Related Manuals for Linear DXS-80
Summary of Contents for Linear DXS-80
- Page 1 SECTION 1 Class 2 Permissive Change FCC ID: EF4 SST00116 DXS-80 Carbon Monoxide Alarm Transmitter Submitted by: Linear LLC 1950 Camino Vide Roble, Suite 150 Carlsbad, California 92008 760-438-7138 760-438-7043 (FAX) LINEAR LLC FCC ID: EF4 SST00116...
- Page 2 SECTION 1 TABLE OF CONTENTS Product ID: EF4 SST00116 DXS-80 Carbon Monoxide Alarm Transmitter SECTION DESCRIPTION ---------- Table of Contents ---------- Label Facsimile / Statement of Attestation / Summary of Measurements ---------- Equipment Description / Block Diagram ---------- Schematic ----------...
- Page 3 The original vendor of carbon monoxide (CO) detector was unable to provide a suitable detector within a reaonsable time frame. Linear decided to go with a different CO detector head but this entailed a major redesign. The new CO detector is based on the 3 volt operated DXS-73 (EF4 SST00113) smoke alarm transmitter PCB.
- Page 4 Frequency: 315 MHz Request for Authorization of Section 2.925(e) The device for which Linear seeks authority is small in size and has other safety related mandatory UL text. The small size of the product and minimum text size of the UL warnings and cautions does not lend itself to the placement of a label in accord with the FCC and IC labeling requirements.
- Page 5 SECTION 2 LINEAR LLC FCC ID: EF4 SST00116...
- Page 6 SECTION 2 LINEAR LLC FCC ID: EF4 SST00116...
- Page 7 The radio apparatus identified in the application has been subject to all the applicable test conditions specified in FCC Rules Part 15 and all of the requirements of the Standard have been met. Regulatory Compliance Engineer John W. Kuivinen, P.E. ___________________________ Date: __ July 16, 2007 _ LINEAR LLC FCC ID: EF4 SST00116...
- Page 8 5.5 Accessories: NONE 5.6 TX Bandwidth: <0.010 % (See Section 7) 5.7 Equipment Labels: See Section 2 5.8 Manual Disclaimer: See attached draft copy of manual (Section 9) 5.9 Usage Restrictions: Digital Pulse Code Only LINEAR LLC FCC ID: EF4 SST00116...
- Page 9 Complies, C63.4-2004 11.3 Equipment Test Platform: See Section 7 11.4 Measurement Method: Complies, See Section 6 12.0 DC Power Consumption Methods: 13.0 Near Field Measurement for < 30 MHz: 14.0 Test Report Submission: See Attached LINEAR LLC FCC ID: EF4 SST00116...
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Page 10: General Description
SECTION 3 GENERAL DESCRIPTION The DXS-80 is a battery powered, low profile, UL Listed carbon monoxide detector with an RF transmitter. The DXS-80 mates the System Sensor W3-CO detector with a Linear DX coded transmitter. The transmitter is connected to the W3-CO via a four pin header on the detector’s main PCB. - Page 11 The electrochemical gas cell is not user serviceable, and cannot be replaced; at the end of its useful life the entire unit must be replaced. The gas cell cannot be electrically supervised for sensitivity. SENSITIVITY UL 2075 / UL 2034 Compliant. LINEAR LLC FCC ID: EF4 SST00116...
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Page 12: Power On Reset (Por)
LED and piezo will return to the standby mode (within 0.5 seconds max.). If the detector is in a trouble mode and the test switch is depressed, the test switch will be ignored. LINEAR LLC FCC ID: EF4 SST00116... - Page 13 After 7 days, chirps every 45 seconds for 30 days CO End of Life One chirp every 45 seconds 3.12 OUTPUT PIN CONFIGURATION Pin 1 Pin 3 Standby High High Alarm/Test Low Battery High LINEAR LLC FCC ID: EF4 SST00116...
- Page 14 20 second intervals as long as the detector is in alarm. Note: The reset function does not stop these transmissions. Temperature Range: -20°C to 60°C LINEAR LLC FCC ID: EF4 SST00116...
- Page 15 SECTION 3 LINEAR LLC FCC ID: EF4 SST00116...
- Page 16 SECTION 3 LINEAR LLC FCC ID: EF4 SST00116...
- Page 17 SECTION 3 LINEAR LLC FCC ID: EF4 SST00116...
- Page 18 SECTION 4 LINEAR LLC FCC ID: EF4 SST00116...
- Page 19 SECTION 5 LINEAR LLC FCC ID: EF4 SST00116...
- Page 20 SECTION 5 LINEAR LLC FCC ID: EF4 SST00116...
- Page 21 SECTION 5 LINEAR LLC FCC ID: EF4 SST00116...
- Page 22 SECTION 5 LINEAR LLC FCC ID: EF4 SST00116...
- Page 23 SECTION 5 LINEAR LLC FCC ID: EF4 SST00116...
- Page 24 25' RG-214/U Low-loss Coaxial Cable S/N- LIN001 & LIN002 Calibrated: 4/07 Due: 4/08 3' RG-55/U Low-loss Coaxial Cable, calibarated as part of the preamplifiers. Automatically taken into account when used with the above itemized range preamplifiers. LINEAR LLC FCC ID: EF4 SST00116...
- Page 25 Rules and Regulations, this enclosure details the test procedures for certain radio control devices. Testing was performed at a test site located on the property of Linear LLC, 1950 Camino Vida Roble, Suite 150, Carlsbad, California 92008-6517. MEASUREMENT FACILITY DESCRIPTION...
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Page 26: Measurement Procedure
100 KHz/div (may be different when tuning or adjusting display for photographs) Input Attenuator: 10 dB Scan Time: 50 mSec. sweep Reference Level: 0 dBm Display Mode: Log 10 dB/division Video Filter: Scan Mode: Internal Scan Trigger: Auto LINEAR LLC FCC ID: EF4 SST00116... - Page 27 REPORT OF MEASUREMENTS LINEAR LLC FCC ID: EF4 SST00116 Model: DXS-80 Carbon Monoxide Alarm Transmitter The enclosed documents reflect the requirements contained generally within the code of Federal Regulations, Title 47, Parts 2 and 15 as most recently published October 1, 2006 and all other applicable revisions made by the Commission since that time.
- Page 28 SECTION 7 DURATION OF RF TRANSMISSIONS DXS-80 CARBON MONOXIDE ALARM TRANSMITTER This transmitter is normally automatically activated. It is externally triggered using a locally annunciated carbon monoxide alarm. As such, it may be operated continuously by the user (FCC Rules 15.231(a)(4)) during the pendancy of the alarm.
- Page 29 DXS Data Format 17 BITS / DATA WORD + 3 BLANK FRAMES BETWEEN WORDS DATA WORD = 20 X 5000 USEC = 100 MILLISECONDS FOR NOMINAL DATA WORD FRAME TWO DATA WORDS SHOWN ABOVE LINEAR LLC FCC ID: EF4 SST00116...
- Page 30 SECTION 7 INDIVIDUAL DATA PULSES, QUATERNARY ENCODED DATA FORMAT 500 MICRO SECONDS FOR EACH DATA PULSE TIME DURATION FOR EACH PULSE IS FIXED 3 DATA PULSES SHOWN ABOVE LINEAR LLC FCC ID: EF4 SST00116...
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Page 31: Real Time Analysis
A 100 mSec. full word time window is selected with the worst case programmable on time ratio. 8.5 E-3 On time = 8.5 E-2 on time per 100 mSec. time window 100 E-3 Total time 20 log (8.5E-2) = -21.4 dB 20 dB Duty Cycle Ratio (Per FCC Rules) LINEAR LLC FCC ID: EF4 SST00116... - Page 32 SECTION 7 DEVICE: DXS-80 Carbon Monoxide Alarm Transmitter PHOTOGRAPH: Occupied Bandwidth CONDITIONS: Transmitter Fundamental. A1D Modulation - Pulse Position Modulation. Fixed Duty Cycle. SAW oscillator frequency determining element. SPECTRUM ANALYZER CONTROL SETTINGS CENTER FREQUENCY: 315 MHz INPUT ATTENUATION: -10 dB SCAN WIDTH: 2.0 KHz / Div.
- Page 33 SECTION 7 DEVICE: DXS-80 Carbon Monoxide Alarm Transmitter PHOTOGRAPH: Transmitter Spurious Emissions +/-50 MHz of the tuned center freq. Peak of RF signal set to top of screen. CONDITIONS: Transmitter Fundamental. A1D Modulation, SAW tuned frequency. SPECTRUM ANALYZER CONTROL SETTINGS...
- Page 34 SECTION 7 LINEAR LLC FCC ID: EF4 SST00116...
- Page 35 SECTION 7 LINEAR LLC FCC ID: EF4 SST00116...
- Page 36 SECTION 8 FRONT VIEW, DXS-80 CARBON MONOXIDE ALARM LINEAR LLC FCC ID: EF4 SST00116...
- Page 37 SECTION 8 FCC and Canada Regulatory Information in this Area REAR VIEW, DXS-80 CARBON MONOXIDE ALARM FCC / IC LABEL PLACED APPROX. AS SHOWN LINEAR LLC FCC ID: EF4 SST00116...
- Page 38 SECTION 8 TRANSMITTER PCB INTERNAL PCB LAYOUT WITH RF TRANSMITTER LINEAR LLC FCC ID: EF4 SST00116...
- Page 39 SECTION 8 RF TRANSMITTER PCB FRONT AND BACK VIEWS LINEAR LLC FCC ID: EF4 SST00116...
- Page 40 SECTION 8 TEST SETUP - VERTICAL ORIENTATION LINEAR LLC FCC ID: EF4 SST00116...
- Page 41 SECTION 8 TEST SETUP - HORIZONTAL ORIENTATION LINEAR LLC FCC ID: EF4 SST00116...
- Page 42 SECTION 9 LINEAR LLC FCC ID: EF4 SST00116...
- Page 43 SECTION 9 LINEAR LLC FCC ID: EF4 SST00116...