Bell System Practices AT&T 502, Reference

Page: 8 / 28

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