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DCX KeyFob Module 

Operations Manual 

 

DCX_KeyFob_UserManual_1.45_2007Apr2.doc 

     

4

Technical Specifications 

KeyFob Mechanical Design 

 
The KeyFob has six mechanical components. 
 

1.

 

Component Mounted PCB. 

2.

 

Elastomer Buttons. 

3.

 

Battery Clip. 

4.

 

Plastic Housing (Top & Bottom Halves). 

5.

 

Metal Key-Blade. 

6.

 

Key Ring. 

 

RKE Wireless Specifications 

 

Stabilized by a SAW resonator, the resonant frequency is generated by an oscillator 
transmitting on a frequency of 315MHZ, within an accuracy of +/-75kHz.  
 

RKE Transmitter -- General Wireless Specifications 

Parameter Specification 

Units 

Center Frequency, Accuracy, and Stability 

Center Frequency (Carrier) 

315.000 

MHz 

Ac/- 

75 

kHz 

Sta/- 

75 

kHz 

Polarization Ratio 
(between any two axes) 

5 (with linearly polarized receiving 

antenna) 

dB 

 
 

Load Induced Frequency Shift 

+/- 40 

kHz 

 

Operating Stability with Voltage Variation / Low Battery  

Output Power Stability 

dB 

Frequency Shift 

+/- 20 

kHz 

 

Содержание DCX KeyFob

Страница 1: ...365 Passmore Avenue Scarborough Ontario M1V 4B3 TEL 416 321 8822 FAX 416 321 8823 DCX KeyFob Operations Manual Prepared by Sam Baruco Michael Ahrens Yarko Matkiwsky Date April 2 2007 Revision 1 45 ...

Страница 2: ...EYFOB MECHANICAL DESIGN 4 RKE WIRELESS SPECIFICATIONS 4 RKE Transmitter General Wireless Specifications 4 Center Frequency Accuracy and Stability 4 Operating Stability with Voltage Variation Low Battery 4 Output Power Limits and Stability 5 Modulation Index ASK Mode 5 Intra Transmission Stability 5 Carrier Attack Close Time 5 KEYFOB OPERATING TEMPERATURES 5 Physical Device Classification 5 NOMINAL...

Страница 3: ...CX KeyFob Module interfaces with the vehicle WCM Wireless Control Module The KeyFob houses a RKE Remote Keyless Entry transmitter and SKIM Sentry Key Immobilizer Module transceiver SKIM Immobilizer The SKIM Immobilizer Key prevents unauthorized operation of a vehicle by disabling the engine This system utilizes ignition keys which have an embedded electronic chip transponder The vehicle can only b...

Страница 4: ... RKE Transmitter once to unlock To Lock doors Press and release the LOCK button on the RKE Transmitter once to lock Panic Alarm Press and release the PANIC button on the RKE Transmitter once to turn the Panic Alarm On and Off Remote Start Press and release the REMOTE START button on the RKE Transmitter twice to remotely start the vehicle Notes If any of the buttons are pressed and not released wit...

Страница 5: ...he aforementioned part number With the transmitter buttons facing down use a thin coin to pry the two halves of the transmitter apart Use care to ensure that the rubber gasket is not damaged during removal Remove and replace the batteries Avoid touching the new batteries with your fingers Skin oils may cause battery deterioration Do not touch the printed circuit board or the battery terminals that...

Страница 6: ...esonator the resonant frequency is generated by an oscillator transmitting on a frequency of 315MHZ within an accuracy of 75kHz RKE Transmitter General Wireless Specifications Parameter Specification Units Center Frequency Accuracy and Stability Center Frequency Carrier 315 000 MHz Accuracy 75 kHz Stability 75 kHz Polarization Ratio between any two axes 5 with linearly polarized receiving antenna ...

Страница 7: ... dB Modulation Index ASK Mode ON OFF Ratio 40 dB Intra Transmission Stability Output Power 1 bit wise peak power across packet dB Center Frequency 10 kHz Timing 1 Carrier Attack Close Time Attack Time 25 μsec Close Time 50 μsec KeyFob Operating Temperatures Parameter Minimum Maximum Physical Device Classification RKE Feature OpTemp 20o C 70o C SKIM Feature OpTemp 40o C 85o C Storage Temperature Ex...

Страница 8: ...Manual_1 45_2007Apr2 doc 6 Nominal System Range Requirement Reliability Distance Units 100 0 Failure 20 m 90 10 Failure 25 m 75 25 Failure 30 m 25 75 Failure 40 m Null Region Control Range Measurment RKE Response Region Vehicle Control Range Measurement ...

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