Bell System Practices AT&T 502 Reference page 13

LEAD OESIG
T
T
TO
LI�IE LINE
EXCL
2
I
S
R
[
R
T OR 8
RINGER
CKT
l
R
(NOTE 6
Rl
Tl
P4
SPEAKER­
PHONE P3
SYSTEM
K
L
A OR AG
SIG CKT
NOTES:
I.
2.
3.
4.
5.
6.
7.
ell
BSP 502-501-102-i02_1971-07-13.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Jan 30, 2012 00:05:59
T 2)
R
(
T
E
MOUNTING CORD NO TERM.
P
S I
(\o/-BR) (BK]
2
(W-81. . ) ]G]
E2
(R-0) ]BR-BK)
T
A
T
]BR- T )
(O-R I
R
{BL-W) ]R ]
I
{BR-W)
(R-BL) ]BR-G)
] )
BR-
(BL-R)
R
(G-w)
(w )
-G ]0-G)
I
(G-R
II
( R -G)
10
(w-s) o
] )
(o-w)
(W-0)
]BL)
9
(G) LEAD IS CONNECTED TO F TERMINAL IN DIAL SETS AND RR TERMINAL IN MANUAL SE
OLDER SETS HAVE A 0160 CORD. NEWER 5110 SETS HAVE A 016F CORD.
CO
U WO E AND R PICKUP fEATURES
S N O LEADS IN THE I-Ll NE
A A I T L
-L E BLE G PROVIDE fOR EXCLUSION
T IN CONNECTIONS IN T
PICKUP A
(Y) OR
ON LINE (R-Y) (BK)
2,CONNECT AND OR
3
AND 4,RESPECTIVELY.
B K
7-TYPE BUZZER C MAY BE SUBSTITUTED fOR
448
RA T
A ON A E
LINE AUOIBL£ SIGNAL.
PRIVATE
CONNECTIONS, OR (BR-R)
fOR RINGER TERMINATE (BL-R)
I
N
2
CORD LEADS TO LINE I OR L E AT CONNECTING
LINE SWITCH SEQUENCE, HANDSET REMOVED;
be ab-
-MAKES BREAKS
de-MAKES fg-BREAKS
Fig. 7-511C/D Telephone Set Conn•dions, 2-Line Pickup, Signaling, Exclusion, and Speakerphone
Y
LINE KE EXCLUSION KEY TERMS.
4)
)
(NOTE ON
( K
B
NET.
Ll
(5-Gl
(G)
[
)
]
(B K G -T
K
IWI
(81.. ) A
(Tl
[
]
-T
R
IRl
L2
ITI
G
(W)
(Bl)
S.
T
ONLY.
LINE I.
EXCLUSION
ON
fOR
D
LE TO TERMINALS
EXCLUSION A S
(G-Y) KEY
COMMON OR
THE RINGER AS A
(BR-G)
OR MOUNTING
AND (R-Bl)
BLOCK.
C4A 7G, 7H, OR
RINGER 90 DIAL
5
{NOTE
6)
(Gl
AND
(BK)
y(NOTE
{BL)
lSI
I
)
DP
-
I
( 5 R
265on
(G
OR
(R)
R
R
(WI
(GI
[5-Y)
[S-BR)
[ -R)
f
S
{R)
(WI
(WI
(T)
ITI
l
I
S
(Y)[S-W]
(BR)[S-G]
G3-TYPE
UNE SWITCH
7)
(NOTE
0 p
-DIAL PULSE
CONTACTS
QN-
DIAL OfF-NORMAL CONTACTS
( ) -CURRENT COLOR CODE
( ) -MD COLOR CODE
NETWORK
425E
I)
B
GN
R
>
�
u
�
�
�
HANDSET