Bell System Practices AT&T 502 Reference page 8

.,
Q
CQ
..
"'
FEATURES
RINGER IN
SET
AS
USED
0 �
ffi�
� z �
�
�"' o-�
"'"'
���
�E.: ��
8 � ;:
1
1
1
2
2
(S) strap connected to A of network.
•
Note: Refer to notes 2, 3, 4, Fig. 5.
(SIGNAliNG INCLUDED WITH All
FEATURES)
RINGER
IN SET
USED AS
�
�
0�
��
:;; � a:
� >--�
�
� � "'
� "'
"'"'
�� EE�
��
.
I
1
2
2
2
BSP
502-501-102-i02_1971-07-08.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Jan 30, 2012 00:03:55
510E/F LINE AND RINGER CONNECTIONS {EQUIPPED WITH 6-CONDUCTOR MOUNTING CORD)
TURN �EY
USED T O
MOUNTING
CUT OFF
CORD
LEADS
�
��
��
g�
y
R G 8� 8L
ii!: ��
L2 L1 3 4
3 4
L2 L1
L2 L1 3 4
1 2 3 4 5
I 3 4 El
2
5 1 1 A/B L I N E A N D RINGER C O N N ECTIONS (INTERNAL CONN ECTIONS)
FEATURES
EXCLUSION
TURN KEY
KEY
USED TO
USED TO
CUT OFF
CUT OFF
�
��
� � ffi
i�
��
� �"'
lil �
EE�
Bl-W W-Bl
BR-W
L2
Ll
L2 Ll
L2 L1
1
2
1
2
I 2
TABLE D
CONNECTIONS TO TERMINALS INSIDE SET
C4A
TURN
RINGER
�EY
LEADS
LEADS
(NOTE)
w s
S·R S-G R 8K S-R
5 6 L2 L 1 L2 L1 K A
Ll
6 K A
6 L 2 1 2
5 6 G R L2 L1 K A
6 L2 K A
L1 1 2
E2 L2 E1 E2 A A
L1
TABLE E
CONNECTIONS TO TERMINALS INSIDE SET
MOUNTING
CORD
LEADS
w-o
s-w
W-BR 0-W G-W W·G
3 4 5 6 El E2 R-W
4
3 5 6 El E2 R-W
3 4 5 E1 E2
6 R-W
6
4 6
3 E1 E2 R-W
3 4 6 E1 E2
5 R-W
'
3 5 6 E1 E2 R-W
EXTERNAL CONNECTIONS FOR
MOUNTING CORD
C48
RINGER LINE LINE SIGNAL
LEADS 1 2 CIRCUIT
(NOTE)
s•
s
8� R RING TIP RING TIP
L2 L1 K R G BL
K
1 2 R G B L
L2 L 1 K R G DL
K BK
1 2 R G y BL
El BK
E2 A R G y
EXCLUSION
TURN �EY
�EY LEADS
(NOTE 3,
LEADS
FIG. 6)
W·S S·R S-G R-Y G-Y 8L
w L2 L2 El E2
Ll Ll
w L2 Ll L2 Ll El E2
w G R L2 Ll E1 E2
w L2 L1 1 E1 E2
2
w L2 Ll I 2 El E2
w L2 L1 R-W w E1 E2
"'
m
n
...
6
z
"'
?
COM OR
�
PVT
CUTOFF
.
LINE
-
CIRCUIT
RINGER
s
CIRCUIT
GRD RING TIP R
8
w y IlK
w y BK
y
w BK
w
w
BL
C4A
RINGER
LEADS
(NOTE 4,
FIG. 6)
w s
R 8�
S·R
w K
R-W A
I
2 K A
R-W w K A
R-W w K A
R-W w A
A
El E2 A