B5DM526BELTPACK

Page 1 of 3 Telex Model XO-1 Beltpack General Description: The Telex model XO-1 beltpack transceiver is intended for use as a belt worn wireless full duplex intercom radio. Multiple XO-1 beltpacks can be used with a XO-AP access point to communicate with each other over- the-air. The XO-1 uses 802.11 technology to receive / transmit within one channel of the 1 – 11 (2.412 to 2.462 GHz) channels of the 2.4 GHz ISM band. Its operation is license free. The transmit and receive antenna are internal to the beltpack so the unit has a smaller profile and the antennas are protected from possible damage. The XO-1 is powered via an internal Li-Ion battery that will provide up to 8 hours of run time at room temperature. The top panel provides on/off/volume control, channel select buttons and lights, talk button and battery status light. 1. On/Off & Volume Control – Turns the beltpack power on/off and controls headset volume. 2. Battery Light – a. GREEN - Battery OK b. RED - Battery Low (needs charged) 3. Offense Button and Light – Selects the “Offense” intercom channel. The light next to the button will light when selected. 4. Talk Button – When pressed the microphone path is enabled. a. Momentary – Pressed and hold for over ½ second. b. Latch on/off – Tap button and the microphone path is enabled. Tap again to turn off. 5. Defense Button and Light – Selects the “Defense” intercom channel. The light next to the button will light when selected. 1 2 3 4 5 Top View Page 2 of 3 6. Charge Jack – Used to charge the internal battery. Accepts a 5.5mm x 2.5mm plug with the center positive. Must be supplied with a 12VDC regulated power supply with at least a 400mA current capacity. 7. Charge Light . a. RED =Beltpack battery is charging. b. GREEN = Beltpack battery is charged. 8. Headset Connector – Standard 4-pin XLR connector. a. Pin 1 = Microphone GND b. Pin 2 = Microphone HOT c. Pin 3 = Headphone + d. Pin 4 = Headphone – 9. Programming Jack – This RJ-45 jack is used to update programming in the unit if ever needed. Operation Once the XO-AP is running the XO-1 may be switch on at anytime. Normal Start 1. Turn on the unit. The battery light will turn green immediately indicating power. 2. After 20 seconds, the “O” button light will activate indicating the unit has finished booting. 3. Use as normal. Wired Only Start (Programming Only) 1. Press and hold the “X” button. 2. Turn on the unit as holding the “X” button. The battery light will turn green immediately indicating power. 3. When the unit finishes booting the radiocard will be inactive, but the RJ-45 jack will be active. 4. Connect a standard or crossover Ethernet cable to the beltpack. 5. Update flash if needed. Wireless Master Start 1. Press and hold the “O” button. 2. Turn on the unit as holding the “O” button. The battery light will turn green immediately indicating power. 3. When the unit finishes booting the beltpack will be in AP master mode. 4. Use as a normal beltpack, however, the beltpack will be acting as an AP for any other beltpacks in the system. Microphone Gain Adjust Once the unit has booted-up, press and hold the talk button. Then press the “O” button for less gain, the “X” for more gain. Each audible “click” is a microphone gain step. There are 16 levels. Release talk and hit the “O” button to exit microphone adjust mode. 6 7 8 9 Bottom View Page 3 of 3 Specifications Technology............................................. 2.4 GHz, IEEE 802.11b Power.................................................... Internal Li-Ion 7.2V, 2000mAhr, Battery. Typical battery life of 8 hours. Current Draw........................................... 250mA typical with radio card active RF Frequency Range.................................. 802.11 Channels 1 – 11 (2.412 to 2.462GHz) Modulation Technology.............................. DBPSK, DQPSK, CCK Antennas................................................ Internal dipoles RF Output Power (Terminated)..................... 70mW Data rates............................................... 2 and 5.5 Mbps Sensitivity (Worst case).............................. 5.5Mbps 10-5 BER @ -83dBm Frequency Response................................... 500 Hz to 3900 Hz Audio Output (headset)............................... 40mW, 600 Ohms (1% Distortion) Beltpack Size........................................... 5.25L x 3.75W x 1.68H inches Beltpack Weight....................................... 14 oz FCC License............................................ No License Required Regulatory Information This device complies with Part 15 of FCC rules and Canada RSS-210. Operation is subject to the following conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. 3. This device must not be co-located or operated in conjunction with any other antenna or transmitter. To assure continued compliance with FCC regulations, any changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. To assure continued compliance with FCC regulations, any changes or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

Telex Communications, Inc. 8601 E. Cornhusker Hwy Lincoln, NE 68507 402-467-5321 Date: February 9, 2006 To: Federal Communications Commission EQUIPMENT APPROVAL SERVICES P.O. Box 358315 Pittsburgh, PA 15251-5315 To: INDUSTRY CANADA Certification & Engineering Bureau 3701 Carling Avenue, Bldg. 94 P.O. Box 11490, Station “H” Ottawa, Ontario, Canada K2H 8S2 Per: 47 CFR 0.457 and 0.459 Pursuant to Sections 0.457 (d) (1) (ii) and 0.459 of the Commission’s Rules, the applicant hereby requests confidential treatment of some of the information accompanying this application as listed below, i.e. Block Diagram, Schematics, Parts Lists, List of Active Devices, Operational Description These materials contain trade secrets and proprietary information not customarily released to the public and the public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Rule 0.457 (d) (1) (ii) disclosure of this application and all accompanying documentation will not be made before the date of the grant of this application. Sincerely, Charles E. Conner Senior Project Engineer Telex Communications, Inc.

Applicant: Telex Communications, Inc. FCC ID: B5DM526IC ID: 1321A-XO1 Model(s): XO-1 DUT:Body-worn Beltpack Transceiver with 802.11b Freq.:2412-2462 MHz 2006 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the prior written permission of Celltech Labs Inc. Page 1 of 33 Test Report Serial No.: 010406B5D-T711-S15W Report Issue No.: S711-012106-R0 Date(s) of Evaluation: January 17-18, 2006 Report Issue Date: January 21, 2006 Description of Test(s): RF Exposure SARFCC 47 CFR §2.1093 IC RSS-102 Issue 2 Test Report Prepared By: Cheri Frangiadakis Test Report Writer Celltech Labs Inc. Test Report Approved By: Jonathan Hughes General Manager Celltech Labs Inc. RF EXPOSURE EVALUATION SPECIFIC ABSORPTION RATE SAR TEST REPORT FOR TELEX COMMUNICATIONS, INC. BODY-WORN BELTPACK TRANSCEIVER with 802.11b MODEL: XO-1 FCC ID: B5DM526 IC: 1321A-XO1 Test Report Serial Number 010406B5D-T711-S15W Test Report Issue No. S711-012106-R0 Test Lab Celltech Compliance Testing & Engineering Lab (Celltech Labs Inc.) 1955 Moss Court Kelowna, BC Canada V1Y 9L3 Applicant: Telex Communications, Inc. FCC ID: B5DM526IC ID: 1321A-XO1 Model(s): XO-1 DUT:Body-worn Beltpack Transceiver with 802.11b Freq.:2412-2462 MHz 2006 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the prior written permission of Celltech Labs Inc. Page 2 of 33 Test Report Serial No.: 010406B5D-T711-S15W Report Issue No.: S711-012106-R0 Date(s) of Evaluation: January 17-18, 2006 Report Issue Date: January 21, 2006 Description of Test(s): RF Exposure SARFCC 47 CFR §2.1093 IC RSS-102 Issue 2 Celltech Labs Inc. declares under its sole responsibility that this wireless portable device has demonstrated compliance with the Specific Absorption Rate (SAR) RF exposure requirements specified in FCC 47 CFR §2.1093 and Health Canada’s Safety Code 6. The device was tested in accordance with the measurement standards and procedures specified in FCC OET Bulletin 65, Supplement C (Edition 01-01) and Industry Canada RSS-102 Issue 2 for the General Population / Uncontrolled Exposure environment. All measurements were performed in accordance with the SAR system manufacturer recommendations. I attest to the accuracy of data. All measurements were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. This test report shall not be reproduced partially, or in full, without the prior written approval of Celltech Labs Inc. The results and statements contained in this report pertain only to the device(s) evaluated. DECLARATION OF COMPLIANCE SAR RF EXPOSURE EVALUATION Test Lab CELLTECH LABS INC. Testing and Engineering Services 1955 Moss Court Kelowna, B.C. Canada V1Y 9L3 Phone: 250 - 448-7047 Fax: 250 - 448-7046 e-mail: [email protected] web site: www.celltechlabs.com Applicant Information TELEX COMMUNICATIONS, INC. 8601 East Cornhusker Highway PO Box 5579 Lincoln, NE 68505-5579 United States FCC IDENTIFIER: B5DM526 IC IDENTIFIER: 1321A-XO1 Model(s): XO-1 SAR Test Requirement(s): FCC 47 CFR §2.1093; Health Canada Safety Code 6 SAR Test Procedure(s): FCC OET Bulletin 65, Supplement C (Edition 01-01) Industry Canada RSS-102 Issue 2 Device Classification: Digital Transmission System (DTS) Device Description: Body-Worn Beltpack Transceiver with 802.11b Mode(s) of Operation: Direct Sequence Spread Spectrum (DSSS) Transmitter Frequency Range: 2412 - 2462 MHz Max. RF Output Power Tested: 17.5 dBm (56.2 mW) 2437 MHz (Free Space Power) Max. Data Rate(s) Tested: 5.5 Mbps Battery Type(s) Tested: Internal Lithium-ion (7.2 V, 2000 mAh) Antenna Type(s) Tested: Internal Dipole Body-Worn Accessories Tested: Metal Belt-Clip (1.2 cm spacing) Audio Accessories Tested: Headset with Microphone (Model: PH-1) Max. SAR Level(s) Measured: Body-worn: 0.00647 W/kg (Peak SAR measured from Area Scan) Tested By: Sean Johnston Compliance Technologist Celltech Labs Inc. Reviewed By: Spencer Watson Senior Compliance Technologist Celltech Labs Inc. Applicant: Telex Communications, Inc. FCC ID: B5DM526IC ID: 1321A-XO1 Model(s): XO-1 DUT:Body-worn Beltpack Transceiver with 802.11b Freq.:2412-2462 MHz 2006 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the prior written permission of Celltech Labs Inc. Page 3 of 33 Test Report Serial No.: 010406B5D-T711-S15W Report Issue No.: S711-012106-R0 Date(s) of Evaluation: January 17-18, 2006 Report Issue Date: January 21, 2006 Description of Test(s): RF Exposure SARFCC 47 CFR §2.1093 IC RSS-102 Issue 2 TABLE OF CONTENTS 1.0 INTRODUCTION____________________________________________________________________ 4 2.0 DESCRIPTION of DEVICE UNDER TEST (DUT) __________________________________________ 4 3.0 SAR MEASUREMENT SYSTEM _______________________________________________________ 5 4.0 MEASUREMENT SUMMARY _________________________________________________________ 6 5.0 DETAILS OF SAR EVALUATION ______________________________________________________ 7 6.0 EVALUATION PROCEDURES ________________________________________________________ 7 7.0 SYSTEM PERFORMANCE CHECK ____________________________________________________ 8 8.0 SIMULATED EQUIVALENT TISSUES __________________________________________________ 9 9.0 SAR SAFETY LIMITS _______________________________________________________________ 9 10.0 ROBOT SYSTEM SPECIFICATIONS _________________________________________________ 10 11.0 PROBE SPECIFICATION (ET3DV6) __________________________________________________ 11 12.0 SAM PHANTOM V4.0C ____________________________________________________________ 11 13.0 DEVICE HOLDER_________________________________________________________________ 11 14.0 TEST EQUIPMENT LIST ___________________________________________________________ 12 15.0 MEASUREMENT UNCERTAINTIES _____________________________________________…

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Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 10 of 26 Amended 2/20/06 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 Name of Test: Out of Band Emissions g0610044: 2006-Jan-30 Mon 17:41:00 / Updated 2006-Feb-19 Sun 14:30:00 State: 2:High Power Ambient Temperature: 23°C ± 3°C Frequency Tuned, MHz Frequency Emission, MHz Level, dBm Level, dBuV Level, dBc Margin, dB 2412.000000 4823.526667 -67.9 39.1 -58.8 -54.9 2437.000000 4873.613333 -67.8 39.2 -58.7 -54.8 2462.000000 4923.611667 -67.8 39.2 -58.7 -54.8 2412.000000 7235.891667 -62.6 44.4 -53.5 -49.6 2437.000000 7311.083333 -63.1 43.9 -54.0 -50.1 2462.000000 7386.011667 -63.7 43.3 -54.6 -50.7 2412.000000 9647.748333 -66.4 40.6 -57.3 -53.4 2437.000000 9748.096667 -65.9 41.1 -56.8 -52.9 2462.000000 9847.568333 -66.6 40.4 -57.5 -53.6 2412.000000 12059.528333 -66.3 40.7 -57.2 -53.3 2437.000000 12184.640000 -65.9 41.1 -56.8 -52.9 2462.000000 12309.861667 -66.3 40.7 -57.2 -53.3 2412.000000 14472.448333 -62.4 44.6 -53.3 -49.4 2437.000000 14622.166667 -62.3 44.7 -53.2 -49.3 2462.000000 14771.733333 -62.4 44.6 -53.3 -49.4 2412.000000 16883.681667 -63.1 43.9 -54.0 -50.1 2437.000000 17058.876667 -63.9 43.1 -54.8 -50.9 2462.000000 17234.433333 -63.9 43.1 -54.8 -50.9 2412.000000 19295.626667 -63.1 43.9 -54.0 -50.1 2437.000000 19495.550000 -63.8 43.2 -54.7 -50.8 2462.000000 19696.216667 -62.6 44.4 -53.5 -49.6 2412.000000 21707.713333 -62.4 44.6 -53.3 -49.4 2437.000000 21932.586667 -62.6 44.4 -53.5 -49.6 Performed By: Fred Chastain, Test Technician

Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 Date of Report: Date of Submission: February 9, 2006 December 30, 2005 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Telex Communications, Inc. Equipment: XO-1 FCC ID: B5DM526 FCC Rules: 15.247 Gentlemen: On behalf of the Applicant, enclosed please find Application Form 731, Engineering Test Report and all pertinent documentation, the whole for approval of the referenced equipment as shown. Filing fees are attached. We trust the same is in order. Should you need any further information, kindly contact the writer who is authorized to act as agent. Sincerely yours, Michael Schafer, Business Manager enclosure(s) cc: Applicant MCS/del Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 Transmitter Certification of FCC ID: B5DM526 Model: XO-1 to Federal Communications Commission Rule Parts 15.247 Date Of Report: December 30, 2005 On the Behalf of the Applicant: Telex Communications, Inc. At the Request of: P.O. 336058 Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 Attention of: Charles E. Conner, Project Engineer (402) 467-5321; FAX: -3279 E-mail: [email protected] Jim Andersen Email: [email protected] Supervised By: David E. Lee, FCC Compliance Manager Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 List Of Exhibits (FCC Certification (Transmitters) - Revised 9/28/98) Applicant: Telex Communications, Inc. FCC ID: B5DM526 By Applicant: 1. Letter Of Authorization 2. Identification Drawings Label Location of Label Compliance Statement Location of Compliance Statement 3. Documentation: 2.1033(B) (3) User Manual (4) Operational Description (5) Block Diagram (5) Schematic Diagram (7) External Photographs Internal Photographs Parts List Active Devices By M.F.A. Inc. A. Testimonial & Statement of Certification Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 The applicant has been cautioned as to the following: 15.21 Information to User. The users manual or instruction manual for an intentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 15.27(a) Special Accessories. Equipment marketed to a consumer must be capable of complying with the necessary regulations in the configuration in which the equipment is marketed. Where special accessories, such as shielded cables and/or special connectors are required to enable an unintentional or intentional radiator to comply with the emission limits in this part, the equipment must be marketed with, i.e. shipped and sold with, those special accessories. However, in lieu of shipping or packaging the special accessories with the unintentional or intentional radiator, the responsible party may employ other methods of ensuring that the special accessories are provided to the consumer, without additional charge. Information detailing any alternative method used to supply the special accessories for a grant of equipment authorization or retained in the verification records, as appropriate. The party responsible for the equipment, as detailed in § 2.909 of this chapter, shall ensure that these special accessories are provided with the equipment. The instruction manual for such devices shall include appropriate instructions on the first page of text concerned with the installation of the device that these special accessories must be used with the device. It is the responsibility of the user to use the needed special accessories supplied with the equipment. Flom Test Labs 3356 N. San Marcos Place, Suite 107 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 Table Of Contents Rule Description Page . Test Report 1 2.1033(c) General Information Required 2 . Standard Test Conditions and Engineering Practices 5 15.247(b). Maximum Peak Output Power 6 15.247(c). Out of Band Emissions 9 15.205. Restricted Bands Of Operation 11 15.247(a)(2). Allowed Occupied Bandwidth 15 15.207 A/C Powerline Conducted Emissions 21 2.202(g) Necessary Bandwidth and Emission Bandwidth 26 Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 1 of 26 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 Required information per ISO/IEC Guide 25-1990, paragraph 13.2: a) Test Report b) Laboratory: (FCC: 31040/SIT) (Canada: IC 2044) M. Flom Associates, Inc. 3356 N. San Marcos Place, Suite 107 Chandler, AZ 85225 c) Report Number: d05c0045 d) Client: Telex Communications, Inc. 8601 E. Cornhusker Highway P.O. Box 5579 Lincoln, NE 68505-5579 e) Identification: XO-1 FCC ID: B5DM526 Description: f) EUT Condition: Not required unless specified in individual tests. g) Report Date: December 30, 2005 EUT Received: December 27, 2005 h, j, k): As indicated in individual tests. i) Sampling method: No sampling procedure used. l) Uncertainty: In accordance with MFA internal quality manual. m) Supervised by: David E. Lee, FCC Compliance Manager n) Results: The results presented in this report relate only to the item tested. o) Reproduction: This report must not be reproduced, except in full, without written permission from this laboratory. Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 2 of 26 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 List Of General Information Required For Certificati…

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Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 8 of 26 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 Test Setup: Radiated Emissions State: State: Flom Test Labs 3356 N. San Marcos Place, Suite 107 Page 23 of 26 Chandler, Arizona 85225-7176 FCC ID: B5DM526 (866) 311-3268 phone, (480) 926-3598 fax MFA p05c0013, d05c0045 State: State: