Bell System Practices 43B Installation, Operation And Maintenance Manual page 16

i
SECTION 501-165-102
%s21
HI
---- -----
(w) (w)
R9
I 000
MOT
I@--@l
LINE
SWITCH
(
10 cR15
7
x
w
nle0471R3(P -900236 )COMPONENT BOARD AND
R8
.s40163935 LOGIC BOARD
1000
E
I
K6
CR13 r
=1
K?
(NOTE 1)
-\, +
4 )
3
(NOTE 41
/1
R3
C4 +
C7
3000
75
TO
Ib-fll
POWER
1
T \ < :[ .,
37 1ST
22SS KTU
1
(w-BR)
1
~"-
J
I
U
70 FIRST
6
(NOTE 2)
(w-o)
CALL 1>
SUTTON
-1
(Y-BRI I NOTE 8)
B
RING
~--
——
——
t~ I
TO
TEL
sET
TO CO
OR PBX
2 R17 147
I
Iv
A.
I
I
12
K9
I
I
4 )
K9
(R-G)
TIP I
c (OR-V) c
A i I
4 )
J!El
,( ,
"'
" I
(o-w)
I
l.;:=
H (V-BR)
1,
fit)
I
L,-=
cl
2.15
RI
20,000 r (v-o)
4 T
1( I
(G-v)
(o -v)
t
I
J
I
RING 5
w
I
I
L
e'
9S HI C ASSEMBLY
L
K3
(s-v)
(I
P
2"5
K4
LOW (v-s)
( I FREQuENCY
t
I R
2"5
AMPLIFIER
K5
2A5
+
_ C9
T
y 30
d)
KI —"'———
2"5
K2
HIGH
4
'2A5
FREQuENCY
(~
AMPLIFIER
1
I
I
—— ——
——
Fig. 14—53B (MD) Dial Connections,
Factory Wiring, Restricted Mode (Sheet 1 of 2)
Page 16