK sequence is referred as a chip. The symbol clock rate is1.375 MHz. The chip clock rate is 11 MHz. The Device then modulates the chips onto a radio frequency carrier. By combining CCK with QPSK modulation, a data rate of 11 Mbps is achieved. The transmitting power is less than 0.1 watts. During the receiving mode operation, the Device receives the radio signal from an antenna and demodulates the received signal into a baseband signal corresponding to the chips sent from the transmitting end. The Device then feeds the baseband signal into a despreader which recovers the original information data bits from the chips and sends the digital information to a computer. The data interface between AirEZY2411-BT and the computer is through a conventional Ethernet 10BaseT port. The transmitting computer sends the data to be transmitted through the Ethernet 10BaseT port to AirEZY2411-BT. On the receiving end AirEZY2411-BTsends the received data bits to the computer also through an Ethernet 10BaseT port. AirEZY2411-BT employs the carrier sensing multiple access (CSMA) protocol to facilitate the networking function. Prior to each Device ‘s transmission of the signal, it has to ensure that there is no other transmission already in progress. AirEZY2411-BT employs packet data transmission with CRC to ensure data integrity.

ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART C REQUIREMENT Test Report For 2.4GHz 802.11B CLIENT RADIO DIRECT SEQUENCE SPREAD SPECTRUM DATA TRANSCEIVER FCC ID: MKZAZY2411BT MODEL NO: AirEZY2411-BT REPORT NO: 01U0834-1 AUGUST 15, 2001 Prepared for OTC WIRELESS, INC. 48507 MILMONT DRIVE FREMONT, CA. 94538 USA Prepared by COMPLIANCE CERTIFICATION SERVICES 561F MONTEREY ROAD, MORGAN HILL, CA. 95037, U.S.A. TEL: (408) 463-0885 TABLE OF CONTENTS PAGE 1. VERIFICATION OF COMPLIANCE.........................................................................................................................1 2. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT).....................................................................................2 3. TEST LOCATION.............................................................................................................................................................2 4. LABORATORY ACCREDITATIONS AND LISTINGS.......................................................................................3 5. SUPPORT/ TEST EQUIPMENT...................................................................................................................................4 Support Equipment................................................................................................................................................................4 Test Equipment......................................................................................................................................................................4 I/O Cable Configuration......................................................................................................................................................5 Test Configuration Diagram...............................................................................................................................................6 6. TEST PROCEDURES AND TEST RESULTS..........................................................................................................7 RADIATED EMISSIONS TEST REQUIREMENT: 15.109/15.209...............................................................................................7 MODIFICATIONS MADE...................................................................................................................................................9 Mod-1 : RJ-45 & Analog Ground....................................................................................................................................10 Mod 2 : Ferrite Bead..........................................................................................................................................................11 AC LINE CONDUCTED EMISSIONS TEST REQUIREMENT: 15.207.....................................................................................12 Test Set-up............................................................................................................................................................................12 RADIATE EMISSION TEST REQUIMENT: 15:205/15.247(C)...................................................................................16 RF POWER OUTPUT TEST REQUIREMENT: 15.247(B).........................................................................................................23 DSSS POWER DENSITY TEST REQUIREMENT: 15.247(D)...................................................................................................24 PROCESSING GAIN OF A DSSS TEST REQUIREMENT: 15.247(E).....................................................................................26 7. TEST SETUP PHOTO..........................................................................................................................................................32 RADIATED EMISSSION SETUP PHOTOS...................................................................................................................................32 CONDUCTED EMISSION SETUP PHOTOS...................................................................................................................................33 HI FREQUENCY SETUP PHOTOS................................................................................................................................................34 ANTENNA PORT MEASUREMENT PHOTOS.............................................................................................................................35 ATTACHEMENT: Attachment #1 Proposed FCC ID Label Format Attachment #2 Schematic Diagram and Block Diagram Attachment #3 User Manual REPORT NO.01U0843-1 FCC ID: MKZAZY2411BT DATE:08/22/2001 EUT: 2.4 GHz CLIENT RADIO PAGE NO: 1 0f 39 COMPLIANCE CERTIFICATION SERVICES DOCUMENT NO: CCSUP4010B 561F MONTEREY ROAD, MORGAN HILL CA 95037 TEL:(408)463-0885 FAX:(408)463-0888 This report shall not be reproduced except in full, without the written approval of CCS. 1. VERIFICATION OF COMPLIANCE COMPANY NAME : OTC WIRELESS, INC. 48507 MILMONT DRIVE FREMONT, CA 94538 CONTACT PERSON : MS. YAN ZHENG TELPHONE NO : 510-490-8288 ext.215 EUT DESCRIPTION : 2.4GHz DIRECT SEQUENCE SPREAD SPECTRUM CLIENT RADIO MODEL NAME : AirEZY-2411-BT DATE TESTED : AUGUST 14, 2001 LIMIT APPLY TO: FCC PART 15 SECTION 15.247 TECHNICAL LIMITS TEST RESULT Minimum 6dB Bandwidth@ > 500kHz Passed RF Power Output < 1 Watt Passed Out of Band Measurements Passed DSSS Power Density < 8dBm @ 3kHz bandwidth Passed Processing Gain of a DSSS > 10dB Passed LIMIT APPLY TO: FCC PART 15 SECTION 15.205/SECTION 15.209 Restricted Band of Operation Passed LIMIT APPLY TO: FCC PART 15 SECTION 15.109 Radiated Emission Limits Passed LIMIT APPLY TO: FCC PART 15 SECTION 15.207 AC Line Conducted Emission Passed The above equipment was tested by Compliance Engineering Services Inc. for compliance with the requirements set forth in CFR 47 PART 15 SUBPART C. This said equipment in the configuration described in this report show that maximum emission l…

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REPORT NO.01U0843-1 FCC ID: MKZAZY2411BT DATE:08/22/2001 EUT: 2.4 GHz CLIENT RADIO PAGE NO: 33 OF 37 COMPLIANCE CERTIFICATION SERVICES DOCUMENT NO: CCSUP4010B 561F MONTEREY ROAD, MORGAN HILL CA 95037 TEL:(408)463-0885 FAX:(408)463-0888 This report shall not be reproduced except in full, without the written approval of CCS. 7. TEST SETUP PHOTO RADIATED EMISSSION SETUP PHOTOS REPORT NO.01U0843-1 FCC ID: MKZAZY2411BT DATE:08/22/2001 EUT: 2.4 GHz CLIENT RADIO PAGE NO: 34 OF 37 COMPLIANCE CERTIFICATION SERVICES DOCUMENT NO: CCSUP4010B 561F MONTEREY ROAD, MORGAN HILL CA 95037 TEL:(408)463-0885 FAX:(408)463-0888 This report shall not be reproduced except in full, without the written approval of CCS. CONDUCTED EMISSION SETUP PHOTOS REPORT NO.01U0843-1 FCC ID: MKZAZY2411BT DATE:08/22/2001 EUT: 2.4 GHz CLIENT RADIO PAGE NO: 35 OF 37 COMPLIANCE CERTIFICATION SERVICES DOCUMENT NO: CCSUP4010B 561F MONTEREY ROAD, MORGAN HILL CA 95037 TEL:(408)463-0885 FAX:(408)463-0888 This report shall not be reproduced except in full, without the written approval of CCS. HI FREQUENCY SETUP PHOTOS REPORT NO.01U0843-1 FCC ID: MKZAZY2411BT DATE:08/22/2001 EUT: 2.4 GHz CLIENT RADIO PAGE NO: 36 OF 37 COMPLIANCE CERTIFICATION SERVICES DOCUMENT NO: CCSUP4010B 561F MONTEREY ROAD, MORGAN HILL CA 95037 TEL:(408)463-0885 FAX:(408)463-0888 This report shall not be reproduced except in full, without the written approval of CCS. ANTENNA PORT MEASUREMENT PHOTOS