CFS8DL5800RP

COVER LETTER Dear Mr. Dichoso, You wrote: >Hello Ken, >3b) is just an extrapolation of 3a). >If the device repeats only Ademco devices >and you show that the device complies with >all Ademco devices, then compliance with >specific transmitters is met. >Regards, > Joe Dichoso Here are Exhibits 1-1, 2-1, and 3-1, with expanded explanations, I am also sending you a new exhibit 5-3, and exhibit 5-6, This should show compliance. Regards, Greg Barbato for Ken Addy

>>> From: "Joe Dichoso" <[email protected]> 05/06/2002 04:03 PM >>> To: <[email protected]> >>> cc: >>> Subject: Re: >>> >>> Ken, >>> OK just submit this via the filing. >>> Thanks, >>> Joe >> <[email protected]> 05/06/02 12:36PM >> >> Joe, >> the only device that initiates a data message per 15.231e) >> is the 5883 (FCC ID: CFS8DL5883). The software within the >> 5883 prevents it from sending messages which do not meet the >> silent period requirement of 15.231e). Therefore the initiating >> source of the message, which is repeated by the 5800RP repeater, >> is compliant with the rule, and since the repeater only repeats >> the originating message, then it too meets the requirement. >> regards, >> Ken Addy > [email protected] > To: Ken Addy/ADEMCO/Pittway@PittwayNotes > cc: > 05/03/2002 01:31 PM > Subject: > To: Ken Addy, Alarm Device Manufacturing Company > From: Joe Dichoso [email protected] > FCC Application Processing Branch > Re: FCC ID CFS8DL5800RP > Applicant: Alarm Device Manufacturing Company > Correspondence Reference Number: 22797 > 731 Confirmation Number: EA423053 > > For multiple incoming transmissions from units operating under > 15.231(e), how does the device meet the requirement that a silent > period of 30 times the duration or at least 10 seconds? The device > must have some limitation to ensure this. Please explain.

EXHIBIT 1-1 5800RP FUNCTIONAL DESCRIPTION The 5800RP repeater is a part of a wireless security system for burglary and fire alarm applications. The 5800RP operates on a single frequency, 345MHz, for both transmitted and received messages. The message from a 5800 series security transmitter is received by the 5800RP then retransmitted immediately following completion of the originating message. The total on-air time of the original message plus the repeated message time is less than 5 seconds in accordance with 15.231 a). The 5800RP only repeats messages from Ademco transmitters. The transmitters which send messages with a valid, repeatable message format and their FCC ID numbers are listed in Exhibit 3 with appropriate duty cycle calculations. Note that some Ademco transmitters send "control" messages and are approved per 15.231a), whilst others send "data" and are approved per 15.231e). Therefore the repeater is designed to retransmit at either a high power level when it is repeating a control message, or at a low power when repeating a data message, thus there are two sets of measurements reported in exhibit 5, these are the worst case emissions for the "High Power" or "Low Power" transmissions. The output power level of the repeater is independent of input power level.

EXHIBIT 2-1 5800RP CIRCUIT DESCRIPTION The PCB contains a RF transmitter and receiver circuitry, under the control of a microprocessor. The transmitter is a SAW resonator Colpitts oscillator, Q14, Y6, etc. The transmitter is on-off keyed (AM) modulated by a control signal from the microcontroller U9 which turns PA Q10 on or off via Q11/Q12, thus modulating the output signal. The RF output signal is multiplexed by C85/L15/L5 to the diversity diodes CR7/CR8, and then to the two PCB mounted antennas. The receiver is a superhet with a single intermediate frequency at 10.7MHz. the signal is fed from the PCB mounted antennas via Diodes CR7/CR8 under the control of a microcontroller, U9, and are periodically switched to provide system antenna diversity. Q3 etc. is the low noise amplifier, and FL1 / L15, provide out of band signal rejection. and I.C. U1 contains all of the receiver components, except for the LO. which consists of Q5/Y3, the mixer converts the incoming signal down from 345MHz to 10.7MHz. This IC also includes the required IF gain and detected output. YL1 /YL2 are IF filters. IC's U2/U4/U12 perform video filtering and processing and provide a data signal, to the microprocessor U9. Note that transistor Q13, controls the output power level of the transmitter and is under the control of the microprocessor. If the 5800RP is repeating a low power 15.231e) data message, then Q13 is switched off, and if the 5800RP is repeating a high power 15.231a) control message, then Q13 is switched on.

EXHIBIT 3-1 CFS8DL5800RP Duty Cycle Calculations for 5800RP transmitted messages (Manchester Encoded) Message type, Transmission Time, and Duty Cycle (per 100 ms): For incoming transmissions from the following devices; FCC ID: CFS8DL5801, FCC ID: CFS8DL5802, FCC ID: CFS8DL5802CP, FCC ID: CFS8DL5802MN, FCC ID: CFS8DL5802MN2, FCC ID: CFS8DL5803, FCC ID: CFS8DL5804, FCC ID: CFS8DL5804BD, FCC ID: CFS8DL5806, FCC ID: CFS8DL5806A, FCC ID: CFS8DL5807, FCC ID: CFS8DL5808, FCC ID: CFS8DL5808LP, FCC ID: CFS8DL5809, FCC ID: CFS8DL5810, FCC ID: CFS8DL5814, FCC ID: CFS8DL5816, FCC ID: CFS8DL5816BL, FCC ID: CFS8DL5816MN2, FCC ID: CFS8DL5817, FCC ID: CFS8DL5817CB, FCC ID: CFS8DL5818, FCC ID: CFS8DL5819, FCC ID: CFS8DL5827, FCC ID: CFS8DL5827BD, FCC ID: CFS8DL58450W, FCC ID: CFS8DL5849, FCC ID: CFS8DL5850, FCC ID: CFS8DL5890, FCC ID: CFS8DL5869, FCC ID: CFS8DL5800RL, FCC ID: CFS8DL5800SS1, FCC ID: CFS8DL5800STAT. Message consists of : 6 ID/control bytes + 2 repeater bytes + 16 bit preamble = 80 bits 80 bits * 272 uS = 21.76 mS (21.76 mS/100 mS) * 50% = 10.88% For incoming transmissions from the following devices; FCC ID: CFS8DL5800TM, FCC ID: CFS8DL6128RF, FCC ID: CFS8DL6128RFUL, FCC ID: CFS8DLFA260RF, FCC ID: CFS8DL6150RF, FCC ID: CFS8DLLYNX, FCC ID: CFS8DL5804BD. Message consists of: 7 ID/control bytes + 2 repeater bytes + 16 bit preamble = 88 bits 88 bits * 272 uS = 23.94 mS (23.94 mS/100 mS) * 50% = 11.97% For incoming transmissions from the following device; FCC ID: CFS8DL5804E. Message consists of: 23 preamble bits * 90uS * 50% = 1.04 mS, plus, (66 ID/control bits + 2 repeater bytes = 82 bits * 66.67%) = 14.76ms = (15.8mS/100mS) = 15.8% For incoming transmissions from the following device; FCC ID: CFS8DL5839. Message consists of: 12 ID/control bytes + 2 repeater bytes + 16 bit preamble = 128 bits 128 bits * 272 uS = 34.82 mS (34.82 mS/100 mS) * 50% = 17.41% For incoming transmissions from the following devices; FCC ID: CFS8DLLYNXR, FCC ID: CFS8DL5883 Message consists of: 13 ID/control bytes + 2 repeater bytes + 16 bit preamble = 136 bits 136 bits * 272 uS = 36.99 mS (36.99 mS/100 mS) * 50% = 18.5% For incoming transmissions from the following devices; FCC ID: CFS8DL5883. Message consists of: 53 data bytes + 2 repeater bytes + 16 bit preamble = 456 bits 456 bits * 100 uS = 45.6 mS (45.6 mS/100 mS) * 50% = 22.8% The worst case transmissions, reported in Exhibit 5 are at duty cycle of 18.5% for transmission of control information per 15.231a) and at a duty cycle of 22.8% for transmission of data per 15.231e).

EXHIBIT 5-1 CFS8DL5800RP Report of Measurements. Measurements were made at Ademco 's Measurement Facility at 160 Eileen Way , Syosset , NY 11791 , FCC Registration number : 90421. Measurements were made in accordance with the procedures and reporting requirements of ANSI C63.4-1992. The Test Set-Up (C63.4 section 10.1.3) is shown in the attached drawing. The sequence of testing (C63.4 section 10.1.7) for radiated emissions is as follows: A preliminary scan was conducted with the receiver antenna close to the EUT in order to identify the emission characteristics of the EUT (C63.4 section 8.3.1.1). The antenna and EUT were then placed at the proper separation with the EUT positioned on a non-conducting turntable. The EUT was rotated on the turntable to maximize the received signal strength, then the receiver antenna height was varied to further maximize the received reading. Thereafter, the device was again rotated to a peak output position and the antenna height was re-adjusted for maximum received signal. This procedure was re-iterated until there was no further increase in signal level. This procedure was performed with the EUT rotating in three orthogonal planes (C63.4 section 13.1.4.1) to generate a final maximum reading which is recorded on the radiated emissions result sheet. Similar measurements were made on the receiver to ensure compliance as an unintentional radiator. See Exhibit 6 for list of test equipment (C63.4 section 10.1.4). Note, Spectrum Analyzer resolution bandwidths set as follows; (Video Bandwidth set greater than RBW) - For occupied bandwidth measurements, RBW = 100kHz, (This is in accordance with the minimum RBW allowed by C63.4, which requires RBW greater than 5% of the FCC required occupied bandwidth spec of 0.25% of center frequency). - For radiated emissions below 1 GHz, the RBW = 100kHz. Detector function set to peak. - For radiated emissions above 1 GHz, the RBW = 1MHz. Detector function set to peak. OCCUPIED BANDWIDTH is shown on attached plot. RADIATED EMISSIONS are recorded on attached sheet.

Frequency (MHz) Antenna Polarity ( V-H ) Meter Reading (dB uV) Cable/Amp Factor ( dB ) Antenna Factor (dB/M) Converted Reading ( uV/M ) Duty Cycle ( % ) Corrected Reading ( uV/M ) Limit @ 3 Meter ( uV/M ) 30 H 10.88 729 345 H 75 -1.0 15.9 39355 10.88 4281.8 7291 690 V 34 -1.5 21 668.34 10.88 72.71 729 1035 V 35.3 -1.75 26.0 1420.7 10.88 154.6 500 1380 v 33.2 +22.00 28.0 1479.11 10.88 160.6 500 1725 V 54.8 +22.97 27.4 915.17 10.88 99.6 729 2070 v 56.2 +23.57 28.8 1178.96 10.88 128.3 729 2415 v 50.2 +23.50 28.2 555.90 10.88 60.5 729 2760 H 46.5 +22.84 29.3 444.63 10.88 48.8 729 3105 H 47.5 +23.23 30.7 560.4 10.88 61.0 729 3450 H 45.0 +22.63 31.8 511.11 10.88 55.6 729 4000 H 729 NOV., 22, 2001 GEORGE BLAKELY KEN ADDY DATE:____________________ TESTED BY:_________________________APPROVED BY:________________________ ADEMCO 5800RP (TRANSMITTER) TEST SAMPLE (model): _______________________________________________________________________________ TEST METHOD: ANSI C63.4-1992 TEST SPECIFICATION: FCC PART 15, SUBPART C. NOTES: 1) Fo= 345 MHZ 2) DETECTOR = PEAK. 3) FREQUENCY RANGE SCANNED TO 4 GHz. (METER READING +CABLE /AMP FACTOR +ANTENNA FACTOR) 20 4) CONVERTED READING = 10 5) CORRECTED READING = CONVERTED READING X DUTY CYCLE 6) SIX HIGHEST EMISSIONS RECORDED. ALARM DEVICE MANUFACTURING COMPANY 165 EILEEN WAY CFS8DL5800RP SYOSSET, NY 11791 FCC ID#____________________

Frequency (MHz) Antenna Polarity ( V-H ) Meter Reading (dB uV) Cable/Amp Factor ( dB ) Antenna Factor (dB/M) Converted Reading ( uV/M ) Duty Cycle ( % ) Corrected Reading ( uV/M ) Limit @ 3 Meter ( uV/M ) 30 H 11.97 729 345 H 75 -1.0 15.9 39355 11.97 4710.8 7291 690 V 34 -1.5 21 668.34 11.97 80.0 729 1035 V 35.3 -1.75 26.0 1420.7 11.97 170.0 500 1380 v 33.2 +22.00 28.0 1479.11 11.97 177.0 500 1725 V 54.8 +22.97 27.4 915.17 11.97 109.5 729 2070 v 56.2 +23.57 28.8 1178.96 11.97 141.1 729 2415 v 50.2 +23.50 28.2 555.90 11.97 66.5 729 2760 H 46.5 +22.84 29.3 444.63 11.97 53.2 729 3105 H 47.5 +23.23 30.7 560.4 11.97 67.1 729 3450 H 45.0 +22.63 31.8 511.11 11.97 61.2 729 4000 H 729 NOV., 22, 2001 GEORGE BLAKELY KEN ADDY DATE:____________________ TESTED BY:_________________________APPROVED BY:________________________ ADEMCO 5800RP (TRANSMITTER) TEST SAMPLE (model): _______________________________________________________________________________ TEST METHOD: ANSI C63.4-1992 TEST SPECIFICATION: FCC PART 15, SUBPART C. NOTES: 1) Fo= 345 MHZ 2) DETECTOR = PEAK. 3) FREQUENCY RANGE SCANNED TO 4 GHz. (METER READING +CABLE /AMP FACTOR +ANTENNA FACTOR) 20 4) CONVERTED READING = 10 5) CORRECTED READING = CONVERTED READING X DUTY CYCLE 6) SIX HIGHEST EMISSIONS RECORDED. ALARM DEVICE MANUFACTURING COMPANY 165 EILEEN WAY CFS8DL5800RP SYOSSET, NY 11791 FCC ID#____________________

Frequency (MHz) Antenna Polarity ( V-H ) Meter Reading (dB uV) Cable/Amp Factor ( dB ) Antenna Factor (dB/M) Converted Reading ( uV/M ) Duty Cycle ( % ) Corrected Reading ( uV/M ) Limit @ 3 Meter ( uV/M ) 30 H 18.5 729 345 H 75 -1.0 15.9 39355 18.5 7280.7 7291 690 V 34 -1.5 21 668.34 18.5 123.6 729 1035 V 35.3 -1.75 26.0 1420.7 18.5 262.83 500 1380 v 33.2 +22.00 28.0 1479.11 18.5 273.64 500 1725 V 54.8 +22.97 27.4 915.17 18.5 169.31 729 2070 v 56.2 +23.57 28.8 1178.96 18.5 218.11 729 2415 v 50.2 +23.50 28.2 555.90 18.5 102.84 729 2760 H 46.5 +22.84 29.3 444.63 18.5 82.26 729 3105 H 47.5 +23.23 30.7 560.4 18.5 103.67 729 3450 H 45.0 +22.63 31.8 511.1 18.5 94.55 729 4000 H 729 NOV., 22, 2001 GEORGE BLAKELY KEN ADDY DATE:____________________ TESTED BY:_________________________APPROVED BY:________________________ ADEMCO 5800RP (TRANSMITTER) TEST SAMPLE (model): _______________________________________________________________________________ TEST METHOD: ANSI C63.4-1992 TEST SPECIFICATION: FCC PART 15, SUBPART C. NOTES: 1) Fo= 345 MHZ 2) DETECTOR = PEAK. 3) FREQUENCY RANGE SCANNED TO 4 GHz. (METER READING +CABLE /AMP FACTOR +ANTENNA FACTOR) 20 4) CONVERTED READING = 10 5) CORRECTED READING = CONVERTED READING X DUTY CYCLE 6) SIX HIGHEST EMISSIONS RECORDED. ALARM DEVICE MANUFACTURING COMPANY 165 EILEEN WAY CFS8DL5800RP SYOSSET, NY 11791 FCC ID#____________________

Frequency (MHz) Antenna Polarity ( V-H ) Meter Reading (dB uV) Cable/Amp Factor ( dB ) Antenna Factor (dB/M) Converted Reading ( uV/M ) Duty Cycle ( % ) Corrected Reading ( uV/M ) Limit @ 3 Meter ( uV/M ) 30 H22.8 291 345 V 65.0 -1.0 15.912,445.15 22.8 2,837.5 2,910 690 V 34.0 -1.5 21.0668.34 22.8 152.4 291 1035 H 34.0 -1.75 26.02,546.8 22.8 254.6 291 1380 H 29.5 -2.20 28.04,786.3 22.8 478.6 291 1725 V 57.0 +22.97 27.42,432.2 22.8 243.2 291 2070 H 54.7 +23.57 28.82,741.5 22.8 274.1 291 2415 H 47.0 +23.50 28.22,117.7 22.8 211.8 291 2760 H 43.5 +22.84 29.31,983.022.8 198.3 291 3105 H 43.0 +23.23 30.73,000.0 22.8 300.0 291 3450 H 42.5 +22.63 31.82,995.022.8 299.5 291 4000 H 291 NOV., 22, 2001 GEORGE BLAKELY KEN ADDY DATE:____________________ TESTED BY:_________________________APPROVED BY:________________________ ADEMCO 5800RP (TRANSMITTER) IN LOW POWER TEST SAMPLE (model): _______________________________________________________________________________ TEST METHOD: ANSI C63.4-1992 TEST SPECIFICATION: FCC PART 15, SUBPART C. NOTES: 1) Fo= 345 MHZ 2) DETECTOR = PEAK. 3) FREQUENCY RANGE SCANNED TO 4 GHz. (METER READING +CABLE /AMP FACTOR +ANTENNA FACTOR) 20 4) CONVERTED READING = 10 5) CORRECTED READING = CONVERTED READING X DUTY CYCLE 6) SIX HIGHEST EMISSIONS RECORDED. ALARM DEVICE MANUFACTURING COMPANY 165 EILEEN WAY CFS8DL5800RP SYOSSET, NY 11791 FCC ID#____________________

Frequency (MHz) Antenna Polarity ( V-H ) Meter Reading (dB uV) Cable/Amp Factor ( dB ) Antenna Factor (dB/M) Converted Reading ( uV/M ) Duty Cycle ( % ) Corrected Reading ( uV/M ) Limit @ 3 Meter ( uV/M ) 30 H 729 345 H 75 -1.0 15.9 39355 18.5 7280.7 7291 690 V 34 -1.5 21 668.34 18.5 123.6 729 1035 V 35.3 -1.75 26.0 1420.7 18.5 262.83 500 1380 v 33.2 +22.00 28.0 1479.11 18.5 273.64 500 1725 V 54.8 +22.97 27.4 915.17 18.5 169.31 729 2070 v 56.2 +23.57 28.8 1178.96 18.5 218.11 729 2415 v 50.2 +23.50 28.2 555.90 18.5 102.84 729 2760 H 46.5 +22.84 29.3 444.63 18.5 82.26 729 3105 H 47.5 +23.23 30.7 560.4 18.5 103.67 729 3450 H 45.0 +22.63 31.8 511.11 18.5 94.55 729 4000 H 729 OCT., 22, 2001 GEORGE BLAKELY KEN ADDY DATE:____________________ TESTED BY:_________________________APPROVED BY:________________________ ADEMCO 5800RP (TRANSMITTER) - HIGH POWER TEST SAMPLE (model): _______________________________________________________________________________ TEST METHOD: ANSI C63.4-1992 TEST SPECIFICATION: FCC PART 15, SUBPART C. NOTES: 1) Fo= 345 MHZ 2) DETECTOR = PEAK. 3) FREQUENCY RANGE SCANNED TO 4 GHz. (METER READING +CABLE /AMP FACTOR +ANTENNA FACTOR) 20 4) CONVERTED READING = 10 5) CORRECTED READING = CONVERTED READING X DUTY CYCLE 6) SIX HIGHEST EMISSIONS RECORDED. ALARM DEVICE MANUFACTURING COMPANY 165 EILEEN WAY CFS8DL5800RP SYOSSET, NY 11791 FCC ID#____________________

Frequency (MHz) Antenna Polarity ( V-H ) Meter Reading (dB uV) Cable/Amp Factor ( dB ) Antenna Factor (dB/M) Converted Reading ( uV/M ) Duty Cycle ( % ) Corrected Reading ( uV/M ) Limit @ 3 Meter ( uV/M ) 30 H22.8 291 345 V 65.0 -1.0 15.9 12,445.15 22.8 2837.49 2,910 690 V 34.0 -1.5 21.0 668.34 22.8 152.38 291 1035 H 34.0 -1.75 26.0 1223.21 22.8 278.9 291 1380 H 29.5 -2.20 28.0 966.05 22.8220.26 291 1725 V 57.0 +22.97 27.4 1178.96 22.8226.17 291 2070 H 54.7 +23.57 28.8 992.00 22.8 274.1 291 2415 H 47.0 +23.50 28.2 384.59 22.8 87.69 291 2760 H 43.5 +22.84 29.3 314.77 22.8 71.77 291 3105 H 43.0 +23.23 30.7 333.81 22.8 76.11 291 3450 H 42.5 +22.63 31.8 383.27 22.8 87.38. 291 4000 H 291 NOV., 22, 2001 GEORGE BLAKELY KEN ADDY DATE:____________________ TESTED BY:_________________________APPROVED BY:________________________ ADEMCO 5800RP (TRANSMITTER) IN LOW POWER TEST SAMPLE (model): _______________________________________________________________________________ TEST METHOD: ANSI C63.4-1992 TEST SPECIFICATION: FCC PART 15, SUBPART C. NOTES: 1) Fo= 345 MHZ 2) DETECTOR = PEAK. 3) FREQUENCY RANGE SCANNED TO 4 GHz. (METER READING +CABLE /AMP FACTOR +ANTENNA FACTOR) 20 4) CONVERTED READING = 10 5) CORRECTED READING = CONVERTED READING X DUTY CYCLE 6) SIX HIGHEST EMISSIONS RECORDED. ALARM DEVICE MANUFACTURING COMPANY 165 EILEEN WAY CFS8DL5800RP SYOSSET, NY 11791 FCC ID#____________________