VOICE CONNECTING ARRANGEMENTS QKT AND QKTBT 30-TYPE VOICE COUPLER

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1 BSP i05_1974.Q3.Q1.jpg Scanned by Frank Harrell (CowboyFrank) Castle ock. Colorado Feb 23, :24:32 BELL SYSTEM PACTCES AT&TCo Standard SECTON ssue 5, March 1974 VOCE CONNECTNG AANGEMENTS QKT AND QKTBT 30-TYPE VOCE COUPLE 1. GENEAL 1.01 This section provides identification, installation, operation, maintenance and connection information for the 30-type voice coupler when used to provide Voice Connecting Arrangements (VCA) QKT and QKTBT. Voice Connecting Arrangement QKT may use either the 30A (MD) or 30B coupler to permit voice transmission only from the customer-provided equipment (CPE). Voice Connecting Arrangement QKTBT uses the 30B voice coupler to permit voice transmission and tone address signaling from the CPE. TO TELEPHONE SET O CONNECTNG BLOCK 1.02 This section is reissued to: nclude connections for HlB and C4B ringers evise drawings and tables This section provides information on modification and connections to be made to telephone sets to permit their use with voice couplers. TO CUSTOME EQUP CONNECTNG WE O CABLE (MUST BE FUNSHED BY CUSTOME) 1.04 f the customer wants a copy of the Technical eference which covers this interface specification, the customer should contact the local Telephone Company Business Office or the Marketing epresentative. 2. DENTFCATON Fig Type Voice Coupler PHONE PLUG AND CONNECTNG WE O CABLE MUST BE FUNSHED BY CUSTOME) 2.01 Purpose: To provide 2-wire connection of CPE (voice transmitting and/ or receiving) to Bell System lines. These couplers must be associated with a Bell System set equipped with an exclusion key. The coupler provides de isolation and limits excessive signals Ordering Guide (Fig. 1 and 2): Coupler, Voice, 30A* Coupler, Voice, 30A, modified for radio frequency interference (F) (5.06) CONNECliNG BLOCK Fig Type Voice Coupler, Cover emoved Coupler, Voice, American Telephone and Telegraph Company, 1974 Printed in U.S.A. Page 1

2 BSP 46J..J _l.:Q:iPQ Scanned by Frank Harrell (CowboyFrank) Castle ock,,.co""l'"'"""''-'"' ''"'"..,'"""'- ' -" ''"'4:44,. SECTON Coupler, Voice, 30B*, modified for F (5.06) -49 (Light olive gray). Associated Apparatus (Order Separately, 3.02) Set, Telephone, 502B Set, Telephone, 511D Set, Telephone, 511F Set, Telephone, 558C/D Set, Telephone, 558F Set, Telephone, 565LK Set, Telephone, 712B Set, Telephone, 2502B Set, Telephone, 2511F/H Set, Telephone, 2558D Set, Telephone, 2565LK Set, Telephone, 2712B Kit of Parts, D (exclusion switch for 565- or 2565LK telephone set) Design Features: (a) Component parts are housed in a modified 74A connecting block. Approximate dimensions are 4 inches long by 2-3/ 4 inches wide by 1-5/8 inches deep. (b) A standard 0.25-inch tip-sleeve phone jack permits the electrical connection of customerprovided (CP) voice communication device. (c) Any power for customer equipment must be supplied by the customer. DC power is not available at the coupler and must not be applied to the coupler. (d) 30A and 30B couplers are electrically and mechanically the same except for the higher peak signal clipping level of the 30B to permit customer tone address signaling from CPE. 3. NSTALLATON 3.01 nsofar as possible be guided by the customer's wishes in placing the apparatus. The coupler will mount to any flat surface. A backboard is not required unless mounting to a damp surface or when a backboard will facilitate mounting Where the customer needs only a single bridge, a 502B or 2502B telephone set is recommended. f the customer requires the transmitter and/ or receiver of the telephone set to be disabled, a 511- or 2511-type telephone set (or equivalent) is recommended. The 565LK or 2565LK telephone set allows the customer to bridge the coupler to any line picked up in the set and use the turnkey to disable the transmitter and/or receiver of the set. f tip party identification is required, the 511D or 511F telephone set is recommended Other type telephone sets may be used provided the set is equipped with an exclusion key to connect the voice coupler to the central office (CO) line. Where no exclusion key is available, as with CALL DECTO sets, see Voice Connecting Arrangement CEBAW (Section ) f the exclusion switch has spare contacts available, they may be used to automatically disable the transmitter and/or receiver (Fig. 4) The F (MD) voice coupler is equipped with a terminal strip for line and associated telephone set connections; the 30-type voice coupler requires these connections be made at an external connecting block. 4. OPEATON (Fig. 3) 4.01 ncoming Call: An incoming call is received in the usual way, and the coupler is connected to the line and short across coupler output removed by lifting the associated telephone set exclusion key Outgoing Call: An outgoing call is placed in the usual way, and the coupler is connected to the line by lifting the associated telephone set exclusion key. The coupler should be disconnected and shorted (exclusion key down) when dialing to prevent possible dial pulse distortion and transmission of dial pulses through the coupler to the CPE. Page 2

3 BSP _1 974.{)3.{)3.jpg Scanned by Frank Harrell (Cowbo ran k).. Cu ' '.!<> ooki<..'co'ej""'''"- ' J Fob2!13 c1j 20lli16l..;2!LLc1!; 25c'Q<' 06i SS 5, SECTON L [_:..:.T STATON SET, , NGE ----!r---. * NET. 1---t------'J r:=-:.:..::..;---,r) TMT CV ii LS -- EXCLUSON L ::"_ J NOTE ' TUN KEY O PAT OF EXCLUSON SWTCH n -y-- -- ;,:-='i L TYPE VOCE COUPLE Fig. Schematic-Voice Connecting Arrangements QKT and QKTBT Disconnect: The voice coupler will be disconnected when the associated telephone set goes on hook to terminate the call or when the exclusion key is pushed down to normal position The telephone set remains connected to the line and is functional on both incoming and outgoing calls unless transmitter or receiver cutoff option is in effect As a customer option, the transmitter and/ or receiver of the associated telephone set may be disconnected when the CPE is in operation. The associated telephone set may be equipped with a cutoff turnkey or spare exclusion key contacts used for this purpose When the turnkey is used to disconnect the transmitter and/or receiver, the turnkey must be in the "on" position to receive or make a call and turned "off" to disconnect transmitter or receiver or both when the coupler is used. The cutoff key must be manually restored when the call is terminated. When the exclusion switch contacts are used to disconnect the transmitter and/or receiver, lifting the exclusion switch will automatically disconnect the transmitter or receiver or both. When the call is terminated, the transmitter and/or receiver will be automatically restored. 5. MANTENANCE 5.01 Maintenance is limited to checking connections and determining if the coupler is working properly by monitoring reception at the tip and sleeve of the jack on the coupler with customer equipment disconnected Go off-hook on the associated telephone set and verify normal dial tone in associated telephone set. Connect a 1013A (or equivalent) hand test set with MON-TALK switch in MON position to the tip and sleeve of the jack on the coupler; no dial tone should be heard. Dial digit "0" using the dial of the telephone set; no dial clicks or tones should be heard in the hand test set. Go on-hook and off-hook and lift exclusion key; dial tone should be heard in the hand test set at about the same volume as heard in the associated telephone set receiver prior to lifting the exclusion key f the associated telephone set is equipped with a cutoff turnkey, operate to the "off" position and verify that the transmitter and/or receiver of the telephone handset are disconnected while dial tone at normal volume is heard on hand test set at coupler. Page 3

4 BSP 46J..J _1974..QJ-04.jpg Scanned by Frank Harrell (CowboyFrank) Castle ock, co.,., l o,..,.d"'o-"f '"''".<' 20ill 16c_.2u; 1 :25oJ117_ SECTON f the associated telephone set is using spare contacts on the exclusion switch to disconnect the transmitter and/or receiver, verify that the transmitter and/ or receiver of the telephone handset are disconnected while dial tone at normal volume is heard on the hand test set at the coupler. f all tests are satisfactory, the coupler is working properly. Do not attempt any tests or repairs 1\. to the CPE When in the repairman's judgment the trouble is located in the CPE, the epair Service Bureau should be notified so that proper Maintenance of Service Charge billing can be initiated as outlined in Section entitled Maintenance of Service Charge on Services With Customer-Provided Equipment (CPE) f F is encountered, the F (MD) or 30-type voice coupler should be replaced by a 30-type voice coupler stamped "Modified for F". n addition, install a 1542A inductor in series with tip and ring of the coupler at the coupler connecting block (Fig. 9). efer to Section entitled "adio Signal Suppression for Telephone Sets" for complete modifications necessary when F is encountered. 6. CONNECTON NDEX Table A-Typical Telephone Set Modified for Use With 30-Type Voice Coupler Table B-502B Telephone Set Modified for Use With F (MD) or 30-Type Voice Coupler Table C-Modification of 511D Telephone Set for Use With F (MD)or 30- Type Voice Coupler Table D-511D Telephone Set-Modified for Tip Party dentifying Ground and Use With F (MD) or 30-Type Voice Coupler Table E-Modification of 511F Telephone Set for Use With F (MD) or 30-Type Voice Coupler Table F-511F Telephone Set-Modified for Tip Party dentifying Ground and Use With F (MD) or 30-Type Voice Coupler Table G-Modification of 558C/D Telephone Set for Use With 30-Type Voice Coupler Table H-Modification of 558F Telephone Set for Use With 30-Type Voice Coupler Table!-Modification of 565LK Telephone Set for Use With F (MD) or 30-Type Voice Coupler Table J-Modification of 712B Telephone Set for Use With 30-Type Voice Coupler Table K-2502B Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupler Table L-2511F Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupler Table M-Modification of 2558D Telephone Set for Use With 30-Type Voice Coupler Table N-2565LK Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupler Table 0-Modification of 2712B Telephone Set for Use With 30-Type Voice Coupler Table P-1542A nductor Connections to Telephone Sets-Modified for F Fig. 4-Typical Telephone Set Modified for Use With 30-Type Voice Coupler Using Exclusion to Automatically Disable Transmitter and eceiver Fig B Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupler Fig D Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupler Using Turnkey to Disable Transmitter and eceiver Page 4

5 SS 5, SECTON co LNE T(G) () Fig F Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupler Fig LK Telephone Set-Modified for Use With F (MD) or 30-Type 42A EX CLU SON C4A MTG CONN CO O KEY l NGE BLK lj! T( G)., ( ) B (BK) (BL-V) (V-BL) l :! (11-BL) y Tl (Y) ' T (BL-11) '! (BK) () (S-) * (S ) (11-0) l (V-0)1 l (O-l) J :l (0-V ) 'l J J PHONE Cl JACK Tl (BK) JCJ / V 2 V2 30-TYPE VOCE COU PLE () () G3- TYPE HANDSET 0 Voice Coupler Using Cutoff to Disable Transmitter and eceiver Fig A nductor Used With 30-Type Voice Coupler () (BK),, _!._ ld 1 u 425E NETWOK,.V Ll r \ L2 c n.!_ i n.k 0G u LNE SWTCH (G) (S-G) () (S-11( t: (S) (Y) (s-v) + 7 (MO) O 9 TYPE OAL Ef (G O BL) (B) (S-B ) fc DP (BK) (S-BK( GN () (S-) 06! (BL) () + ON lt () MOOirY SET \/NG PE TABLE A. ( ) CUENT CO LO CODE ( MD COLO CODE J! NSULATE AND STOE SPLCE USE CONNE CTO Fig. 4-Typical Telephone Set-Modified for Use With 30-Type Voice Coupler Using Exclusion to Automatically Disable Transmitter and eceiver Page 5

6 SP. 46J..J _ o6.jg ScannedbyFrankHarreii(CowboyFrank)). C!! '"''B.<><oo"c k J;C.tolo.r""'d[Q. oc F!' b>.l23 20W162 t;;o25! ;o50l--=:...:=========::==========::::;.::===========::====---"' : ll 0. ::: MTG COD T(M. EXCLUSON KEY TEMS C48 NGE r STP ONNET j: l () w J i k (W) (G) : 2). ry - (BK) ' (BK) ( A) t / ' ( S ) L2 Gl th f! % ; t. ' BEAKS LAST A (BL). 5 ::.* (BJ '?. 0 F A (W) ::Ji 6 /,! d'"(-'y!...) i'" ;_b--t 0 MAKES Tl (Y) i(j 0 t. ',f FST... l.ii.. F (MOl VOCE COUPLE 7C, 70, O 9C DAL (G) (BL) (G O BL) 'r' r-- :A k:: PULSE,.. c (W) (A) BK l 0G :=:J! (W) n (W) orr NOMAL a 425( N(T'WOK lr.. A T i% (G) t<! K * () : (! C!t.:_ BK::C) _J(,::_G-_:.,YlLt i' +' --vl_j! 0, :. - J 1 r>c,:e>--'!- j- :' (Y)--t[_-Y-'-J] ril " fl (BL) i J LNE SWTCH 1 e- ( GH J j (BK) (A) -!. 8 Tl () PHONE JACK 0 (BK) NOTE: FO CONNECTONS TO f" MD O 30 TYPE VOCE COUPlE,MOD FY SET WNG PE TABLE B 42A CONNECT lng BLOCK TO C TYPE VOCE COUPLE * - EtcJVE FOM TEMNAL, NSULATE AND STOE OPONS: ( ) - CUENT COLO COO Y r (MD) VOCE COUPLE l - NO COLO COO Z 30-TYPE VOCE COUPLE Fig. S Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupleri

7 SS 5, SECTON "'""... OCCLUSON lriiclt.»>tng COD TEMS. C4A 7G,7H STP KEV KEV ON NGE OF90 016F 0160 NETWOK DAL (W-B (BK] 2 lo G.. "l BK UBL F. K G ls l 10- [O-V) El W T!S- B - W [V]. TP (W BL lgl NG BL-Wl [] t [_ g 425E NETWOK 1 -=--' l G O BU <J L PULSE. T 'L c ' "' LNE SWTCH ASSEMBLY ( W ) (5-B) t (G) (5-Y) d t " Gt0 MAKES SECOND E2 Vl [-v] (S-] GN BL-) [ B-).., BK) (S-BK) -BL [B-G] 6 ' BEAKS CAST!W Tl -01 [B-BK) it W W-G [ 0-G] OFF NOMAL G-W ro- 1 OFF NOM G-l ( 0 BL] lv ' " G3A HANDSET (-G) r o-wl G lv Wl it MAKE BEFOE CV S-W ( 0-81(] 10 BEA( ls.!w lv s-w ' 0 (81<) AO-W [W] T W TMT NAKES FSTr *W-0) r alj BL AW-Sl l 0] 9 B - (5- r- F {MD) VOCE COUPLE (j) (j) Tl Gl NOTE (j). ll JACK fo CONNECTONS TO F O 30-TYPE VOCE COUPLE, MODFY SET WNG N AC CODA NCE WTH TABLE C iy) { ) CUENT COLO CODE P'a ' ;y:c V2 [ J. MD COLO CODE 3 NSULATE ANO STOE AT CONNECT NG BLOCK () O VOCE COUPLE. C :11""" (S- S G 42A CONNECTNG BLOCK G (j) G) l.c D"" o F B{MO) VOCE COUPLE V J4CK <!) 30-TYPE VOCE COUPLE v 2 2 V (0) 30- TYPE VOCE COUPLE TP (G) NG {) Tl TO C 0 Fig D Telephone Set--Modified for Use With F (MD) or 30-Type Voice Coupler Using Turnkey to Disable Transmitter and eceiver Page 7

8 SP iOS J.OS.jp_g Scanned by Frank Harren y Frank'-"' C'"'""''"'""'""' "C"' ' '""' "-.'c!'c<0 '-'2'i'. J,., 20[1'1621t;;'26 '"'2lL SECTON E NETWOK k.j -.1 : ( S ) i:; %::: A wk,:.:,;,.r. rc--(;;c;.l------f@ f.,.,_,fii :;:::---f:'f _e'\'---f---f--f , ill!t (W-B) l r> 5 l,:,li :::) vl- -<e> f!ffi!!t'-' <eeg_-,_b,_k!... ) fm!f:;:'-::± , -!B_L *-,N-G,!i!W!- J w_l_,=!"' [l!:- +0','-6-!i j:?"" i! _,_ts"' "'l'---'-' m on ll l iiij. llt (B-W) tij 6 hi :: 1 * G Ll 0 0 ' B ( ) (W) (W) GN (BK) 4 2A CO NN BLOCK TO C.O. O PTONS: (!}F (M0) VO CE COUPL E TYPE VOCE COUPLE. Fig F Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupler Using Turnkey to Disable Transmitter and eceive.. Page 8

9 BSP iOS "p Scanned b Frank Harrell Cowbo Frank) Castle ock. Colorado Feb 23, :26 :42 66( CONN BLOCK PN NO. ] till. till LEAD DESG CT XT LH LC DSOT MTG. CO D.._ (B-w) $1 ( (s- 1 (W- B) 1 -sl (BL-) (-BL) (Y- O) (BL-Y) (Y-BL ) (0-Y) l 1 1l TEMNAL ; ;9AJ ( KEY t 2 * 2T 2H L2 LG X C XT E ' r TO 3O LNE PCKUP KEY (B) lbl-v 589AJ KEY (PA.TAL) (C) j 2ND LNE PCKUP --.-: K(Y (P (Y-B ) t j j CU TOFF KEY (l) NETWOK TEMNALS B : (BK G3A HANOS[l t CV TMT () PHONE JAC K (V-0) (o- 1 (0-V EXCLUSON SWTCH {NOTE ) OPT ONS; {!) f (MD ) VOCE COUPLE 30- TYPE VOCE COUPLE * NSULATE AND STOE Fig. 565LK Telephone Set-Modified for Use With F (MD) or 30-Type Voice Coupler Using Cutoff to Disable Transmitter and eceive... NOTE: FO CO NNECTONS TO F ( MD) O 30-TYPE VOC E COUPLE, MODFY SET WNG PE TABLE ;;;....!"... ll!l 0 z!. 8

10 SECTON SEE TABLE P l Gl NG TP "' "'G 1542A NDUCTO 8 LNK EMOVED G "'y TP NG J 30- TYPE VOCE COUPLE "'' "'2 TO C.O. Fig A nductor Used With 30-Type Voice Coupler {When Modified for fl) TABLE A TYPCAL TELEPHONE SET - MODFED FO USE WTH 30-TYPE VOCE COUPLE Modification to connect voice coupler to CO line Operation of exclusion key disables CV Operation of exclusion key disables TMT WE O LEAD Exclusion (Ordered Separately) Exclusion CV Exclusion TMT BL-V V-BL BL-W W-BL 0-W w W-0 EMOVE FOM NETWOK MTG COO BKt CONNECT TO EXCLUSON NETWOK KEY * 0-Vt V-Ot c Note: See Figure 4 for example. * nsulate and store. t Splice using D connector. Page 10

11 BSP i05_1974.Q3-11.jpg Scanned by Frank Harrell (CowboyFrank) Castle ock, Colorado Feb 23, :27:15 SS 5, SECTON TABLE B 502B TELEPHONE SET- MODFED FO USE WTH F (MD) O 30-TYPE VOCE COUPLE (See Note) WE O LEAD TEM. STP EMOVE FOM NETWOK TEM. STP CONNECT TO NETWOK Mtg y E1 Cord* Modification to connect voice coupler to line BL E1 c and telephone set Exclusion BK L1 y L2 E1 Note: efer to Fig. 5 for connections to F (MD) or 30-type voice couplers. * nsulate and store (BL) and (W) mounting cord leads if not required for A lead control. Disconnect, insulate, and store (Y) lead of F (MD) voice coupler. TABLE C MODFCATON OF 511D TELEPHONE SET FO USE WTH F (MD) O 30-TYPE VOCE COUPLE (See Note) EMOVE FOM CONNECT TO WE O LEAD TEM. TEM. NETWOK STP STP Mtg* Cord NETWOK W-BL 2 L1 BL-W 2 L2-0 E2 Modification to connect C4A BK 6 L1 voice coupler to line and inger t 5 L2 telephone set BL E1 c Exclusion BK 2 y 1 E2 w E2 E1 Operation of 584A key 584A S-G L1 disables TMT TMT 2 Operation of 584A key 584A S- L2 disables CV CV w 1 Note: efer to Fig. 6 for CO, mounting cord, and interconnections to F (MD) or 30-type voice coupler. f needed, MD lead colors are shown in Fig. 6. lf A lead control is required, use (W-S) and (O-W) mounting leads to extend A and A1 to line circuit. f 3-type speakerphone is required, refer to appropriate connection section in Division 512. *nsulate and store unused mounting cord leads and (Y) lead of F (MD) voice coupler. tlf C4B ringer is used, (S) lead will be on terminal 5 on terminal strip; move to L2 of network. Page 11

12 SECTON TABLED 5110 TELEPHONE SET- MODFED FO TP PATY DENTFYNG GOUND AND USE WTH F (MD) O 30-TYPE VOCE COUPLE (Note 1) WE O LEAD CONNECTONS nside wire at conn Ground y 1 blk or F (MD) Tip G 5 term. ing 2 SET MODFCATONS 42A 30-TYPE F EMOVE FOM CONNECT TO CONN. VOCE (MOl BLK. COUPLE TEM. TEM. NET- TEM. NET- STP STP WOK STP WOK 0-W y 1 Mtg cord at conn W-BL G 5 blk or F (MD) BL-W 2 term. strip (Note 2) -0 B 4 All Other * * * nside wire from conn G 1 blk to 30A-type V /C B 2 Mtg W-BL 2 L1 Cord BL-W 1 L2 5 K t C4A BK 6 7 Modifications inger s K B to connect tele- Leads S- A B phone set and voice coupler y 1 E1 to line Exclusion BL E1 BK 2 E2 s 10 A Line B 9 c Switch y 7 L1 w c F Strap G F 5 Operation of line S- L2 key disables TMT TMT 1 Operation of line S-G L1 key disables CV CV w 2 Notes: 1. Connections shown are for lip party with 1000!1 to ground. For 2650!1, connect ringer leads as follows: () and (BK) to network terminal B, (S) to network terminal K and (S-) to terminal strip Disconnect, insulate, and store (Y) lead of F (MD) voice coupler. * nsulate and store. t C4A ringer must be used; TP cannot be supplied with CAB ringer. Page 12

13 BSP i05_ jpg Scanned by Frank Harrell (CowboyFrank) Castle ock. Colorado Feb :27 :48 SS 5, SECTON TABLE E MODFCATON OF 511F TELEPHONE SET FO USE WTH F (MD) O 30-TYPE VOCE COUPLE (See Note) Modification to connect voice coupler to line and telephone set Operation of 584E key disables TMT Operation of 584E key disables CV WE O LEAD TEM. STP W-BL 1 Mtg* V-BL 9 Cord BL-W 2 BL-V 10 HE St 1 inger BK 2 Exclusion BK 1 y 2 B 10 Line G 15 Switch B 20 Add Strap EMOVE FOM NETWOK 584E G-BK F TMT 584E S- 15 CV w TEM. STP CONNECT TO NETWOK c 12 F 1 2 Note: efer to Fig. 7 for CO, mounting cord, and interconnections to F (MD) or 30-type voice couplers. f A lead control is required, use (W-0) and (O-W) mounting cord leads to extend A and A1 to line circuit. f 3-type speakerphone is required move (G-V) mounting cord lead to terminal strip 16 and (V-S) to 3; then connect per appropriate connection section in Division 512. * nsulate and store unused mounting cord leads and (Y) lead of F (MD) voice coupler. t f HA ringer is used, () lead will be on terminal 1. Move to terminal12 on terminal strip. Page 13

14 BSP 46J..J _1974..QJ-14.jpg Scanned by Frank Harrell (CowboyFrank) Castle ock,joc!<olo"'"""''--'"! l>.'b2h,3 20!Jl16L;21J. 1 ]!2S!;Q SECTON TABLE F 511F TELEPHONE SET- MODFED FO TP PATY DENTFYNG GOUND AND USE WTH F (MD) O 30-TYPE VOCE COUPLE (Note 1) WE O LEAD CONNECTONS nside wire at conn Ground y 1 blk or F (MD) Tip G 5 term. strip ing 2 Mt g cord at conn 0-W y 1 blk or F (MD) W-BL G 5 term. strip (Note 2) BL-W 2 BL V B 4 All Other * * * nside wire from conn G 1 blk t o 30-type V /C B 2 SET MODFCATONS 42A 30-TYPE F EMOVE FOM CONNECT TO CONN. VOCE (MD) BLK. COUPLE TEM. TEM. NET- TEM. NET STP STP WOK STP WOK Mtg W-BL 1 12 Cord BL-W K t H1A BK 2 L2 inger s K B Leads Modifications to S A B connect telephone Exclusion w 9 set and vo ice coupler to line BK 1 Line Switch G w c F y L2 12 B 20 c s 18 A Operation of line G-BK F key disables TMT TMT 1 Operation of line W-0 20 key disables CV CV w 3 Notes: 1. Connections shown are for tip party with 10001! to ground. For 26501!, connect ringer leads as follows: () and (BK) to network terminal B, (S) to K, and (S ) to L2. 2. Disconnect, insulate, and store (Y) lead of F (MD) voice coupler. * nsulate and store. t HA ringer must be used ; TP cannot be supplied with HB ringer. Page 14

15 SS 5, SECTON TABLE G MODF CATON OF 558C/ D TELEPHONE SET FO USE WTH 30-TYPE VOCE COUPLE (See Note) nside wire at conn blk nside wire at telephone set nside wire conn blk to voice coupler Basic mo difications to connect voice coupler to telephone set and line DisablC' TMT DisablC' CV CONNECTONS SET MODFCATONS WE O TELSET 42A 30- EMOVE FOM CONNECT TO LEAD TEM NET- CONN TYPE TEM NET TEM NET- STP WOK BLK COUPLE STP WOK STP WOK T T1 1 T 2 1 T B/F G B y B 1 y 2 S- L2 E1 1 E1 G 2 E2 EXCN y 6 w 5 c Line Switch Add Strap G L2 1 2 F 584B/ F E1 S- El G TMT G 584B/F G E2 G-BK Ll L2 CV w L2 Noll': f A lead control is required, c nnect Al to terminal 12 and A to terminal 9 on term inal strip in telephone sel. Page 15

16 SP i05_ jpg Scannedby FrankHarrel l rank) _,c,.,""d'"'""" o'"' "' co,lo,_..,...,o,,f,..ob'"'2j""-20""" 16_,2c,; L"' 21!"': 31! SECTON TABLE H MODFCATON OF 558F TELEPHONE SET FO USE WTH 30-TYPE VOCE COUPLE (See Note) CONNECTONS SET MODFCATONS nside wire at conn blk lnside wire at telephone set nside wire conn blk to voice coupler Basic modifications Lo connect voice coupler to telephone set and line Disable TMT Disable CV WE TELSET 42A 30- EMOVE FOM CONNECT TO O CONN TYPE LEAD TEM NET- TEM NET- TEM NET- STP WOK BLK COUPLE STP WOK STP WOK T T1 1 T 1 2 T1 1 9 G B y B 1 y 2 v /F 0-BK G 1 5 EXCN BK 1 B 10 c Line B 20 3 Switch G 15 2 Add Strap 1 F 5848 / F 15 G S- 15 TMT G 5848 / F G 5 G-BK F L2 CV w L2 Note : f A lead control is required, connect A1 to terminal 4 and A to terminal 3 on terminal strip in telephone set. Page 16

17 BSP i05_ jpg Scanned by Frank Harrell (CowboyFrank) Castle ock. Colorado Feb :28 :49 SS S, SECTON TABLE 565LK TELEPHONE SET - MODFED FO USE WTH F (MD) O 30-TYPE VOCE COUPLE (See Note) Modifications to connect voice coupler to any line picked up in telephone set Operation of cut-off key disables CV Operation of cut-off key disables TMT EMOVE FOM WE O 589AJ KEY LEAD TEM. NETWOK STP BL-V V-BL D BL-W Exclusion W-BL (Ordered 0-W Separately) W-0 0 -V V-0 Mtg Cord V-BL ET 589AJ Y-B 2T CV w 589AJ B 2 TMT 589AJ KEY TEM. STP E * EB * EB EH CT C CONNECT TO NETWOK c Note: efer to Fig. 8 for connections to F (MD) or 30-type voice coupler. f a 3-type speakerphone is required, connect as shown in appropriate section in Division 512. *nsulate and store. Page 17

18 BSP 46J..J _1974..QJ-18.jpg Scanned by Frank Harrell (CowboyFrank) Castle ock,;, C!< Oio"'"""'o'-F':!o"-' b2'-b3 20m16G2<J. 1'"'""' '''-' SECTON TABLE J MODFCATON OF 7128 TELEPHONE SET FO USE WTH 30-TYPE VOCE COUPLE (See Note) LEAD DESG CONNECTONS SET MODFCATONS WE O 42A 30- EMOVE FOM CONNECT TO LEAD CONN TYPE TEM NET TEM NET- BLK COUPLE STP WOK STP WOK T W-BL G Mounting cord* BL-W at connecting block T1 V-G B 1 G-V y nside wire from B 1 conn blk to 30- type voice coupler y \ S v 1 8 B 1 c Basic EXC modifications \V 3 12 to connect BK 3 telephone' set and voice coupler Line B E1 8 to line Switch G 12 1 Disable TMT Add Strap 3 F 6381\ S- 1 G 1 TMT G 638A G-BK F 12 Disable G 3 CV CV w 12 No te: lf A lead control is required, connect A1 to terminal E1 and A to terminal 8 on terminal strip in telephone set. *nsulate and store unused leads. Page 18

19 BSP i05_1974.Q3-19.jpg Scanned by Frank Harre ll (CowboyFrank) Castle ock. Colorado Feb 23, :29:22 SS S, SECTON TABLE K 2502B TELEPHONE SET - MODFED FO USE WTH F (MD) O 30-TYPE VOCE COUPLE (See Note) WE O LEAD EMOVE FOM TEM. NETWOK STP CONNECT TO TEM. NETWOK STP Modification to connect voice coupler to line and telephone set Mtg y El Cord * Exclusion BL BK y El Ll L2 E l c Note: efer to Fig. 5 for connections to F (MD) or 30-type voice couplers. * nsulate and store (BL) and (W) mounting cord leads if not required for A lead control. Disconnect, insulate, and store (Y) lead of F (MD) voice coupler. Page 19

20 SECTON TABLE L 2511 F TELEPHONE SET -MODFED FO USE WTH F (MD) O 30-TYPE VOCE COUPLE (See Note) WE O LEAD TEM. STP EMOVE FOM NETWOK TEM. STP W-BL 1 12 CONNECT TO NETWOK Mtg BL-W 2 16 Cord* V-BL 9 BL-V 10 9 HB St 1 12 Modification to connect inger BK 2 16 voice coupler to line and telephone set BK 1 Exclusion y 2 10 B 10 c Line G Switch B 20 3 Dial G F 12 Operation of 631B (line) 631B G-BK F T key disables TMT TMT T 1 Operation of 631B (line) 631B S- 15 key disables CV CV w 2 Note: efer to Fig. 7 for connections to F (MD) or 30-type voice coupler and 42A conn blk and to CO line. f A lead control is required, use (O-W) and W-0) mounting cord leads to extend A1 and A to line circuit. f 3-type speakerphone is required, move (G-V) mounting cord lead to terminal strip 16 and (V-S) to 3; move (V-G) mounting cord lead and (0) dial lead to an unused terminal; then connect per appropriate connection section in Division 512. *nsulate and store unused mounting cords leads. Disconnect, insulate and store (Y) lead of F (MD) voice coupler. tlf HA ringer is used, () lead will be on terminal1; move to terminal12 of terminal strip. Page 20

21 BSP i05_ j!?_g Scanned by Frank Harrell (CowboyFrank) Castl e ock, Colorado Feb :29 :54 SS 5, SECTON TABLE M MODFCATON OF TELEPHONE SET FO USE WTH 30-TYPE COUPLE nside wire at conn blk nside wire at telephone set nside wire conn blk to voice coupler Basic modifications to connect voice coupler to telephone set and line Disable TMT Disable CV CONNECTONS SET MODFCATONS WE TELSET 42A 30- EMOVE FOM CONNECT TO O LEAD TEM NET- CONN TYPE TEM NET- TEM NET- STP WOK BLK COUPLE STP WOK STP WOK T T1 1 T 2 1 T1 1 3 G B y B 1 y 2 584H 1 12 y 3 12 EXCN B E1 c w E2 3 Line Switch BK G 12 1 Strap 2 F S L2 TMT 11 L l G-BK F L1 G 2 CV w L1 Page 21

22 SECTON TABLE N 2565LK TELEPHONE SET - MODFED FO USE WTH F (MD) O 30-TYPE VOCE COUPLE (See Note) EMOVE FOM CONNECT TO WE O 589AJ KEY LEAD TEM. NETWOK STP BL-V V-B L D Modifications to connect BL-W Exclusion vo ice coupler to any line W-BL picked up in telephone (Ordered set 0-W Separately) W-0 0-V - V-0 Mtg Cord V-BL ET Operation of cut-off key 589/\J Y-B 2T disables CV CV w Operation of cut-off key 589AJ B 2 disables TMTH. TMT 589AJ KEY TEM. STP E * EB * EB E J-1 CT C NETWOK c Note: efer to Fig. 8 for connections to F (MD) or 30-type voice coupler. f a 3-type speakerphone is required, connect as shown in appropriate section in Division 512. *nsulate and store. Page 22

23 SS 5, SECTON TABLE 0 MODFCATON OF TELEPHONE SET FO USE WTH 30-TYPE VOCE COUPLE Mounting cord at connecting block :;: lnside wire conn blk to voice coupler Basic modifications to connect voice coupler to telephone set and line Disable TMT Disable CV LEAD DESG CONNECTONS SET MODFCATONS WE O 42A 30- EMOVE FOM CONNECT TO LEAD CONN TYPE TEM NET- TEM NET- BLK COUPLE STP WOK STP WOK T W-BL G BL-W Tl V-G B 1 G-V y B 1 y 2 638B S- L2 1 v 1 8 B 1 c EXCN \V 3 L2 BK 3 Line B E1 8 Switch G L2 1 i\dd Strap 3 F 638B S- 1 G 1 6 'l' l'v!t 6 G 638B G 3 G-BK F L2 - CV \V L2 oi'[nsu late and store unusl'd leads. Page 23

24 BSP 46J..J _1974..QJ-24.jpg Scanned by Frank Harrell (CowboyFrank) Castle ock,;, C!< Oio"'"""do>_FC!o"-' b2"b3 20m16G2<J_ 1 o"1\ 30"''36" SECTON TABLE P 1542A NDUCTO CONNECTONS TO TELEPHONE SETS MODFED FO F 1542A NDUCTO TEMNALS. G1 LEAD DESG T1 TELEPHONE SETS 502B F 558C/D 558F 565LK 712B 2502B 2565LK 2712B Clip 41 66E on on on on on Conn on NET NET NET NET NET Blk NET 2511F on on NET NET 1 1 Clip 42 E2 El E L2 on on on on on Conn on TS TS TS TS TS Blk TS 9 3 on on TS TS y T 2 L on on on on on on TS NET TS TS TS TS 12 2 on on TS TS B 1 L on on on on on on TS NET TS TS TS TS 16 1 on on TS TS *Connect to appropriate mounting cord leads or terminals on 66E connecting block. See Fig. 9 and appropriate telephone set figure or table. Terminals and G of 1542A inductor are connected to 1 and 2 of 30-type voice coupler, or 4 and 5 of F-57948(MD) voice coupler. Page Pages