Bell System Practices SPOKESMAN 107 Series Manual

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BIU SYSTEM l'tACTICES
AT & TCo Standard
SICTION 463-22 1-100
tu~
I , Jonuory 1910
LOUDSPEAKER SET- 1 07 TYPE
IDENTIFICATION, INSTALLATION, CONNECTION,
OPERATION, AND MAINTENANCE
" SPOKESMAN"'" LOUDSPEAKER
1. GfNERA1
1.01 This section provides information on the
SPOKESMAN loudspeaker, 107A (MD) and
1078 loudspeaker sets (Fig. I, 2, and 3).
1.02 This section is reis:s:ued to:
• Add information on the 02N-50 cord
• Expand information on wiring to
sinah~·line
telephone sets
• Identify typical grandfathertd and registered
wiring arrangement$.
2. IDENTiftCA TtON
2.01
Purpose:
2 .02
• To amplify the incoming side of a telephone
com•er53tion using the 107A (MD) or 1078
loudspeaker set.
• To provide voice signaling on manual intercom
lines using the
una
loudspeaker set (see
S.e1ion 518-010-109).
Applicatio~~:
• For use with station sets on CO. PBX, or
Centrex lines
• Special applications. aueh as private service
systems
• 107B loudspeaker set may be
u~
as a
SPOKESMAN loudspeaker
or Cor voice
signaling on manual intercom,
but
the same
107B cannot
be
used Cor both applications
at
the same 'ime. See
Section 518-010-109
Cor installation, connection, and operation
oC 1078 loudspuker
se-t
installed for voice
signaling on manual intercom.
2.03
Ordering Guide:
• Set, Loudspeaker, 107J3.•.
• Cord,
Mounting,
D4BT-87
(available in
1·
or
14-foot lengths)-for use with 107A (MD)
loudspeaker set
• Cord,
Mounting, 06AF·8'7 (available in 7-,
14·, or 25-foot lengths)-Cor u. s e with 1078
loudspeaker &el
• Housing, S.1, Loudspeaker (see Table A).
(b)
A1sociated A,pparatut (ord•r separa,ely
if r equired)
• CapaciTor, 542C (0.25 " F) - see paragyaph
3.11 Cor
use
NOna
Not for liM or dbdoturt outticM the
0.11 S)'tttm
uttpt undtr
wrht.ton
&gl'ftmttlt
Print~
in U.s.A. . . .. 1