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Bell System 500LM/MM, Сервисная инструкция

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BELL  SYSTEM  PRACTICES 
AT&TCo  Standard 

1. 

GENERAL 

SERVICE 

500L/M  AND  500LM/MM  TELEPHONE  SETS 

1.01 

Reissued  to  add 

500LM/MM 

telephone  set 

(modular), Fig. 

4. 

NOTICE 

Not for  use  or  disclosure  outside  the 

Bell  System  except  under  written  agreement 

Printed  in U.S.A. 

BSP 

502-580-405-i03_1975-11-0l.jpg 

Scanned by  Frank  Harrell,  {Cowboy  Frank) Castle Rock, Colorado  Feb 

04,2012  12:09:24 

SECTION  502-580-405 

Issue 

3, 

November  1975 

Page  1 

Содержание 500LM/MM

Страница 1: ...add 500LM MM telephone set modular Fig 4 NOTICE Not for use or disclosure outside the Bell System except under written agreement Printed in U S A BSP 502 580 405 i03_1975 11 0l jpg Scanned by Frank Harrell Cowboy Frank Castle Rock Colorado Feb 04 2012 12 09 24 SECTION 502 580 405 Issue 3 November 1975 Page 1 ...

Страница 2: ...OIIK REPLACE DIAL WITH APPARATUS BLANK 3 WHEN BOTH rEATURES ARE REQUIRED RfPLAC 4 CONDUCTOR MOUNTING CORD WITH CONDUCTOR MOUNTING CORD AND CONNECT BL AND II LEADS TO BK AND R RINGER LEADS RESPECTIVELY US 0 161488 CONNECTORS OR SPARE TERNINALS S BK ill j_o S R Tl w 4 TO PREVENT rALS HOLD CONDITION WHEN HANDSET IS RESTORED S IITCH CONTACTS b c MUST BREAK BErOR d e BREAK ON 5 CONNECTIONS roR C4B RING...

Страница 3: ...NNECT BL AND W LEAO S TO BK AND R RINGER L ADS R SP CTIVELY US 0 161488 CONNECTORS OR SPAR TERMINALS 4 TO PREVENT FALSE HOLD COHOITION WHEN HANDSET IS RESTOREO SWITCH CttHACTS d e MUST BREAK BEFORE b c BREAK w I ill I t M ISS 3 SECTION 502 580 405 C4 TYPE LINE SWITCH 7 TYPE liD PE RINGER NOTES 4 AND 6l NOTES 1 2 3 5 7 BK R G 1 W Y b a BR 1cc BK Rl 5 CONNECTIONS FOR C4B RINGER SHOWN SETS WITH C4A R...

Страница 4: ...ACE Dl AL WITH APPROPRIATE APPARATUS BLANK BL BL II II 3 WHEN BOTH FEATURES ARE REQUIRED REPLACE 4 CONDUCTDR MTG CORD WITH 6 CONDUCTOR IITG CORD AND OP ON CONNECT Bll AND W LEADS TO BK AND R RINGERLEADS RESPECTIVELY USE D 161488 CONNECTORS OR SPARE TERMINALS 4 TO PREVENT FALSE HOLD CONDITION WHEN HANDSET IS RESTORED SWITCH CONTACTS d e MUST BREAK BEFORE b c BREAK 5 CONNECTIONS FOR C48 RINGER SHOWN...

Страница 5: ...fROM TERMINAL f TO RR ON NETWORK REPLACE DIAL WITH APPROPRIATE APPARATUS BLANK ON 3 WHEN BOTH FEATURES ARE REQUIRED REPLACE 623D4 JACK WITH DGAA TYPE COA J AND 123A APPARATUS BLANK AND CONNECT Bl AND II LEADS TO BK AND R RINGER LEADS RESPECTIVELY USE D 161488 CONNECTORS THE SET IS NO LONGER MODULAR AFTER THIS MODIFICATION 4 TO PREVENT F ALSE HOLD C ONDITION WHEN HMDSET IS RESTORED SWITCH CONTACTS ...

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