Bell System Practices 636A Manual page 15

Cutoff sta on
lAl or 1A2 sys
Cutoff sta on lA sys without
hold feature
Cutoff station on lA system
with hold feature
Cutoff external
ringer or buzzer
Cutoff ringer in set
(Note 1 )
Cutoff
Buzzer in
Set
(Note 1
and 2)
Monitoring
* Terminal on TBVI.
t
Terminal on telephone set terminal board .
t
Terminal on set network.
( ) Current color code.
[ ] MD color code.
Notes:
Insulate and store BZ and BZl leads at buzzer or telephone set terminal board.
1 .
2. The (BL-Y) (0-R] and (Y-BL) (0-G] mounting cord leads should be insulated and stored at the
equipment end when the bridged spade-tipped leads are used in the set.
502-610-410-i02_19 72-Q4-15.jpg
BSP
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Feb
5998 ( TURNKEY) KEY CONNECTIONS
FEATURE
R
(G-BK)
[R-W]
To KTS Equip
To KTS
Equip
To Aux
Relay used
to cut off
T, R, B,
and
To KTS
Equip
To KTS
Equip
AC Buzzer To BZ
and BZ1
DC Buzzer
at KTS
Equip
Com. Audible
To MON
Equip
TABLE C
FIRST MODULE KEY LEADS
5TH
6TH
T A T
R
(BK-G) (BK-BR) (BL-Y) (Y-BL)
[G-Y] [G-BL] [ O -R]
[0-G]
To Ext Sta
To Ext
Sta
H
To Ext
Ringer or
Buzzer
ISS 2, SECTION S02-610-410
SPADE-TIPPED lEADS
OF MOUNTING CORD
A
(Y-0) (BL-Y) (0-Y)
[0-BK] [ O-R]
I nsulate and store
Insulate and store
Insulate
and
Store
Insulate and Store
3t
A t
(Note 2) (Note 2)
c
A
c
D
c
Cap.
T
R
TBI TBI
(Y-0) (BR-BK)
[G-Ill]
SG* SG*
I nsulate and
Store
Insulate
and
Store
Page 15