Bell System Practices 43B Installation, Operation And Maintenance Manual page 14

TELEPHONE SET
[
I ST
ALL
BUTTON
I
$ HOLD
KS- 15724 LI
D 10DE
I
BI
400D KTU
~–—+
0
0
530
)IAL
+'2
d'
f&-
&
08
L
+
6
L
04
03
&
-0'
1
—
TO KS- 16886
L2
Y
TRNSF OR
EQU I V
I
I
RING
1
I
TO
co
TIP
(NoTE 2)
NOTE :
I . FOR COMPLETE CONNECT 10N I NFORMAT 10N
FOR PROGRAMED 229B KTU I S
SEE FIG. 5.
2. USE FKSY LAMP CIRCUIT TOGETHER WITH
CONTACT OF 227B KTU WHEN SPARE L I NE
SWITCH CONTACT ISJST BE USEO FOR A
LEAD CONTROL .
S[E SET CONNCCT 10NS
FOR WIRING KS-15724 LI DIODE.
@ RESTRICTED NODE
@ UNRESTRICTED NOOE
Fig. 12—53B (MD) Dial, Key Telephone System line and Single Station Use With Optional Mode, Connections
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