NRLM24SXCRN12.4 GHz Half Duplex Transceiver

The user manual will contain a page with the following statement pertaining to the potential interference and the requirement to use shielded cables to connect to the user device. INSTRUCTION TO THE USER This equipment has been tested and found to comply with the limits for a class B 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 radio/TV technician for help. This equipment had been certified to comply with the limits for a Class B intentional radiator device, pursuant to FCC Rules. In order to maintain compliance with FCC regulations, shielded cables must be used with this equipment. Operation with non- approved equipment or unshielded cables is likely to result in interference to radio and TV reception. The user is cautioned that changes and modifications made to the equipment, without the approval of the manufacturer, could void the user’s authority to operate this equipment.

VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 Kyle, The following scope photo shows two of the 2.4 GHz transceivers operating in their normal mode. VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 TEST CONDITIONS The previous waveform shows two of the 2.4 GHz transceivers operating in their intended half-duplex mode. During operation one 2.4 GHz transceiver (The A unit) sends up to 64 bytes of data to a second transceiver (The B unit). The B unit sends back a short acknowledge message to the A unit indicating that the message arrived error free. If the A unit does not receive an acknowledge, it resends the message. This process repeats at a 43.8 millisecond minimum repeat time. The repeat cycle is dependent on baseband system latency issues and is typically much longer than 43.8 milliseconds. I have assumed 43.8 milliseconds because that provides the “worst case” transmit on time duty cycle for the purpose of determining the average power at the transmitter’s output. The first (widest) pulse shows the time that the A units transmits to the B unit. The second (narrow) pulse is the B units acknowledge transmission to the A unit. The transmit duty cycle for the A unit is: 10ms/43.8ms => 22.8% duty cycle @ a 43.8 ms cycle time The transmit duty cycle for the B unit is: 2.0ms/43.8ms => 4.6% duty cycle @ 43.8 ms cycle time The maximum message length ever sent by the system is 64 bytes of data. All shorter messages will have an even lower duty cycle than the values calculated above. As the system reversed the direction of data flow, the B unit will have the longer transmit time and the A unit will reply with the shorter message. The minimum fixed delay time between transmit and receive modes insures that at no time does either the A or B unit transmit duty cycle increase beyond 33% over a 43.8 millisecond period.

VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 2.4 GHZ MHz Half Duplex Block Diagram 2.4 GHZ BANDPASS FILTER T/R SWITCH LNA FM RECEIVER SUBSYSTEM 2.4 GHZ BANDPASS FILTER RECEIVE DATA ANTENNA 130.5 MHZ BANDPASS FILTER VCO MIX RECEIVER LO 2.2705 – 2.3525 GHZ 2.4 GHZ LOWPASS FILTER BUFFER AMPLIFIER VCO TRANSMIT OSC 2.401 – 2.483 GHZ PLL SYSTEM QPSK GENERATOR DIGITAL CONTROLLER HOST INTERFACE I/Q LOWPASS FILTERS I Q RXD TXD T/R 20.0 MHZ CRYSTAL OSCILLATOR RECEIVE PATH TRANSMIT PATH 141.2 MHZ

VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 FCC ID number: The Grantee Code is NRL The FCC ID number for the 2.4 GHz Half Duplex Transceiver is: NRLM24SXCRN1 FCC LABEL VTech Wireless, Inc. 2.4 GHz Half Duplex Transceiver (2401-2483 MHz) FCC ID: NRLM24SXCRN1 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. (2)This device must accept any interference received, including interference that may cause undesired operation.

VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 NON-TECHNICAL DESCRIPTION OF THE UNIT AND ITS OPERATION: The trasnciever is a fully synthesized, half-duplex low power 2.4 GHz transceiver for OEM wireless data communicationn applications. This transceiver is intended for low data rate peer to peer wireless links and wireless networking applications. It has been specifically designed for cost sensitive applications that do not require the overhead of onboard protocol processing. the system level functions of error detection, error correction and network protocol precessing are not handled by the transceiver and must be performed in the host system software. The M24SXCRN1 supports a standard RS-232C voltage level base band serial interface. The transceiver requires externally supplied regulated 5 volt DC power and an antenna. The onboard microcontroller can be commanded to change frequency by the host to avoid interference or frequency contention problems.

VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 M24SXCRN1SCHEMATIC DIAGRAM B VTech Wireless, Inc. B 17Tuesday, September 07, 1999 SizeDocument NumberRev Date:Sheetof TP2TP3TP4TP5TP6TP9TP8TP7TP1 TP19TP18TP11TP10 TP23TP22TP25TP21TP24TP26TP27TP29TP28TP20 TP31TP30TP35TP33TP32TP34 TP41TP40TP45TP46TP43TP42TP44 TP36TP37TP39TP38 VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100 Irvine, California 92606 TEL: 949.752.0312 FAX: 949.752.5014 2400 MHZ HALF DUPLEX RADIO *** CONFIDENTIAL *** Last Revision: 3 September 1999 NOTES: VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 B 2400 MHZ HALF DUPLEX TRANSCEIVER, HOST INTERFACE B 27Tuesday, September 07, 1999 Title SizeDocument NumberRev Date:Sheetof VTech Wireless, Inc. +5V +5V +5V CARDET/ HOSTTXD HOSTRXD XMIT/ SERVICE U1 LT1381CS 1 3 2 4 5 6 7 89 10 11 1213 14 15 16 C1+ C1- V+ C2+ C2- V- TR2O REC2IREC2O TR2IN TR1I REC1OREC1I TR1O GND VCC C4 0.1uF C3 0.1uF C8 0.1uF C1 0.1uF Q1 DTC144EK 1 2 3 R1 10K R4 47K R5 47K R60 R7 0 R8 0 R9 0 C2 0.1uF R3 1 C7 470pF +C6 22 uF/10V +C5 22 uF/10V FB13 BLM11A601S 12 FB16 BLM11A601S 12 FB14 BLM11A601S 12 FB10 BLM11A601S 12 FB2 BLM11A601S 12 C77 22pF C74 22pF C76 22pF C78 22pF C72 22pF C71 22pF FB15 BLM11A601S 12 JP1 TSW-1-07-G-D 12 34 56 78 910 CD RD DTR TD RTS SPARE +5V GND GND NOTE 1* SPARE VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 B 2400 MHZ HALF DUPLEX TRANSCEIVER, CONTROLLER B 37Friday, September 03, 1999 Title SizeDocument NumberRev Date:Sheetof VTech Wireless, Inc. +5V +5V +4V +4V +4V +5V +5V +5V +3.3V SERVICE HOSTTXD PLLEN HOSTRXD XMIT/ TXEN/ VCQDC RSSIPOT VCQDET PLLDAT PLLCLK VCBP1 VCBP2 AUXDAT RFRXD Q I PLLREF R10 4.7K R15 1K R11 4.7K VCC CLK DIN RST* COUT U4 DS1806E-050 20 8 9 10 11 12 19 1 18 2 17 4 3 13 7 15 14 16 5 6 C9 0.1uF C10 0.01uF FB1 BLM11A601S 1 2 U3 PIC16CE624-20/SO 43 136 7 8 9 10 11 12 17 18 1 2 14 5 1615 MCLR*RA4 RB7RB0 RB1 RB2 RB3 RB4 RB5 RB6 RA0 RA1 RA2 RA3 VDD VSS XINXOUT C79 0.01uF R22 100 C15 0.001uF R13 100K U5 NC7ST04M5 24 5 31 C14 330pF C12 0.01uF CR1 FMMV109 C11 330pF Y1 20MHZ R14 1K R19 100 R18 100K C13 0.01uF C28 100pF R17 1.0M C29 0.01uF R20 100 Q6 MMBT3904 2 1 3 U2 TPS3823-50DVBR 1 2 34 5 RESET GND MR/WDI VDD Q2 MMBT3904 1 2 3 VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 B 2400 MHZ HALF DULEX TRANSCEIVER, FRONT END C 47Friday, September 10, 1999 Title SizeDocument NumberRev Date:Sheetof +5V +5V +5V +5V IMOD QMOD FIRST_LO TXEN/ VCBP2 VCBP1 1STIF J1 85MMCX-50-0-1 5 23 4 1 C33 0.01uF R29 10 C38 47pF C34 100pF L6 4.7nH C39 47pF C20 0.01uF U7 UPC2749TB 1 23 4 5 6 L5 100nH FL2 DFC32R44P084LHA 213 OIGND C16 47pF FL1 DFC32R44P084LHA 213 OIGND C43 0.1uF R37 2.7K R36 2.7K R34 2.7K C44 0.1uF R35 2.7K R38 2.7K SUM PHASE SHIFT PD VCC1 VCC2 QR QS IR IS U11 RF2422 11 7 8 16 1 15 26 12 13 14 9 345 10 R30 91 R21 10K C21 100pF C25 100pF FB11 BLM11A601S 1 2 FB3 BLM11A601S 1 2 R24 10KC31 100pF R31 1.0 FB4 BLM11A601S 12 FL3 LFK30-05E2442L084 14 2356 78910 I/O1I/O2 GGGG NCNC GG C35 47pF C37 0.001uF U9 NC7ST04M5 24 5 31 U8 UPG152TA 1 2 34 5 6 OUT1 GND OUT2VC2 IN VC1 U10 UPC2709TB 1 23 4 5 6 R28 10K C22 100pF C64 100pF LO GND IFRF VCC PS U6 UPC2758TB 1 2 34 5 6 R25 180 Q7 NDS352P 2 3 1 R16 RES_TBD C42 0.01uF R32 75 FL6 SAFC130.4MSC10T 2 5 1 3 4 67 8 9 10 GND GND GNDGND I/O GNDGND GND I/0GND C18 0.001uF L1 18nH C26 DNP CR2 FMMV109 C19 DNP L3 4.7nH C40 0.001uF C24 22pF L2 DNP CR3 FMMV109 L4 22nH C23 22pF R39 2.7K C70 33pF C36 0.01uF C46 10uF C32 0.001uF C30 0.001uF R33 75 C45 0.01uF C41 0.001uF U14 UPG152TA 1 2 34 5 6 OUT1 GND OUT2VC2 IN VC1 C17 100pF Q3 NDS352P 2 3 1 R27 10K Fo=2442 MHz BW=84MHz IL=3.2dB max AT=30dB(Fo-250MHz) AT=20dB(Fo-120MHz) VDD = RECEIVE 0.0V = TRANSMIT VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 B 2400 MHZ HALF DUPLEX TRANSCEIVER, IF SECTION B 57Friday, September 03, 1999 Title SizeDocument NumberRev Date:Sheetof +5V +5V +5V +4V 1STIF VCQDET VCQDC CARDET/ RFRXD RSSIPOT SECOND_LO FL5 SFECV10.7MA2-A-TC FL4 SFECV10.7MA2-A-TC L8 150nH L7 1.5uH J2 1 2 U12 TK11340 123 456 <CTRL>GNDBYPASS Vout GND Vin Q5 DTC144EK 1 2 3 Q4 DTC144EK 1 2 3 R44 430 R45 430 R53 4.7K R43 160K R41 10 R40 100K R50 47K R48 100K R47 0 R54 1K R52 47K R49 47K C52 0.001uF C57 0.001uF C53 0.001uF C58 0.001uF C62 0.01uF C56 0.001uF C59 0.01uF C49 82pF C50 0.01uF C48 0.001uF C63 100pF C60 0.001uF C55 0.1uF CR4 FMMV109 IF AMPLIMITER 5PF 1.1V - - + + U13 MC13156FB 31 32 27 1 2622586121314182829302322 16151110975431721 24 19 20 RF1 RF2 LOB M OUT LO EVCC1VEE1VCC2NC1NC2NC3NC4NC5NC6NC7NC8RSSIVEE2 QD OUT QD COIL LD2LD1 LIM IN IF OUT ID2ID1 IF IN DS INHOLD CD DS G DATA C61 0.001uF C54 27pF R46 62K R51 33 R55 27K C47 0.1uF C51 4.7uF R42 150K FB18 BLM11A601S 12 FB17 BLM11A601S 12 QUAD DET TP RSSI TP VTech Group of Companies VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100, Irvine, California 92606-5113, U.S.A. Tel: 949.752.0312 ♦ Fax: 949.752.5014 {Doc}B 2400 MHZ HALF DUPLEX TRANSCEIVER, SYNTHESIZER B 67Friday, September 10, 1999 Title SizeDocument NumberRev Date:Sheetof VTech Wireless, Inc. +5V +3.3V +3.3V +3.3V +3.3V +3.3V PLLDAT PLLREF PLLEN PLLCLK FIRST_LO SECOND_LO AUXDAT C67 0.01uF R57 1 R67 15K R71 33K FB5 BLM11A601S 12 C65 4.7uF C89 100pF C92 0.01uF C91 100pF C93 0.01uF C88 0.01uF C87 100pF C85 100pF C84 100pF C83 100pF U17 UPC2745TB 1 23 4 5 6 FB6 BLM11A601S 1 2 FB9 BLM11A601S 12 FB8 BLM11A601S 12 FB7 BLM11A601S 12 C86 100pF R64 15K C81 0.001uF C75 0.01uF R70 33K RF1 REFERENCE DIVIDER RF1 PHASE DET F(S) RF1 N DIVIDER RF1 VCO RF2 VCO RF2 PHASE DET F(S) N RF2 DIVIDER …

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FCC ID: NRLM24SXCRN1 Report No.: B91007D1 114 OLINDA DRIVE, BREA, CALIFORNIA 92823 PHONE: (714) 579-0500 FAX: (714) 579-1850 Page 1 of 16 FCC PART 15, SUBPART B AND C TEST METHOD: ANSI C63.4-1992 for 2.4 GHz HALF DUPLEX TRANSCEIVER Model: M24SXCRN1 Prepared for VTECH WIRELESS, INC. 1 CORPORATE PARK DRIVE, SUITE 100 IRVINE, CALIFORNIA 92606-5113 Prepared by:_____________________ KYLE FUJIMOTO Approved by:____________________ SCOTT McCUTCHAN COMPATIBLE ELECTRONICS INC. 114 OLINDA DRIVE BREA, CALIFORNIA 92823 (714) 579-0500 DATE: OCTOBER 11, 1999 REPORT APPENDICES TOTAL BODY A B C D PAGES 16 2 2 14 20 54 This report shall not be reproduced except in full, without the written approval of Compatible Electronics. FCC ID: NRLM24SXCRN1 Report No.: B91007D1 114 OLINDA DRIVE, BREA, CALIFORNIA 92823 PHONE: (714) 579-0500 FAX: (714) 579-1850 Page 2 of 16 TABLE OF CONTENTS Section / Title PAGE GENERAL REPORT SUMMARY 4 SUMMARY OF TEST RESULTS 4 1. PURPOSE 5 2. ADMINISTRATIVE DATA 6 2.1 Location of Testing 6 2.2 Traceability Statement 6 2.3 Cognizant Personnel 6 2.4 Date Test Sample was Received 6 2.5 Disposition of the Test Sample 6 2.6 Abbreviations and Acronyms 6 3. APPLICABLE DOCUMENTS 7 4. Description of Test Configuration 8 4.1 Description of Test Configuration - EMI 8 4.1.1 Cable Construction and Termination 9 5.1 EUT and Accessory List 10 5.2 EMI Test Equipment 11 6. TEST SITE DESCRIPTION 12 6.1 Test Facility Description 12 6.2 EUT Mounting, Bonding and Grounding 12 7. Test Procedures 13 7.1 Conducted Emissions Test 13 7.2 Radiated Emissions (Spurious and Harmonics) Test 14 7.3 RF Band Edges 15 8. CONCLUSIONS 16 FCC ID: NRLM24SXCRN1 Report No.: B91007D1 114 OLINDA DRIVE, BREA, CALIFORNIA 92823 PHONE: (714) 579-0500 FAX: (714) 579-1850 Page 3 of 16 LIST OF APPENDICES APPENDIX TITLE A Modifications to the EUT B Additional Models Covered Under This Report C Diagrams, Charts and Photos • Test Setup Diagrams • Radiated Emissions Photos • Antenna and Effective Gain Factors D Data Sheets LIST OF FIGURES FIGURE TITLE 1 Conducted Emissions Test Setup 2 Plot Map and Layout of Radiated Site FCC ID: NRLM24SXCRN1 Report No.: B91007D1 114 OLINDA DRIVE, BREA, CALIFORNIA 92823 PHONE: (714) 579-0500 FAX: (714) 579-1850 Page 4 of 16 GENERAL REPORT SUMMARY This electromagnetic emission test report is generated by Compatible Electronics Inc., which is an independent testing and consulting firm. The test report is based on testing performed by Compatible Electronics personnel according to the measurement procedures described in the test specifications given below and in the "Test Procedures" section of this report. The measurement data and conclusions appearing herein relate only to the sample tested and this report may not be reproduced in any form unless done so in full with the written permission of Compatible Electronics. This report must not be used to claim product endorsement by NVLAP or any other agency of the U.S. Government. Device Tested: 2.4 GHz Half Duplex Transceiver Model: M24SXCRN1 S/N: N/A Product Description: See Expository Statement Modifications: The EUT was not modified during the testing. Manufacturer: VTech Wireless, Inc. 1 Corporate Park Drive, Suite 100 Irvine, California 92606-5113 Test Date: October 7, 1999 IC File # for Canada IC2154-D Test Specifications: EMI requirements FCC Title 47, Part 15 Subpart B and Subpart C, Sections 15.205, 15.207, and 15.249 Test Procedure: ANSI C63.4: 1992 Test Deviations: The test procedure was not deviated from during the testing. SUMMARY OF TEST RESULTS TEST DESCRIPTION RESULTS 1 Conducted RF Emissions, 450 kHz - 30 MHz Complies with the Class B limits of FCC Title 47, Part 15 Subpart B; and Subpart C, section 15.207 2 Radiated RF Emissions, 10 kHz - 25000 MHz Complies with the limits of FCC Title 47, Part 15, Subpart B and Subpart C, sections 15.205 and 15.249 FCC ID: NRLM24SXCRN1 Report No.: B91007D1 114 OLINDA DRIVE, BREA, CALIFORNIA 92823 PHONE: (714) 579-0500 FAX: (714) 579-1850 Page 5 of 16 1. PURPOSE This document is a qualification test report based on the Electromagnetic Interference (EMI) tests performed on the 2.4 GHz Half Duplex Transceiver Model: M24SXCRN1. The EMI measurements were performed according to the measurement procedure described in ANSI C63.4: 1992. The tests were performed in order to determine whether the electromagnetic emissions from the equipment under test, referred to as EUT hereafter, are within the specification limits defined by FCC Title 47, Part 15, Subpart B and Subpart C, sections 15.205, 15.207, and 15.249. FCC ID: NRLM24SXCRN1 Report No.: B91007D1 114 OLINDA DRIVE, BREA, CALIFORNIA 92823 PHONE: (714) 579-0500 FAX: (714) 579-1850 Page 6 of 16 2. ADMINISTRATIVE DATA 2.1 Location of Testing The EMI tests described herein were performed at the test facility of Compatible Electronics, 114 Olinda Drive, Brea, California 92823. 2.2 Traceability Statement The calibration certificates of all test equipment used during the test are on file at the location of the test. The calibration is traceable to the National Institute of Standards and Technology (NIST). 2.3 Cognizant Personnel VTech Wireless, Inc. Terry Flach Engineering Thomas Craft President Compatible Electronics Inc. Kyle Fujimoto Test Engineer Scott McCutchan Lab Manager 2.4 Date Test Sample was Received The test sample was received on October 7, 1999 2.5 Disposition of the Test Sample The test sample was returned to VTech Wireless, Inc. on October 8, 1999. 2.6 Abbreviations and Acronyms The following abbreviations and acronyms may be used in this document. RF Radio Frequency EMI Electromagnetic Interference EUT Equipment Under Test P/N Part Number S/N Serial Number HP Hewlett Packard ITE Information Technology Equipment CML Corrected Meter Limit LISN Line Impedance Stabilization Network FCC ID: NRLM24SXCRN1 Report No.: B91007D1 114 OLINDA DRIVE, BREA, CALIFORNIA 92823 PHONE: (714) 579-0500 FAX: (714) 579-1850 Page 7 of 16 3. APPLICABLE DOCUMENTS The following docu…

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