D4BJ
TERM.
G3-TYPE
425E NET.
IITG
S
T
R
I
P
HANDSET
CORD
TIP
(G)
RING (R)
A
(BK)
6
(Y)
5
AI
3
(BK)
B
0
4
0
(W)
�,..
(R)
(W)
G
N
NOTES:
I, SET WIRED FOR IAI OR IA2 KTS. TO
PROVIDE SEPARATE RINGER NOV[:
FROI4
•
(BK) RINGER LEAD
F
e
(S) STRAP LEAD
L2
e
(Y) MTG CORD LEAD
5
e
(BK) MTG CORD LEAD
6
IF CAPACITOR IS NOT REQUIRED IN SERIES
WITH RINGER NOV£ (R) RINGER LEAD FROM K TO A.
2. FOR MANUAL SERVICE:
SEPARATE RINGER-
NOVE MOUNTiNG CORD CONDUCTOR (G) FROM
TERMINAL
f
TO RR ON NETWORK.
lAlOR IA2 KTS-
NOV£ MOUNTING CORD CONDUCTOR (G) AND (BK)
RINGER LEAD FROM TERN I NAL f TO RR ON
NETWORK.
REPLACE DIAL WITH APPROPRIATE APPARATUS BLANK.
3.
WHEN BOTH FEATURES ARE REQUIRED,REPLACE
4-CONOUCTOR MOUNTING CORD WITH 6-CONOUCTOR
MOUNTING CORD AND CONNECT (BL) AND (W) L EAO S
TO (BK) AND (R) RINGER L£ADS,R£SP£CTIVELY.
US£ 0-161488 CONNECTORS OR SPAR£ TERMINALS.
4. TO PREVENT FALSE HOLD COHO IT I ON WHEN HANDSET
IS RESTOREO,SWITCH CttHACTS
d ,e,
MUST BREAK
BEFORE
b,c,
BREAK.
ISS
3,
SECTION 502-580-405
C4-TYPE
LI
NE SW
IT
C
H
7-TYPE (
liD)
PE
RINGER
(NOTES
4
AND 6
l
(NOTES 1,2,
3,
5,7)
(BK)
(R)
(G)
(W)
(Y)
(BR)
(BK)
(Rl
5.
CONNECTIONS FOR C4B RINGER
SHOWN.
SETS
WITH C4A RINGER WIRED AS fOLLOWS:
e
(BK)
TO f
•
(S)
TO K
•
(S-R)
TO A
e
(R)
TO L2
6. LINE
SWITCH
SEQUENCE,HANDSET REMOVED.
(I )
be
MAKES
(2)
de
MAKES
(3)
g f
BREAKS
OR 9-TY
OIAL
IBL)
(G)
OR
(BL)
(W)
(W)
7.
TO SILENCE RINGER PERMANENTLY DISCONNECT
(BK) RINGER LEAD. INSULATE AND STORE
OP
DIAL PULSE CONTACT.
ON
DIAL OFF-NORMAL CONTACT.
DP
ON
fig. 2---*Later 500L/M Telephone Set, Connections With Current Line Switch Lead Colors, and Terminal Stri ...
Page
3
BSP 502-580-405-i03_1975-11-03.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb 04,2012 12:10:15
