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BELLSYSTEMPRACTICES SECTION 503-200-115
AT&TCo Standard Issue 2, July 1980
951A1-03 TELEPHONE SET
IDENTIFICATION, INSTALLATION, AND CONNECTIONS
1. GENERAL 2.03 On the recessed rear of the set are four
1.01 This section contains information on the store any excess cordage from the mounting cord
951A1-03 DESIGN LINE* telephone set (Fig. 2).
(Country Junction*). This set is a simulated
antique wall telephone set (Fig. 1). 2.04 The H4EK handset cord is a special antique
1.02 This section is reissued to: both ends.
plastic cord clips which are to be used to
cloth covered cord with a modular plug on
. Revise paragraphs 1.01 and 2.04 2.05 The ringer volume can be adjusted by
e Reverse Fig. 2 and 3. protruding from the bottom front of the set (Fig.
moving the ringer volume control lever
3).
1.03 The customers premise must be properly
wired with an appropriate connecting block 2.06 The handset assembly is a special antique
to accept the D4BU-29 plug-ended mounting cord. design (Fig. 1).
Warning: Telephone apparatus or A. Ordering Guide
wiring shah not be installed in a
location where minimum separation 2.07 Telephone Set Ordering Information:
from other wiring as specified in
Section 460-300-149 cannot be Set, Telephone, 951A1-03 (Complete and
maintained, ready to install.)
2. IDENTIFICATION
2.01 The 951A1-03 rotary dial only equipped the following component parts:
telehone set is a new DESIGN LINE telephone
set being made available to the public. Although • Dial, 8UA
the set comes completely assembled, the customer
only purchases the housing and handset shells. • Cord, Handset, H4EKt
The internal transmission and signaling components
remain the property of the telephone company. • Jack Assembly (Handset Cord), 616RB
2.02 The 951AS1-03 telephone housing • Handset Assembly
(customer-owned) is made of Oak Wood and
has antique nickel metal trim details. The inside • Cord, Mounting, D4BU-29t (14 feet long)
of the set consists of a 951AT telephone unit which
is screw mounted through the rear of the telephone • Jack Assembly (Mounting Cord), 623P4
set (Fig. 2).
* Trademark of American Telephone and Telegraph
Company. • Ringer, P-Type
B. Component Parts
2.08 The 951A1-03 telephone set is comprised of
e Housing, 951AS1-03
Not for use or disclosure outside the
Bell System except under written agreement
NOTICE
Printed in U.S.A. Page 1
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SECTION 503-200-115
TABLE A
LINE AND RINGER CONNECTIONS
(951AI-03 TELEPHONE SET)t
TIP PARTY
WIRE INDIVID. RING NO IDENT
OR COLOR OR GROUND
LEAD BRIDGED PARTY IDENT
R R R R R R
Inside G G G G G G
Wire at
Conn Blk Y Y Y Y Y Y
623P4 G L1 L1 A L2 L2
Line Cord
Jack Assy
Ringer
Line BL C C C * *
Switch BL-W ' A A L1 * *
•Insulatedand stored.
tFor accessto set wiring,referto paragraph3.03.
BK B B B B B
R A A L1 C C
Y G G G G G
BK L2 L2 L2 * *
R K K K K K
S-R * * * * L1
S * * * L1 *
BK L1 G G G G
W F F F B B
G L1 L1 A L1 L1
BR L2 L2 L2 F F
S L2 L2 L2 A A
GROUND
1000_ 2650_
• Unit, Telephone, 951AT however, they can be used on four- and eight-party
• Unit, Transmitter, Tlt connection information on the ringer isolator, refer
• Unit, Receiver, U3t
• Network
• Line Switch. a 630-type modular connecting block, proceed
2.09 These telephone sets are intended to be
used as single line or two-party wall sets, (1) Place the mounting template (shipped with
t Only these items are field replaceable, for
all other repairs set must be returned to (2) Mark two upper and lower mounting holes
Western Electric per paragraph 4.03. on each corner of the template.
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service if a 28A ringer isolator is provided. For
to Section 501-375-101.
3. INSTALLATION AND CONNECTIONS
3.01 To mount the 951A1-03 telephone set over
as follows.
set) over the modular outlet and level it.
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ISS 2, SECTION 503-200-115
Fig. 1--951A1-03 DESIGN LINE Telephone Set
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SECTION 503-200-115
STORAGE CLIPS (4)
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Fig. 2--951A1-03 Telephone Set, Rear View
MOUNTING
SCREWS (5/
MOUNTING
CORD
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ISS 2, SECTION 503-200-115
(3) Drill four 5/16-inch diameter holes and install screw counterclockwise until the front hinged panel
the wall screw anchors provided, of the housing is released and can be opened (Fig.
(4) Discard the four screws used to install the
wall anchors. 3.04 This telephone set is furnished from the
(5) Wind up the excess mounting cord on the ringing.
four plastic storage clips on the rear of the
set. Leave about six inches of cord loose (Fig. 3.05 Line and Ringer Connections.
2).
(6) Plug in the end of the mounting cord and
secure the set to the wall anchors using (2) For adjustments and ringer cut off feature
the four decorative screws and washers provided, of the P-type ringer, refer to Section
3.02 To mount the 951A1-03 telephone set to a
625-type modular connecting block, proceed 3.05 Connections for 1A KTS require no telephone
as follows, set modifications and are wired the same
(1) Make sure the intended mounting location
will allow the 14-foot mounting cord to reach 3.07 Connections for 1A1 and IA2 KTS require
the telephone outlet, moving the brown (BR) line switch lead from
(2) Place the template at a convenient height Fig. 5.
and level it.
(3) Mark the two upper and lower mounting 4. REMOVAL OF TELEPHONE COMPANY-OWNED
holes on each corner of the template. COMPONENTS
3).
factory fully assembled and wired for bridged
(1) Refer to Table A for party line connections.
501-259-101.
as Fig. 4.
L2 on the network to the G terminal as shown in
(4) Drill four 5/16-inch diameter holes and install 4.01 When it is desired to discontinue telephone
the wall screw anchors provided, service on the DESIGN LINE telephone set,
(5) Discard the four screws used to install the
wall anchors. (1) Loosen the four mounting screws and remove
(6) Wind up the excess line cord on the four
plastic hooks on the rear of the set housing (2) Unplug and remove mounting cord from
(Fig. 2). telephone set.
(7) Dress the mounting cord into the channel (3) Loosen five screws in back of housing and
on the back of the telephone set (Fig. 2). remove chassis mounted telephone unit.
(8) Secure the set to the wall anchors using (4) Retrieve any other telephone company-owned
the set of four decorative screws and washers components that can be easily removed.
provided.
(9) Dress the mounting cord to the 625-type
modular connecting block and plug in the 4.02 Follow local procedures for returning
cord. company-owned components.
3.03 To gain access to the interior of the set 4.03 When it is desired to return a set to
for wiring changes, insert a small standard Western-Electric for repair, it should he
blade screwdriver into the key-hole plate on the packed using the D-180600 Kit of Parts which
front of the telephone set (Fig. l) and turn the contains packing materials and instructions.
proceed as follows.
set from wall.
(5) Reassemble housing.
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SECTION 503-200-115
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Fig. 3--951A1-03 Telephone Set With Front Panel Door Open
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ISS 2, SECTION 503-200-115
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SECTION 503-200-115
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8 Pages
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