Bell System Practices AC1 Reference page 14

SECTION 502-303-1 01
C
ON N
O
R
BLK
STA
G
( N OTE
01
TO
Al
L IGHT
T RAN SF
Tl
P
R G
IN
'
NOT ES
I. STATION G ROUND MAY BE OMITTED If
L
HOT R(QUIR(O FOR PROTECTION OF DIAL LIGHT TRANSFORMER.
be C S
IN [ SWITCH Off-HOOK
2.
de
LO ES
CLOSES
15
3. OISC ON N(CT (S
I
USED AND TIP PARTY IDENTifYING GROUND IS HOT PROVIDED,
4.
N5ULATE AND STORE.
LAMP AND RES ISTOR ARE PART Of HSAD HANDSET CORD ONLY
sn PLUG.
( M (SSAG[ WAIT I N G LAMP FEATURE).
IN
Page 14
BSP 502-303-101-i03_1972-09-14.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Jan 31,2012 22:02:53
P
048W-29 t
IA
RINGER
MTG (NOTE 51
( Y )
( B K)
( G I
( R )
(s-R)
IGSon
soon
soon
( B K)
NOT
REQUIRED
ob
S(QU[NCE•
jk CLOSES
OPENS
)
LEAD FROM TERMINAL B \/HEN HSAA HANDSET CORD
LEAD IS NOT TERMINHED
(Y]
Fig. 21-AD1 Telephone Base Wiring Diagram (C urrent Model)
LINE
T ERMINAL
SWITCH
BOARD
(NOTE 2)
.( B L)
)
(G
(II)
( G )
(BK)
STRAP
h 3)
NOTE
( )
W
(R )
Is)
I Y )
(BR)
(SRI
F
OR SERVICE;
5. SET WIRED fOR INOIVIDU.&.l OR BRIDGED SERVICE,
6.
OTHrR PARTY SERVIC E REFER TO RINGER CONNECTION TABLE.
CHANGE TO 53A LAMP
SET CORD AND (AD I BASE) MOUNTING CORD EXCEEDS 15 FEET.
*
INSULATED AND STORED
FOR KTS USE THE "A" AND "At" LEADS ARE (Yl AND {BKl IN THE
t
04BW-29 MTG CORD AND (Yl AND (W) I N THE D5AL OR 05AN
MTG CORD.
(Y)
(BK) (BK]
(G)
(R) ( R )
[R]
If
COMBINED LENGTH OF HAND THEPHON[
DIAL
6)
LIGHT
(NOTE
FOR All