Bell 502-723-401 Service Manual
BELLSYSTEMPRACTICES ADDENDUM 502-723-401
AT&TCo Standard Issue 1, June 1982
SERVICE
2702B, 2702BM, AND 2702BMG TELEPHONE SETS
CONNECTIONS
1. GENERAL the set cannot be used for multiparty service con-
1.001 This addendum supplements Section 502-
723-401, Issue 9. Place this pink sheet ahead 2. CHANGES TO SECTION
of Page 1 of the section.
1.002 This addendum is issued for the following A is provided in this addendum.
reasons:
(a) To show the D-180229 Kit of Parts (polarity
guard) manufacture discontinued (MD) 1.07 Telephone sets not marked "I-PTY" are
(b) To revise Table A nections. Sets marked "I-PTY" cannot be used for
(c) To show that 2702BM telephone sets manufac- individual or bridged ringing is required, a 2702B2M
tured after 6-1-82 will be marked (under or or 2702B2MG base, housing, and handset must be
near date code) "I-PTY". This marking indicates ordered separately.
nections.
2.001 On Page 8, Table A is obsolete. A new Table
2.002 On Page 1, add paragraph 1.07 as follows:
adaptable for all classes of line and ringer con-
multiparty service connections. If service other than
Not for use or disclosure outside the
Bell System except under written agreemer_t
NOTICE
Printed inU.S.A. Page 1
ADDENDUM 502-723-401
TABLE A
POLARITY GUARD CONNECTIONS (SEE NOTE)
RINGER GUARD LEAD COLOR NET. NET. GUARD
M-Type Line
Ringer Switch
P-Type D-180896 BR C S
Ringer Kit of Parts
Note: For use when specified by local instructions for end-to-end signaling installa-
tions.
* Terminals 3 and 4 are on terminal board which is part of D-180229 (MD) Kit of
Parts.
POLARITY OR FROM POLARITY
D-181063 BR C S
Kit of Parts
D-180229 (MD) R 3*
Kit of Parts
WIRE REMOVE
Line W F T
Switch
Polarity G F
Guard
Dial BK RR 3*
Polarity BK 4*
Guard
Line W F T
Switch
Polarity G F
Guard
W C
BR C 4*
G RR
W C
W C
CONNECTTO
Page 2
2 Pages
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