INTERPHONE SYSTEM-1 A HOME TELEPHONE SET CONNECTIONS AND MAINTENANCE

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Theodore Hicks
7 years ago
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1 ELL SYSTEM PRACTCES Pant Series SECTON ssue, October 970 AT&TCo Standard NTERPHONE SYSTEM- A HOME 7 8 TELEPHONE SET CONNECTONS AND MANTENANCE. GENERAL. CONNECTON NDEX.0 This section contains connection and maintenance information for the 7 teephone set when used with the A home interphone system..0 This section is reissued to change the section references in.0..0 The C transmitter is not furnished with the teephone set and must be ordered and instaed separatey. Fig. -7 Teephone Set, Eary Production Us ing 5H Dia and 00 Network-Wired for A Home nterphone. Fig. -7 Teephone Set, Current Production Us ing 5P Dia and 00D Network-Wtred for A Home nterphone. Fig. -7 Teephone Set-Connections to A Home nterphone American Teephone and Teegraph Company. 970 Printed in U.S.A. Page SSP S-S0 i0_ jpg Scanned by Frank Harre, (Cowboy Frank) Caste Rock, Coorado Apr 9,0 :0:5

2 ": a U TO T T R R T sw UNT (FG oc M M P P DL MTG CORD (W-R) (W-L) L-W) (R-W) (G-V (V-G) (W-S S-W) (O-W {5-V (V-S (G-V) (Y-G) TERM. STRP O(J " J \ O(J O(J L T 7 E O(J EJ/ 0 5 \_ Jr U (S-R G) {0) (V (Y) {S-R) W () {Y) {0) 88 LNE KEY q r, ALL uj wf yf t. (0-K) 0 {R) {W) CLOSE t FOR NGHT LGHT DAL LGHT t d EXCLUSON SWTCH (HOLD) (G-K) b jo c d ( e h LNE SWTCH (G d R:i f MAKES EFORE REAK R) b c s 0 k {S) RR F 008 NETWORK GAR HANDSET H DAL (R-G) L c G {S) c: C ;;; A K TRANSMTTER RACKET (NOTE ) _ {W) GN Oi.,. RCVR =t w---- r w---- w. u R (L) (0-K a NSULATED AND STORED NOTES (NOTE ) THE C TRANSMTTER S NOT R -- t FURNSHED WTH THE 78 TELEPHONE SET AND MUST E ORDERED AND NSTALLED SEPARATELY TRANSMTTER RACKET S PART OF THE ELECTRCAL CRCUT AND MUST E CONNECTED TO TERMNAL 9 OF THE TERMNAL STRP A RNGER S NOT PROVDED WTH THE 78 TELEPHONE SET F RNGNG SERVCE S REQURED, USE EXTERNAL RNGER. SEE SECTON COVERNG E- TYPE RNGER for CONNECTONS ;;; n. 0 z LAMP TERMNAL OARD Fig. -78 Teephone Set, Eary Production Using 5H Dia and 008 Network-Wired far A Home nterphone SP S-S0«-i0_ jpg Scanned by Frank Harre, (Cowboy Frank) Caste Rock, Coorado Apr 9,0 :0:0

3 " D D w TO UNT (FG. ) q Dt TERM. MTG STRP CORD T {W-RJ T (W- R (L-W) / R j, " i, L t (G-V) r 0 (V-G. T (W-S i 7 SW i (S-W : g % DC u (O-W t_ : E./ M (S-V t, 0 M (V-S T 9 p 5 88 LNE KEY Pj.,, (V) q L (Y) t, S) t. (5-R) () (Y (0) mj " (0-K 0 (W P t:k (G-Y} tl \ (5-R) yf ; CLOSE FOR NGHT (0) LGHT DAL P f (Y-G i LGHT LAMP TERMNAL OARD EXCLUSON Wt Fig. -78 Teephone nterphone SWTCH (HOLD) {G-K) t b c n d t-:r ; b " tl e (5) h LNE SWTCH F i j\ if REAKS. LAST Q d MAKES f 0 EFORE < i)i REAK j j, MAKES c FRST v i RR. (GJ _ 000 NETWORK GAR HANDSET \ -, L c G twd RCVR cr GN J (W-L) R TRMTR (R-G,,, (R,,. RACKET (NOTE n NOTES:,d A k C TRANSMTTER {NOTE ) (R,., rt, (. THE C TRANSMTTER S NOT FURNSHED WTH THE 78 TELEPHONE SET AND MUST E ORDERED AND NSTALLED SEPARATELY.. TRANSMTTER RACKET S PART OF THE ELECTRCAL CRCUT AND MUST E CONNECTED TO TERMNAL 9 OF THE TERMNAL STRP.. A RNGER S NOT PROVDED WTH THE 78 TELEPHONE SET. F RNGNG SERVCE S REQURED, USE EXTERNAL RNGER. SEE SECTON COVERNG E-TYPE RNGER FOR CONNECTONS. N SUL AT EO AND S T 0 R EO. (0-K) 5P DAL,., Set, Current Production Using 5P Dia and 000 Network-Wired for A Home " w-- w---- w-- L f----., ht = T SP i0_ jpg Scanned by Frank Harre, (Cowboy Frank) Caste Rock, Coorado Apr 9,0 :0:

4 SECTON TEL SET 0L - MTG CORD (W-L) (L-W 759A NSDE WRE LOUDSPEAKER OR CALE p 5 A UNT R TP RNG ] TO co LNE 7 : (W-S) W-R R-W) s T L G-V (O-W) (5-W) ;.,. 8 (V-G) 0 (S-V ;,. :,_+ J,.+ - NOTES (V-5 (G-Y) (Y-G) 9 LS 8 ;,. M M 5 P P P ] TO -8V 0-HZ ] POWER SOURCE (DAL LGHT) TO -V 0-HZ. USE SEPARATE 0A OR KS- 8 TRANSfORMERS TO PROVDE DAL LGHT AND UNT POWER.. WHEN TWO OR MORE 70A RECEVERS DOOR ANSWERNG UNTS) ARE USED, DSCONNECT R FROM TERMNAL 5, NSULATE AND STORE DSCONNECTED END. NSULATE AND STORE. t TERMNALS ON LAMP TERMNAL OARD 70A RECEVER MKE LS ;, i p P M 5 f R (NO TE ) POWER SOURCE (POWER) Fig Teephone Set-Connections to A Home nterphone. MANTENANCE.0 Refer to Division 5 for maintenance of externa A home interphone components (contro unit, door answering units, oudspeakers) and to Division 50 for maintenance of 7 teephone set (except C transmitter). t.0 Maintenance of the C transmitter (mounted in the teephone set) consists of repacing defective units as foows: () Remove set housing. Loosen dia mounting screws and move dia to one side to cear area between diaing brackets. Do not disconnect dia eads. Page. SP 550 i0_ jpg Scanned by Frank Harre, (Cowboy Frank) Caste Rock, Coorado Apr 9,0 :0:8

5 SS, SECTON () Remove transmitter and component board (Fig. ). Note: f N transmitter unit ony is defective or if paper membrane covering transmitter unit is torn or damaged, repace N transmitter unit by removing it from its mounting bracket, removing the ead cipped to the reverse side, and instaing a new unit. () nsta the component board of the repacement transmitter between the dia mounting bracket uprights and secure using the screw furnished. The component board is notched to fit into sots on the dia mounting bracket. () Mount the transmitter bracket on the mounting board termina board using one screw from termina 9 (Fig. 5). The bracket shoud be paced between pegs on the termina board as shown in Fig. 5. Fig. 5C Transmitter, Component Positioning (5) Connect transmitter eads as shown in Fig. or. () Repace dia and set housing. TRANSMTTER N MOUNTNG RACKET Fig. --C Transmitter, nstaed Page 5 5 Pages SP i0_ S.jpg Scanned by Frank Harre, (Cowboy Frank) Caste Rock, Coorado Apr 9,0 :0:5

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