
Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.
This package includes (Style of push button and chime may vary from illustration): •Wireless chime •Wireless push button w/battery (Specific models include 2) •Hardware pack This device is for use with 120VAC, 60 Hz. DO NOT EXCEED RECOM- MENDED VOLTAGE. Wireless Mechanical Chime 4.Run wiring to electrical box using approved wiring. Connect the two wires from the house wiring using supplied UL approved wire nuts. Connect the black wire from chime to the black wire from house. Connect the white wire from chime to the white wire from house. 3.TURN OFF HOUSEHOLD POWER. © 2002 DESA International598-1123-00 Figure 2 2.Locate an approved, vertically mounted, single gang, rectangular electrical box in the wall. It is recommended that the chime be located approximately six (6) feet above the floor for best sound travel and appearance. Figure 1 1.Install two lithium type CR1220 3 volt push button batteries (included). Remove back of case by pushing in tab on bottom with a small screwdriver. Make sure batter- ies are oriented properly (see page 3). 5. Mount chime and push button. Attach chime unit to rectangular electrical box us- ing two screws provided. Insert screws into screw holes as shown in Figure 2. Note: Chime can only be mounted in vertical posi- tion. Use arrow on rear of chime unit as a guide. Turn on household power. -2- 598-1123-00 To mount with screws, remove back of case by pushing in tab on bottom with a small screw- driver (see Figure 1). Attach back of case to door jamb or wall. Snap front of push button on. Code and Tune Settings Code Settings Note: Most installations will not require you to change any code set- tings on your chime and push button. WARNING: Turn off power supply at junction box whenever chime is removed from wall. The push button and chime communicate by using a code that can be changed by changing dip switch positions or removing and/or adding jumpers on both the push button and chime. The code is factory set; however, there are 128 selectable codes that allow you to expand your system and prevent outside interference. Other wireless products may cause interference and the sys- tem may not function properly. Follow the instructions below for setting a new code. 1. Turn off power supply at junction box. 2. Remove chime from wall. 3. Open the push button case and locate dip switches/jumpers in push but- ton and on rear of chime. 4. The push button has eight dip switches/jumpers and the chime has seven dip switches/jumpers. Dip switch/jumper positions 1 through 7 are used for setting the code. 5. To change the code, change dip switch positions or add and/or remove jumpers as needed. It is recommended to only change one code position at a time and then check to see if system is functioning properly. Note: Code positions 1 through 7 must be exactly the same for both the push button and chime for this system to function. Note: Unit will come factory set with dip switch locations 5, 6, and 7 in the “ON” position and/or jumpers in locations 5, 6, and 7 (see Figure 4). Figure 3 -3- 598-1123-00 Tune Settings Your wireless chime has different selectable tunes: Ding (one note) and Ding- Dong (two note). The factory setting is for the Ding-Dong tune. This tune can be changed by following the instructions below. •Ding (one note tune) In Push Button Only - Set dip switch 8 to “ON” position or add jumper. •Ding-Dong (two note tune) In Push Button Only - Set dip switch 8 to “OFF” position or remove jumper. Note: All Heath ® /Zenith models have both front and back door tune capabili- ties. We recommend the back door use the Ding tune and the front door use the Ding-Dong tune. Models that include two push buttons will come factory set for front and back doors. Decals on the rear of the push button will indi- cate its setting. Replacing Push Button Batteries Install two lithium type CR1220 3 volt batteries. See diagram inside push but- ton for correct orientation of batteries. Rear of Chime 1 2 3 4 5 6 7 ON Figure 4 1 2 3 4 5 6 7 8 ON C R 1 2 2 0 + Inside Push Button * Code Settings 1- 7 Must Match Both Push Button and Chime Tune Setting (+) Positive Battery Terminal Insert Batteries (+) Positive Side Up Note: Some models might require the use of tweezers to remove and replace the jumpers or a small screwdriver to set dip switches. -4- 598-1123-00 Troubleshooting Chime does not sound: •Make sure push button and chime codes are the same (See pages 2 and 3). •Check orientation of push button and chime batteries (if applicable) (See page 3). •Check charge of push button and chime batteries (if applicable), replace if necessary. •Check AC power to chime. Batteries seem OK, but the chime does not work when installed: •Do not mount chime or push button on metal or near metal studs. This reduces the transmitter range. Use 1/4" to 1/2" (6 to 13 mm) wood shims to move chime or push button off metal surface. •Concrete floors may reduce range. Move chime away from floor. •Try locating chime closer to push button. The range of the wireless chime can vary with location, temperature, and battery condition. Technical Service (Do Not Send Products) If you experience a problem, follow this guide. You may also want to visit our Web site at: www.desatech.com. If the problem persists, call* for assistance at 1-800- 858-8501, 7:30 AM to 4:30 PM Central Time weekdays. You may also write* to: DESA International, Inc. P.O. Box 90004, Bowling Green, KY 42102-9004 * If contacting Technical Service, please have the following information avail- able: Model Number, Date of Purchase, and Place of Purchase. No Service Parts Available for this Product Regulatory Information This device (6442TX, 6506RX) complies with Part 15 of the FCC Rules and RSS-210 of Industry Canada. Operation is subject to the following two con- ditions: (1) this device may not cause harmful interference, and (2) this de- vice must accept any interference received, including interference that may cause undesired operation. The term "IC:" b…
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REF. No: BJ4-64WDB42TX & BJ4-64WDB43TX Transmitter Circuit Block Diagram Power Supply (Two CR1220 Batteries - 6VDC) ENCODER IC (120kHz) Oscillator (315MHz) Antenna (Helical, Internal) 1/14/20036443 & 6442 Block Diagram.xls
FCC ID: BJ4-64WDB42TX IC: 3984A-6442TX 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. DESA International, Inc. Bowling Green, KY 6442TX MADE IN CHINA 390-6442-01A
WELM Saw TX Product Description Heath®/Zenith Model number: SL-6442 & SL-6443 (Prefix will change for other brands) FCC Model designation: 6442TX FCC ID#: BJ4-64WDB42TX IC #: Canada: 3984A-6442TX SL-6442 & SL-6443 Description Model SL-6442 & SL-6443 are wireless transmitters that contain the same PCB and circuit design, which is FCC Model designation WB-SAW-TX, with different plastic case designs, and/or packaging. Two CR-1220 lithium 3-volt batteries power this unit. This input power is internally regulated in the encoder IC T-99. The dipswitch is the selector to control the coding for the T-99 encoder. The output of the encoder chip goes through the oscillator/modulator stage. A SAW locks the frequency, which is tuned for 315M Hz. The encoded signal is then sent through the “helical” antenna mounted on the PCB and the RF output is transmitted into the air. Reference: Brass Transmitter approvals below. (The exact same PCB and components are used for 6442TX and WB-SAW-TX. The only difference is that the WB-SAW-TX uses a Brass housing with a plastic PCB holder. The 6442TX uses a completely plastic housing.) Brass Transmitter FCC Model Designation: WB-SAW-TX FCC ID: BJ4-62WDB93TX IC #: 3984 104 290
Master:PT15-Sub-C-15231 Date: November 12, 2001 Test Report:3W06825 Applicant:Desa International PO Box 90004 2901 Industrial Ave Bowling Green KY 42102 Equipment Under Test:Door Chime Transmitter (EUT)6442TX and 6443TX FCC ID:BJ464WDB42TX In Accordance With:FCC Part 15, Subpart C, 15.231 Tested By:Nemko Canada Inc. 303 River Road, R.R. 5 Ottawa, Ontario K1V 1H2 Authorized By:Glen Westwell, Wireless Technologist Date:27 January 2003 Total Number of Pages:18 Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 2 of 18 Table of Contents Section 1. Summary of Test Results......................................................................................3 Section 2. Equipment Under Test.........................................................................................5 Section 3. Transmission Requirements...............................................................................10 Section 4. Radiated Emissions.............................................................................................12 Section 5. Occupied Bandwidth..........................................................................................15 Section 6. Block Diagrams...................................................................................................17 Section 7.Test Equipment List............................................................................................18 Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 3 of 18 Section 1.Summary of Test Results General All measurements are traceable to national standards. These tests were conducted on a sample of the equipment for the purpose of demonstrating compliance with Part 15, Subpart C. All tests were conducted using measurement procedure ANSI C63.4-1992. Radiated emissions are made on an open area test site. A description of the test facility is on file with the FCC. THIS TEST REPORT RELATES ONLY TO THE ITEM(S) TESTED. THE FOLLOWING DEVIATIONS FROM, ADDITIONS TO, OR EXCLUSIONS FROM THE TEST SPECIFICATIONS HAVE BEEN MADE. See “ Summary of Test Data”. TESTED BY:DATE: ______________________________ Date: 23 January 2003 Russell Grant, Senior Approvals Eng. Nemko Canada Inc. authorizes the above named company to reproduce this report provided it is reproduced in its entirety and for use by the company’s employees only. Any use which a third party makes of this report, or any reliance on or decisions to be made based on it, are the responsibility of such third parties. Nemko Canada Inc. accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. This report applies only to the items tested. Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 4 of 18 Summary Of Test Data Name of TestPara. NumberResults Transmission Requirements15.231(a)Complies Radiated Emissions15.231(b)Complies Occupied Bandwidth15.231(c)Complies Frequency Tolerance15.231(d)NA Periodic Alternate Field Strength Requirements15.231(e)NA Powerline Conducted Emissions15.207NA Note: This device is powered by two 3Vdc lithium cells. Test Conditions: IndoorTemperature:20°C Humidity:20% OutdoorTemperature:15°C Humidity:5% Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 5 of 18 Section 2.Equipment Under Test General Equipment Information Manufacturer: Desa International Equipment 315 MHz Wireless Door Chime Transmitter Model No.: 6442TX and 6443 TX both models use identical circuit board and components but differ only in style of plastic housing. Serial No.: None Date Received In Laboratory: Jan 22, 2003 Nemko Identification No.: 1 Transmit Frequency: 315MHz Fixed Modulation: Pulse Carrier On Off Emission Designator: 83K0L1D Duty Cycle: Worst Case 13 long pulses per packet 20 X Log ( 13 x 0.666 x 4 / 100 ) = -9.2 dB Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 6 of 18 Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 7 of 18 Duty Cycle Worst Case 13 long pulses per packet 20 X Log ( 13 x 0.666 x 4 / 100 ) = -9.2 dB Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 8 of 18 Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 9 of 18 Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 10 of 18 Section 3.Transmission Requirements Para. No.: 15.231(a) Test Performed By: Russell GrantDate of Test: Jan 23, 2003 Minimum Standard:15.231(a) Continuous transmissions such as voice, video or data transmissions are not permitted. 15.231(a)(1) A manually operated transmitter shall employ a switch that will automatically deactivate the transmitter within not more than 5 seconds after being released. 15.231(a)(2) A transmitter activated automatically shall cease transmission within 5 seconds of activation. 15.231(a)(3) Periodic transmissions at regular pre-determined intervals are not permitted. However polling or supervisory transmissions to determine system integrity of transmitters used in security or safety applications are allowed if the periodic rate of transmission does not exceed one transmission of not more than one second duration per hour for each transmitter. 15.231(a)(4) Intentional radiators which are employed for radio control purposes during emergencies involving fire, security, and safety of life, when activated to signal an alarm, may operate during the pendency of the alarm. Test Results:Complies Test Da…
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Nemko Canada Inc.FCC PART 15, SUBPART C, 15.231 PROJECT NO.: 3W06825 EQUIPMENT: Door Chime Transmitter FCC ID BJ464WDB42TX Page 14 of 18 OATS Set Up
| # | Rule Parts | Frequency Range | Power Output |
|---|---|---|---|
| 1 | 15.231 | 315 MHz - 315 MHz | - |

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