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SECTION
502-5 0 1 - 1 1 5
LEAD
CONN
D48J
DESIG
BLOCK
MTG
CORD
( NOTE 2)
TIP (G)
RING ( fO
GRD(YI
TRANSFORMER
20
Page
SSP 502-501-115-i02_1971-0S-20.jpg
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Jan 29, 2012 23:56:18
TERM
STRIP
(G)
E 2
0
0
6
0
2.
0
(Y)
El
(BK )
PART
;:;"
�
OF
I
CH
584 KEY
(S·G)
(S·R)
• Fig.
2 1 -SOO U
and
Telephone
Connection••
50 1 U
Set,
9C, 7C (MD), OR 7D (MD) DIAL
b
( S-Y)
(5-BR)
(G)
425B(MD)
0
NETWORK
0
L2
G
0
RR
Ll
eJ
A
GN
� +
( S-RI
(S-HK)
(BK)
TRMTR RCVR
Gl OR G3-TYPE HANDSET
NOTES:
I. FOR NEGATIVE STATION S IN OFFICES WITHOUT
ANI, R LEAD FROM 426 A TUBE MAY BE CONNECTED
TO G TERMINAL IF RINGER OPERATION IS
MARGINAL.
00
NOT USE 25 FOOT MOUNTING CORD BEC A U S E
2.
THE ADDED RE SISTANCE MAY BE T O HIGH FOR
ADEQUATE ILLUMINATION OF L A M P .
3. INDIVIDUAL OR BRIDGED.
4. TIP PARTY, IOOOOIDENT GRD (SOOU SET).
5. TIP PARTY, 26500 IOENT GRD (SOOU SET).
6. NEGATIVE RING PARTY (SOIU SET).
7. POSITIVE RING PARTY (501U SET).
I
REFER TO TABLE
FOR LINE AND RINGER
8.
CONNECTIONS NOT SHOWN.
9.
LINE SWITCH SEQUENCE HANDSET REMOVED.
a
(I) be-MAKES (3)
b-BREAKS
DP-
(2) de-MAKES (4)Qf-BREAKS
DIAL PULSE CONTACT
ON-DIAL OFF-NORMAL CONTACT
(W )
(W)
DP
(BL)
·F
R
(W)
j
(5)
k-MAKES
TPA 542542
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