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Ericsson DUAL FORMAT MDX LBI-38848A, Maintenance Manual

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Ericsson DUAL FORMAT MDX LBI-38848A Maintenance Manual Download Page 11

INTERCONNECTION DIAGRAM

(19D904133, Sh. 2, Rev. 2)

LBI-38848

LBI-38848

10

Summary of Contents for DUAL FORMAT MDX LBI-38848A

Page 1: ...bile Communications DUAL FORMAT MDX 806 870 MHz MOBILE TABLE OF CONTENTS RF BOARD LBI 38849 SYSTEM BOARD LBI 38842 AUDIO LOGIC BOARD LBI 38843 AUDIO AMPLIFIER BOARD LBI 38844 FRONT CAP ASSEMBLY LBI 38...

Page 2: ...ng 25 kHz 12 5 kHz NPSPAC Frequency Stability 1 5 PPM 0 00015 Temperature Range 30C to 60C 22F to 140F Dimensions H x W x D Less Accessories Height 5 3 cm 2 1 inches Width 18 2 cm 7 2 inches Depth 24...

Page 3: ...ntains audio filtering conventional analog tone processing and the receiver squelch The Audio Logic Board controls the opera tion of the radio and digitally processes the receive and transmit audio Th...

Page 4: ...mode pro viding customers another dimension of flexibility in opera tion Both modes provide opportunities to increase RF channel utilization through faster channel access and the privacy inherent wit...

Page 5: ...uisition tone back to the mobile unit When the interrogating mobile detects the acquisition tone it then transmits its collect and group tones which the repeater regenerates for all idle mobile units...

Page 6: ...call The duration of the tone varies as a function of the number of channels which are programmed into the mobile and or repeater In a two tone call the mobile sends the collected tone for a programma...

Page 7: ...ing placed Then a three tone alert is sounded to indicate the call origination is complete This indicates a channel was acquired and is ready for normal conver sation INVALID CALL ORIGINATE ALERT A lo...

Page 8: ...ASSEMBLY DIAGRAM 19D904183 Sh 1 Rev 1 LBI 38848 LBI 38848 7...

Page 9: ...ASSEMBLY DIAGRAM 19D904183 Sh 2 Rev 2 LBI 38848 LBI 38848 8...

Page 10: ...ASSEMBLY DIAGRAM 19D904133 Sh 1 Rev 2 LBI 38848 LBI 38848 9...

Page 11: ...INTERCONNECTION DIAGRAM 19D904133 Sh 2 Rev 2 LBI 38848 LBI 38848 10...

Page 12: ...INTERCONNECTION DIAGRAM 19D904133 Sh 3 Rev 2 LBI 38848 LBI 38848 11...

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