Bell System Practices AT&T 502 Reference page 17

PLUG
EXTE N S I O N
STAT ION OR
EXTENSION 30
R I NGER
23
50
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4 4
S I GNAL
C I RCU I T 19
33
AI GRO 2
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Fig. 10-- S l l F and
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NOTES:
I . S l l f TEL[PI10NE SET
EXCEPT EQUI PPED W I HI 020J
SPADE - T I PPED MOUNTING CORD.
2. S l l f
MOD i r Y
TO
SET A S SHOWN,
SET ACCOR D I NG TO TABLE J .
3 . WHEN BUZZER I S USED
425E NETWORK
MOUNT I NG CORD l[ AD r ROM
17
T[RMINAL
CDHNECT BUZZER ACROSS TERMINALS
16
AND 1 9 .
4 . T O S I LENCE R I NGER PERMANENTLY.
REMOVE (BK ) F !I NGER LEAD fROM
TERMINAL 2 INSULATE AND STORE .
5.
S(T 5 ARE r ACTORY W I RED F"OR
BRIDGED R I NG I NG SERV I C E .
CONNECT I ON S r O R H I B R I NGER
SHOW N . I F H I A RINGER IS USED
WIRE AS FOLLOWS:
( B K ) TO 2 Of TERM. STR I P
( S ) TO K O r NeTWORK
TO
( S - R ) A Or NETWORK
{ R ) TO O f
I
REMOVE
(S) STRAP fROM A OF
NFTWORK AND
LINE
SWITCH SEQ, HANDSET REMOVED:
6 .
be-MAKES
de-
MAKES
* - INSULATE AND STORE.
OP-D IAL PULSE C O
ON- DIAL OfF NORMAL
DENT
I (A L
15 I
OR H TELEPHONE
REWIRE
CHANGE (G-R )
1 6 .
T O TERMINAL
TERM. STRIP
I OF
TERM. STRIP.
ob-BREAKS
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-BREAKS
N T AC T S
CONTACTS
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