AB6M2616CT900 MHz Cordless Office Telephone

Northern Telecom 2305 Mission College Blvd. Santa Clara. CA 95054-1591 July 27, 1998 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Rd. Columbia, MD 21046 Reference: FCC ID: AB68M2616CT Dear Sir / Madam: Enclosed is Northern Telecom, Inc.'s application for CERTIFICATION of a Cordless telephone under the FCC’s Rules, Part 15, Subpart C, Paragraph 15.249, operating in the frequency band from 902.4 – 927.6 MHz. This phone is for use with Nortel’s Meridian 1 PABX switching system in an office environment. The M22616CT telephone does not connect directly to the Public Switched Telephone Network (PSTN), and will not operate if connected directly to the PSTN. The Handset and the base RF Radio board are identical to the handset and base RF radio board contained is the presently certified telephone under FCC ID: AB68B16, Date of Grant: 12 Nov. 1997. The receivers in this telephone have been Verified pursuant to the requirements of Part 15, Sections 15.107(a) and 15.109(a) – Radio Receivers & Class B Unintentional radiators. A Request, pursuant to 47 CFR 0.459 of the commission's rules, that the following sections and documents be held CONFIDENTIAL due to their proprietary nature. We consider this leading edge technology developed by Nortel and our partners and being new technology, we do not wish to be disclosed or otherwise made available to our competition. Specifically, the Circuit Schematics, block diagrams and Theory of operation contained in the application. The cordless telephone complies with section 15.214. Enclosed in this application is a discussion of the security coding method used pursuant to 15.214 (d). If you have any questions, please feel free to call me at (408) 565-2046, or e-mail at [email protected]. Sincerely, John Shinn, P.E. Corporate FCC Single Point Contact Homologation Engineering Northern Telecom, Inc.

Report # 1293 M2616CT 900MHz Cordless TelephonePage 1 of 16 FCC Part 15 Report for Nortel M2616CT 900 MHz Cordless Telephone. FCC ID: AB6M2616CT 1.0Exhibit 1 STATEMENT OF TEST RESULTS FCC Paragraph Test RequirementsCompliance (Yes / No) 15.249(a), 15.209 15.205 Transmitter Radiated Emissions & Harmonic EmissionsYes 15.107AC Power Conducted EmissionsYes Report # 1293 M2616CT 900MHz Cordless TelephonePage 2 of 16 2.EXHIBIT 2 GENERAL INFORMATION 2.1Applicant: Northern Telecom, Inc. (NORTEL) 2305 Mission College Blvd. Santa Clara, CA 95054 2.2Manufacturer: Northern Telecom, Inc. (NORTEL) 2305 Mission College Blvd. Santa Clara, CA 95054 2.3Description of Equipment: Product Name:M2616CT Serial Number:Pre-Production Type of Equipment:Cordless Telephone Transmitters Operating Frequency:902.4 – 927.6 MHz Channel Spacing:200 kHz Bandwidth (99% OBW): Handset: 118 kHz, Base: 92.1 kHz Power Rating:Base Transmitter: 48.9 mV/m at 3m Handset Transmitter:46.8 mV/m at 3m Antenna:Permanently attached Emission Designation:140K0F1D For an average case of commercial telephony, the Necessary Bandwidth is calculated as follows: For FM Digital Modulation: Channel Spacing = 200 kHz, D=30 kHz max., K=1, M: 80/2 kb/s Bn = 2M+2D = 2(80/2) + 2(30)(1) = 140 kHz emission designation: 140K0F1D Duty Cycle:Continuous Input Supply:Base: 120 V, 60 Hz Handset: 3.6 Vdc rechargeable Battery Power Supply: Anoma AC Power Adapter, Model AD-8730 AC in: 120 V, 60 HzDC out: 7.5 V Interface Ports:RJ11 Digital Cordless Telephone, M2616CT, consists of the following components: (1)M 2616CT Handset (2)M2616CT Base (3)Anoma AC Adapter, Model AD-8730 2.4Related Submittal(s) / Grant Not applicable Report # 1293 M2616CT 900MHz Cordless TelephonePage 3 of 16 2.5Test Methodology These tests were conducted on a sample of the equipment for the purpose of certification compliance with the Code of Federal Regulations: 47CFR Part 15, Sub-Part C, paragraph 15.249, Low Power Transmitters operating in the Frequency Band 902.4 – 927.6 MHz. Both conducted and radiated emissions measurements were conducted in accordance with American National Standards Institute ANSI C63.4-1992 – American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz. 2.6Test Facility Testing was performed at the following Open Area Test Site: CKC Laboratories, Inc. 1653 Los Viboras Rd. Hollister, CA 95023 The Test was performed on May 22, 1998 on the 3 meter Open Area Test Site. Both Radiated Emissions and Power Line Conducted Emissions were performed on this site. 2.7Units of Measurements Measurements of conducted emissions are reported in units of dB referenced to one microvolt (dBμV). Measurements of radiated emissions are reported in units of dB referenced to one microvolt per meter (dBμV/m) at the distance specified in the report, wherever it is applicable. Report # 1293 M2616CT 900MHz Cordless TelephonePage 4 of 16 3.EXHIBIT 3 SYSTEMS TEST CONFIGURATION 3.1Test System Details The following identifies the EUT, Peripherals, interconnecting cables, and other supporting equipment used during the testing of the EUT. (A)EUT: M2616CT 900 MHz Digital Telephone, Base and Handset. S/N:Pre-production I/O cable:Telephone cord, 4-lead, Non-shielded P/S cable:Non-shielded (B) Peripheral: Meridian 1, Option 11 Key Telephone System S/N:04J0Y6 I/O Cable:Telephone Cord, 4-lead, Non-shielded P/S Cable:Non-shielded M2616 Corded Digital Telephone (Verified) S/N: I/O Cable:Telephone Cord, 4-lead, Non-shielded P/S Cord:None 3.2Block Diagram for Conducted & Radiated Emission Measurement 3.3Compliance with Part 15.214 for M2616CT To AC Anama AC Adapter To AC M2616CT Base Meridian 1, Opt. 11 PBX (Remotely Located) M2316CT Hand Set Report # 1293 M2616CT 900MHz Cordless TelephonePage 5 of 16 The M2616CT telephone set used the following method of cordless voice / data security. The current method complies with Section 15.214(d)(2)(ii), which states “ Provide a fixed code that is continu9ously varied among at least 256 discrete digital codes as each telephone is manufactured.” This is achieved in the M2616CT in the following manner: • As each B07 integrated circuit device is manufactured by the vendor, a 40-bit (5 Byte) ID code is written into the device’s EPROM. Three of these bytes represent a simple sequential number (hexadecimal), 1 byte represents a device vintage code (changes when there is a die or process change), and a 1-byte checksum of the other 4 bytes. One B07 IC is used per M2616CT. • When the Base is first power-up with the handset in the cradle of the base, the base tells the handset what the PIN code is, via the metallic connection in the cradle. • Both voice and data are transmitted across the RF link in packets (bursts) of 120 voice bits plus 40 data bits. For voice transmission with no data, the PIN code is included in the data portion of each burst. For data transmission, the PIN code is included in the first burst of each message (an individual message is allowed to span more than one burst). If the incoming PIN does not match the receiver’s PIN code, the receiver ignores the message (data) or burst (voice). • In addition, an 8-bit encryption mask is applied to each burst. The encryption mask is obtained from the least significant byte of the PIN code. 3.4Photograph for RF Emission Measurements Test Setup for AC Power Line Conducted Emissions Measurements M2616CT Base Unit REFER to FILE: COND-1.JPG and COND-2.JPG Test Setup for Radiated Emissions Measurements M2616CT Base Unit REFER to FILE: RAD-1.JPG Test Setup for Radiated Emissions Measurements M2616CT Hand Set Unit REFER to FILE: RAD-2.JPG 3.5Calculation of Field Strength Report # 1293 M2616CT 900MHz Cordless TelephonePage 6 of 16 The field strength is calculated by adding the calibrated antenna factor and cable loss, and subtracting the Amplifier gain (if any) from the measured reading. The equation is as follows. FS (dB μ V/m…

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