Bell System Practices AC1 Reference page 16

SECTION 502-303-1 01
Page 16
SSP S02-303-101-i03_1972-09-16.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Jan 31,2012 22:03:41
CONNECTIONS FOR 4-PARTY FULL SELECTIVE
OR 8-PARTY SEMISELECTIVE RINGING USING
426N DIODE (SEE READ IN 1.01)
WIRE OR LEAD
RING
Line Wire
at T I P
Conn Block
TRNSF
T R N S F
Mtg Cord
RING
at.
TIP
Conn Block
A l Only)
TRNSF
( D
TRNSF
Inside Wire
or
Mtg Cord
At
Term. Board
426N Diode*
Ringer
Leads
Strap from A
Line Switch
•Q
Flanged (Gold) base
0
Knob end (housing tip)
t
Insulate and store.
Ca ution: Do not store spade tipped leads under terminal board mounting screws.
TABLE D
LEADS
-RING -TIP
OR
COLOR
R
R R
G G G
y y y
B B
BK
R R R
G G G
y y y
B B
BK
R L2 L2
L1
G L1
y 3 3
1
1
BK
L2
L1
G G
3 3
BK
K
R K
s
B B
G G
S-R
3
3
BK
s
t t
+RING
+TIP
R
R
G G
y y
B B
R
R
G G
y y
B B
L2 L2
L1
L1
3 3
1 1
3 3
G G
3
L1
K K
B
B
G G
L1
L2
t t