Bell System Practices 902A1 Quick Start Manual Download

Page: 6 / 8

SECTION 503-200-102

Page 6

TABLE D

POLARITY GUARD CONNECTIONS

FOR 2902A1 TELEPHONE SET

819040122 (P-90D012) GUARD ASSEMBLY

DIS-

CON-

CONNECT

NECT

LEAD

COLOR

FROM

NET.

POLARITY

GUARD

Dial

Line

Switch

(Note 1)

623P4

Line Cord

(Note 2)

Jack Assy.

Polarity

Guard

Notes:

If wired for bridged service, ring party, tip party

with no identification ground, or

lAl

KTS.

wired for tip party with identification ground.

BSP 503-200-102-i01_1977-06-Q6.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 08, 2012 18:20:29

Summary of Contents for 902A1

Page 1: ...p of the transmission and signaling components 2 02 Refer to Table A for available codes and ordering information 2 03 These telephone sets are intended to be used as single line or two party desk sets and are not recommended for use on four and eight party service Fig 1 2902A1 Telephone Set 2 04 Opt i o n a l Co m p o n e n t or dered separately 819040122 P 90D012 Guard Assembly 3 INSTAllATION AN...

Page 2: ...U 93 35AH3D 2902Al 104 H4DU 104 Color Code White 58 Yellow 93 and Brown 104 BSP 503 200 102 i01_1977 06 02 jpg Scanned by Frank Harrel Cowboy Frank Castle Rock Colorado Feb 08 2012 18 18 56 TABLE A ORDERING GUIDE NET RINGER 4228M PlA 4228N TRMTR RCVR JACK IN UNIT UNIT HANDSET Tl LBl 616W HANDSET CORD JACK 616P MTG CORD JACK 623P 0 w 0 0 ...

Page 3: ...o discontinue telephone service of these DESIGN LINE telephone sets proceed as follows Note Remove telephone company owned components that can be easily removed Refer to Fig 2 TIP PARTY RING NO IDENT PARTY IDENT GROUND R G y B A Ll G L2 K G F c A L2 L2 GROUND 1000it 2650it R R R G G G y y y B B B L1 F F A L2 L2 G G G L2 K K K Ll Ll G G G F B B c A L2 c c L2 A A 1 Unplug cords from set Note When bo...

Page 4: ... from dial brackets Page 4 TIP PARTY RING NO IDENT PARTY IDENT GROUND R G y B A Ll G L2 K G F Ll c A L2 L2 GROUND 1000S1 26SOS1 R R R G G G y y y B B B Ll c c A L2 L2 G G G L2 K K K Ll Ll G G G F B B A Ll Ll c Ll L2 F F L2 A A 10 Reassemble two piece base housing and replace two top and six bottom screws 11 Reassemble two piece handset shell and screw on the receiver and transmitter caps 4 02 Foll...

Page 5: ...ASSEMBLY BASE W EIGHT P TYPE RINGER ISS 1 SECTION 503 200 102 Fig 2 2902A 1 Telephone Set With Two Piece Housing Separated Page 5 BSP 503 200 102 i01_1977 06 0S jpg Scanned by Frank Harrell Cowboy Frank Castle Rock Colorado Feb 08 2012 18 20 14 ...

Page 6: ...Y GUARD Dial BK RR T Line BL Switch Note 1 c s 623P4 R Line Cord Note 2 Jack Assy Polarity G RR Guard w c Notes 1 If wired for bridged service ring party tip party with no identification ground or lAl or 1A2 KTS 2 1f wired for tip party with identification ground BSP 503 200 102 i01_1977 06 Q6 jpg Scanned by Frank Harrell Cowboy Frank Castle Rock Colorado Feb 08 2012 18 20 29 ...

Page 7: ...UST BREAK BEFORE THE LEAD CONTACTS BREAK WHEN USED WITH lAI OR IA2 KTS THE BK AND Y LEADS BECOf E A AND AI AND THE BR LINE SWITCH LEAD MUST BE MOVED FROM L2 TO G OF NET KlRK INSULAT D AND STORED DP DIAL PULSE ON DIAL OFF NORMAL 623P4 JACK ASSY P TYPE RINGER I NOTEII LINE SWITCH NOTE 21 S Hi IYI i t IBRI in Fig 3 902A1 Telephone Set Connections BSP 503 200 102 i01_1977 06 07 jpg Scanned by Frank Ha...

Page 8: ...ND RING LINE SWITCH CONTACTS llST BREAK BEFORE THE A LEAD CONTACTS BREAK liEN USED WITH IA I OR IAZ KTS THE BK AND V lf AOS BECOME A AND 1 AND THE BR LINE SWITCH LEAD 14JST BE MOVED FROM L2 TO G OF NET ORK INSULATED AND STORED PI TYPE LINE NETWORK RINGER SWITCH NOTE I NOTE 2 BI G soon BI Bl BI Fig 4 2902A1 Telephone Set Connections BSP 503 200 102 i01_1977 06 08 jpg Scanned by Frank Harrell Cowboy...

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