Bell 881A105 User manual

BELLSYSTEMPRACTICES SECTION 503-200-109
AT&TCo Standard Issue 2, January1976
TELEPHONE SETS
881A105, 881A106, 881A107, 881A108, 881B105, 881B106,
881B107, AND 881B108
1. GENERAL
1.01 This section provides identification, installation,
and connection information for the DESIGN
LINE* telephone sets (Candlestick*_) (Fig. 1).
*Trademark AT&TCo.
**Registered Trademark of American Telecommunication
Corporation.
Warnlng: Telephone apparatusor wiring
shah not be instalIed inlocationwhere
minimum separation fromotherwiring as
specitied in Section 460-300-149 cannot be
maintained.
1.02This section is reissuedto:
•Add information for the881B105,106,107,
and 108 modular telephone sets
• Change Fig. 7 and 8
•Add Fig. 9 and 10.
1.03 The customer'spremises must beproperly
wired withanappropriate connecting block
or jackin order toaccept theD4BU-29 plug-ended
mounting cord or 225Aadapter furnished witheach
telephone set.
2. IDENTIFICATION !i!!_
2.01 The 881A105,881A106,881A107, and 881A108 .......
(rotary dial) equipped telephone sets are
new DESIGN LINE telephone sets being made
available to the customer. SThe 881B105,106,Fig. I--881A105 or 881B105DESIGN LINE Telephone
107,and 108 telephone sets, are the (rotary dial) Set
equipped modular telephone sets.Q The customer
buys the housing from the telephone company and
NOTICE
Not for use or disclosure outside the
Bell System except under written agreement
Printed inU.S.A.Page 1

SECTION503-200-109
the telephone company retains ownership of the 3.06 Line and Ringer Connections:
transmission and signaling components. (Fig. 2
and 3). (1)For singleline and two-partyservice,refer
to TableB.
Ordering Guide (Refer to Table A) (2) For adjustments and ringer cutoff feature
2.02 BasicTelephone Set Ordering Information: of theP1Aringer,refer to Section 501-259-101.
Example: Set,Telephone,881A105t is a 4. REMOVAL OF TELEPHONECOMPANY-OWNED
black set equipped with a rotary dial (Fig. 1). COMPONENTS
tRefer to Table A for available codes and 4.01 When it is desired to discontinue telephone
ordering guide, service of these DESIGN LINE telephone
sets,proceed as follows:
2.03 These telephone sets are intended to be
used as single line or two-party desk sets Note: Remove telephone company-owned
and are not recommended for use on four- and components that can be easily removed. Refer
eight-party service, to Fig. 3 for identification of company-owned
components.
(1) Remove four base mounting screws from
3. INSTALLATION AND CONNECTIONS the bottom of the telephone set and remove
bottom base (Fig. 4).
3.01 These telephone sets are furnished from
the factory fully assembled and wired for (2) Remove one dial frame and two line switch
bridged ringing. To connect the telephone set, mounting screws from the base and remove
plug the mounting cord into a 625A jack or if the dial frame and line switch (Fig. 5).
existing jack is a 548A or equivalent, use the 225A
adapter furnished with each set. (3) Remove one network, two ringer and three
dial mounting screws from the base and
3.02 The internal connections for the 881A- and remove network, ringer and dial (Fig. 6).
881B-type telephone sets, for nonkey system
use, are shown in Fig. 7 and 9. (4) Unscrew transmitter and receiver caps and
remove T1 transmitter and U3 receiver units.
3.03 Connections for 1A KTS do not require any
telephone set modifications and are wired (5) Replace dial frame and base using four screws
same as Fig. 7. removed in Step (1), see Fig. 4.
3.04 Connections for use with 1A1 or 1A2 KTS 4.02 Follow local procedures for returning telephone
are shown in Fig. 8 and 10. Table C includes company-owned components.
necessary wiring modification required for 1A1 or
1A2 key telephone system use. 4.03 When it is desired to return a set to Western
Electric for repair, it should be packed using
3.05 To gain access to the interior of these sets the D-180600 Kit of Parts which contains packing
for wiring changes, refer to Part 4. materials and instructions.
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ISS 2, SECTION 503-200-109
DIAL MOUNTING
FRAME
Fig. 2mCustomer-Owned Components
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SECTION 503-200-109
Fig. 3---I_Telephone Company-Owned Components_l
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ISS 2, SECTION 503-200-109
$TABLE A4
AVAILABLE CODES AND ORDERING GUIDE
TEL SET TRMTR RCVR MTG HANDSET
CODE DIAL UNIT UNIT CORD CORD DESCRIPTION
Rotary Dial
881B105 H4DU-03 Black
Candlestick
Rotary Dial
881B106 H4DU-53 Red
6U-120 Candlestick
or T1 U3 D4BU-29 Rotary Dial
6UA-120
881B107 H4DU-58 White
Candlestick
Rotary Dial
881B108 H4DU-58 Stars and Stripes
Candlestick
Rotary Dial
881A105" H4CJ-03 Black
Candlestick
Rotary Dial
881A106" H4CJ-53 Red
Candlestick
6U-120 T1 U3 D4BU-29 Rotary Dial
881A107" H4CJ-58 White
Candlestick
Rotary Dial
881A108" H4CJ-58 Stars and Stripes
Candlestick
*MD
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SECTION 503-200-109
TABLE B
LINE AND RINGER CONNECTIONSt
TIP PARTY
INDIVID. RING
WIRE OR LEAD COLOR OR NO IDENT IDENTIFYING GROUND
PARTY
BRIDGED GROUND 1000_'-_2650_"_
Inside Wire at R RRR R R
Jack G G G G G G
Y Y Y Y Y Y
BK B B B B B
623P4 Line R A A L1 F F
Jack Assy G L1 L1 A L2 L2
Y G G G G G
BK L2 L2 L2 * *
R K K K K K
Ringer S-R * * * * L1
S * * * L1 *
BK L1 G G G G
Line Switch Y A A A L2 L2
W F F F B B
• Insulated and stored.
tFor access to set wiring follow applicable steps in Part 4.
BASE MOUNTING SCREWS
TABLEC
MODIFICATIONS FOR 1A1 OR 1A2 KTS *
NETWORK TERMINAL
LEAD COLOR REMOVE CONNECT
_FROM TO
S A L2
Line Y A L2
Switch BR C G
G L1 A
steps in Part 4. W F C
.....623P4 Line G L1 F
Jack Assy
Ringer BK L1 F
• For access to telephone set wiring follow applicable
Fig. 4---881A105, 881A106, 881AI07,or 881A108
Telephone Set, Bottom View
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ISS 2, SECTION503-200-109
................... !ii iiiii_,i;
!
Fig. 5--Removing Line Switch and Dial Mounting Frame
Fig. 6--Removing Dial, Network, and Ringer
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ISS2, SECTION 503-200-109
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11 Pages