Bell System Practices 830 Connections page 7

Scanned by Frank Harrell, {Cowboy Frank) Castle Rock, Colorado Feb 23, 2012 22:47:16
BSP 512-740-471-i0 6_1979-09-Q7 .jpg
SPEAKERPHONE CONNECTIONS
WIRE
LEAD
OR
DESIG
LEAD
Line
Switch
Lead
T1
Leads
R1
Adapter
AG
Cord'
LK
P 3t
P 4t
A1
(See Note)
Note: This change i s necessary o n mo dular type sets.
sets, (0) l ea d is on terminal 22.
Insula te and store spa re leads.
•
Rotary dial telephone set.
t
TOUCH-TONE telephone set.
t
§ T e r mina l of n etwork
RR
for TOUCH-TONE dial sets.
TABLE A
COLOR REMOVE
Term. 1 of
Connect these leads
Amplifier
together using spare
PWB Assy
terminal in set or
D-161488 conne ctor
S·W
Term. 1 of a mplifier
BL-R
W-BL
BL-W
W-0
0-W
W-G
G-W
W-BR
O n early production
for r o ta r y dial sets.
ISS 4, SECTION
CONNECT TO
TEL SET TERM.
P WB Assy
6
8
29
3 0
24
10
2 2
Terminal 25
S
12-740-47 1
Page 3