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31-3MDR00HB

Page 6

Draft

List of Abbreviations

amp

alternating current

ACARS

aircraft communications, addressing
and reporting system

amplitude modulation

BIT

built-in test

celsius

decibel

dBm

power ratio in decibel (dB) referenced
to one milliwatt (mW)

direct current

ESD

electrostatic sensitive devices

Fig

figure

hertz

kilogramme

kHz

kilohertz

LCD

liquid crystal display

metre

milliamp

MDR

multimode digital radio

MHz

megahertz

millimetre

milli-second

milliwatt

power amplifier

ppm

parts per million

PTT

press to transmit

RFPA

radio frequency power amplifier

second

volt

VDL

VHF data link

VHF

very high frequency

VSWR

voltage standing wave ratio

watt

Содержание 6525

Страница 1: ...6525 Multimode Digital Radio User Documentation Draft...

Страница 2: ...78 345434 From outside UK 44 1778 345434 Fax From UK 01778 342877 From outside UK 44 1778 342877 www parkairsystems com Errata Any errors found in this handbook are promulgated through the Park Air FT...

Страница 3: ...s Cautions A caution is used to indicate possible danger to the equipment Indicates electrical danger to personnel WARNING Indicates a hazardous material WARNING Indicates a non ionizing radiation haz...

Страница 4: ...Safety Code 6 for RF and microwave exposed workers For persons not classed as RF and microwave workers and including the general public the limit is 2 W m2 0 2 mW cm2 which increases the minimum safe...

Страница 5: ...al This product is covered by the European Directive 2002 96 EC It must not be disposed of in domestic waste Disposal should be made using designated collection facilities appointed by the government...

Страница 6: ...e milliwatt mW dc direct current ESD electrostatic sensitive devices Fig figure Hz hertz kg kilogramme kHz kilohertz LCD liquid crystal display m metre mA milliamp MDR multimode digital radio MHz mega...

Страница 7: ...36 RoHS 2002 95 EC FCC ID C8L 6525MDR FCC Industry Canada Statement This device has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules Th...

Страница 8: ...31 3MDR00HB Page 8 Draft Intentionally Blank...

Страница 9: ...nnector 19 Headset Microphone Diagnostics Connector 19 Switching On and Setting the Operating Parameters 21 Using the Scroll Select Switch 21 Screen Protocol 21 Switching On 22 Selecting an Operating...

Страница 10: ...aintenance Policy 50 Unscheduled Maintenance 50 Scheduled Maintenance 50 Cleaning the Equipment 50 Security of External Connections 50 Checking the MDR s Internal Reference Frequency 51 Initiating an...

Страница 11: ...Draft Overview...

Страница 12: ...as a subsystem of the Aircraft Communications Addressing and Reporting System ACARS and the VHF Data Link VDL air ground communication systems Fig 1 6525 Multimode Digital Radio MDR Operating Modes O...

Страница 13: ...el Software Configuration The part order number is TBD customer specific This number encompasses the hardware part number detailed above fitted with the software detailed below Any two of the four ava...

Страница 14: ...Intentionally Blank...

Страница 15: ...Draft Specification...

Страница 16: ...and Weight The dimensions and weight of the MDR are Width 483 mm 19 inches Depth 450 mm 17 8 inches Height 88 9 mm 3 5 inches Weight 12 5 kg 27 5 pounds Input Supply Requirement ac input supply Betwee...

Страница 17: ...Draft Operation...

Страница 18: ...om its setting by more than 1 dB but not more than 3 dB The supply volts falls below 21 6 V The RF PA temperature has exceeded 80oC Any other BIT condition results in an alarm When detected the Alarm...

Страница 19: ...icrophone Diagnostics Connector A dual purpose connector that allows either a headset microphone or a PC to be connected to the MDR The connector is a 7 pin self locking DIN socket the pin out is show...

Страница 20: ...n require the use of this port Table 2 Headset Microphone Diagnostics Connector PC Connections Pin Number Signal Input or Output Description 2 Transmit data Output RS232 115200 baud 8 data bits 1 stop...

Страница 21: ...ise to scroll through fields from left to right and from top to bottom The switch is turned anticlockwise to scroll through fields from right to left and from bottom to top The switch is pressed to ma...

Страница 22: ...AM Analogue ACARS F r e q 1 1 8 0 0 0 M H z M o d e A M D A C A R S P w r l l l l l l l l l l Main Screen for AM Digital ACARS When switched on the MDR initialises which takes approximately five secon...

Страница 23: ...d press the Switch to display the Control screen Turn the Switch until Settings is highlighted Then press the Switch to display the Settings screen Turn the Switch until the current Mode is highlighte...

Страница 24: ...t t i n g s E x i t Control Screen F r e q 1 1 8 0 0 0 M H z C a n c e l O K Frequency Screen With the Main screen displayed press the Switch to display the Control screen Turn the Switch until Frequ...

Страница 25: ...Turn the Switch until Channel is highlighted Then press the Switch to display the Channel screen Turn the Switch to highlight the channel number and press the Switch Turn the switch to select the requ...

Страница 26: ...E x i t Channel Screen With the Main screen displayed press the Switch to display the Control screen Turn the Switch until Channel is highlighted Then press the Switch to display the Channel screen Tu...

Страница 27: ...mple MDR set to transmit and receive only those frequencies in the ranges 120 to 125 MHz and 130 to 135 MHz 120 000 125 000 130 000 135 000 F r e q 1 1 8 0 0 0 M H z M o d e V D L M O D E 2 Main Scree...

Страница 28: ...creen First Page B E 4 1 3 5 0 0 0 M H z B a c k E x i t Band Edge Screen First Page Using the Switch highlight the band edge values to be altered pressing the switch after each alteration When all va...

Страница 29: ...lows F r e q 1 1 8 0 0 0 M H z M o d e V D L M O D E 2 Main Screen example shown for VDL Mode 2 F r e q u e n c y C h a n n e l S e t t i n g s E x i t Control Screen M o d e A M V O I C E M o d e S e...

Страница 30: ...ekey Off PTT Polarity STD active low or INV active high STD Phantom PTT Polarity STD active low or INV active high STD PTT reference voltage 14 0 or 14 V 14 V Audio line input 20 to 10 dBm 13 dBm 1 dB...

Страница 31: ...odulation depth 5 to 95 90 1 RF pre attenuator On or Off Off Loudspeaker Headset volume 0 to 100 30 5 MAC TM1 Inter access delay 0 5 to 125 ms 75 5 ms 0 5 ms MAC TM2 Channel busy 1 to 120 s 60 s 1 s M...

Страница 32: ...tenuator On or Off Off MAC TM1 Inter access delay 0 5 to 125 ms 4 5 ms 0 5 ms MAC TM2 Channel busy 6 to 120 s 60 s 1 s MAC p Persistance 1 256 to 256 256 13 256 1 256 MAC M1 maximum number of access a...

Страница 33: ...ight time out 15 to 120 s On or Off 30 s 15 s Modulation depth 5 to 95 90 1 VOGAD On or Off On Mute On or Off On PTT On key or Off dekey Off Tone keying 2175 2300 Hz or Off Off Microphone type Active...

Страница 34: ...0 to 100 30 5 Self receive transmit audio on line output On or Off Off Initiate BIT interruptive test On or Off DHCP On or Off Off IP address 000 000 000 000 to 255 255 255 255 192 168 0 2 IP subnet m...

Страница 35: ...ing Software Fills Four software fills are available as detailed in Fig 4 on page 13 Any two fills can be stored in the MDR at any one time All software fills are available on the user s network and c...

Страница 36: ...Intentionally Blank...

Страница 37: ...Installation...

Страница 38: ...ance to 1 7 m Further information on calculating the field strengths and power levels can be found in Health Canada Safety Code 6 Limits of Human Exposure to Radiofrequency Electromagnetic Fields in t...

Страница 39: ...Reference 1 Perform an initial inspection of the MDR page 39 3 Fit the MDR into an equipment cabinet page 40 4 Connect the remote signals as required page 41 5 Connect the chassis stud to the cabinet...

Страница 40: ...be supported by the front panel doing so can cause damage The MDR can be installed on telescopic slides or on fixed runners within a standard 483 mm 19 inch equipment rack M4 tapped holes each 10 mm...

Страница 41: ...via the Facilities interface For AM Analogue ACARS The analogue ACARS waveform connects between an external modem and the line inputs and outputs via the Facilities interface For AM Digital ACARS The...

Страница 42: ...0 Ethernet Connector Pin out Pin Signal Name Characteristic Input or Output 1 TD Balanced 100 ohm 10 10 100 Mbps Output 2 TD Output 3 RD Balanced 100 ohm differs from the reference by more than 10 10...

Страница 43: ...rogrammable to 14 0 or 14 V all 1 V Phantom PTT inactive when the input differs from the reference by less than 1 V Maximum input level 60 V with respect to reference Input requires at least 1 mA to o...

Страница 44: ...HDLC 0 RX A Pair to pin 7 Input 20 HDLC 0 CL A Pair to pin 8 Output 21 HDLC 1 TX A Pair to pin 9 Output 22 HDLC 1 RX A Pair to pin 10 Input 23 HDLC 1 CL A Pair to pin 11 Output 24 Time 0 5 V CMOS Inpu...

Страница 45: ...NPN transistor grounding output normally open 200 mA maximum Output 3 Reserved Open collector NPN transistor grounding output configurable to be normally open or normally closed 200 mA maximum Output...

Страница 46: ...nna G antenna gain R distance to centre of radiation and 1 4 multiplication factor for average power based on a modulation index of 90 Based on this formula a 2 dBi antenna the predicted safe distance...

Страница 47: ...t must be earthed The earth terminal of the ac connector should be used as the safety earth An ac input connector see Fig 8 and Fig 12 is fitted to the equipment s rear panel The cable used to connect...

Страница 48: ...oded in accordance with the electrical appliance colour code regulations for the UK That is The core coloured green and yellow must be connected to the terminal in the plug that is marked with the let...

Страница 49: ...Draft Maintenance...

Страница 50: ...ule maintenance comprises 1 Ensuring the equipment is clean 2 Ensuring that the external connectors are securely fitted to the MDR 3 Checking and resetting if required the MDR s frequency standard see...

Страница 51: ...e 1 If the MDR is used in AM Voice mode with a frequency offset reset the offset to 0 kHz 2 Connect a high impedance frequency counter to the front panel Reference connector 3 From the Main screen pre...

Страница 52: ...d is fitted to the MDR s Antenna connector In order to test the line input stages an internally generated 1 kHz tone is injected into the line input circuit Any other audio present on the line input w...

Страница 53: ...s t i n g P l e a s e W a i t T e s t S t a t u s P A S S O K T e s t S t a t u s F A I L O K 3 During the test which takes approximately two seconds the Testing screen is displayed 4 When the test is...

Страница 54: ...remove the four M4 x 12 mm caphead Allen screws that secure the fan to the PA module heatsink 4 Remove the fan from the PA module Refitting To refit the cooling fan proceed as follows 1 Locate the fa...

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