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R309

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l1JTEU381

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R312

'17K

SR7-5,-8PCHINH

REPEATER ENABLE(PUSH ON-PUSH OFF)

JU'I CIRCUIT ::I

ALERT INH SELECT

C3 •.•

.01

R31817K

R316170K

R303I. SK

JU2121

R32610K

R337

I.SK

Pha e r- v.In-phas audi

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RX AUDIO TO PATCHC27

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Schematic Diagrams for iSOR BasicInterconnect Controller, Repeater Audio Pat"s

(Sheet 2 of )

.sv ~rJ U(Yl ~G IW.1 11K II.

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I SR" 3 'PII 14 PIO AI3 23 AI4 AIS L 3 IlllIt AI3 vss PBS 28 PBS

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PCS 3S PCSDIC PH I 124 STBV PC7 3~ PC7 JUS >---

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a" a,a I SAI0 2 JU" (/l ~~ IS PTT CONTROl

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7 SRI I 8 8 : 9~3,~ J 180K leeK

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-5 3 MIN ACCESS TIME TO LINERR B+ PAS R98 FROM U307,ON=3 Mll'UTESOFF=TIMER OFF SCHEMATIC 1I fI MIIOC , ISSK PINS 3 & I-G LONG DISTANCE: J (;:"r J.

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tic Diagrams for i50R Basicnnect Controller, Power Supply and Digital Section3 of 5)

SchemaInterco(Sheet

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TO DIGITf\.. SCHEMATIC r;-;l!i ! 5Iexo~1~- lexffi ••

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RX AUDIO FRX AUDIO TFROM U308-

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