Selective Signaling - Bell System Practices TOUCH-A-MATIC 2872A 1M Manual

SECTION 503-603-1 01
TABLE G
CONNECTIONS FOR 2/4-WIRE SERVICE
APPARATUS
LEAD REMOVE
CONNECT
COLOR FROM
TO
BK-G
Net. GN Net. L1
BK Net. R
*
Tel Set
BR-V
*
PSB-17
V· BR
*
PSB-34
v
Net. T
s
Net. F
BR PSB-3
Y-BR Net. L1
D-180494
BL-R
Net. GN
Kit of Parts
G-BK
PSB-17
R-BR
Net. R
R-0
Net. S
BL-Y PSB-34
*
Insulated and Stored.
TABLE H
CONVERSION OF KEYS FOR SIGNALING
SELECTIVE SIGNALING
COLOR : BLUE ORANGE GREEN DROWN
508 PLUG PIN NO: 2 2 2
2
LEAD COLOR :
w
R
BK
y
HPPPPP TBl-3 TBl -2 TBl-2
TB1·2
Key
HPPPPS TB1-3 TBl-2 TBl -2 TBl-2
Functions
t
HPPPSS
TBl-3 TBl-2 TB1 -2 TBl-5
HPPSSS TBl -3 TBl-2 TBl-5
TBl-5
COMMON SIGNALHm (SEE NOTE)
COLOR : BLUE ORANGE GREEN BROWN
508 PLUG
PIN NO: 2 2 2 2
LEAD COLOR:
w
R
BK
y
Key
HPPP*P*S TB1-3 TBl-3 TBl-2 TBl-2
Functions
t
HPP*P*P*S TB1-3 TBl-2 TBl -2
TDl -2
Note:
Remove (DK) strap between TBl-2 and Tn1-3.
!:LATE
2 1
v
s
---
TBl-2 TIH -4
TBl-5 'l'Bl-4
TBl-5 TBl -4
TBl-5 TBl-'1
SLATE
2 1
v s
TBl-2
TBI -3
TBl-2
TBI -3
-- - -- -- - -
• These arrangements use line switch controlled ground for common signal key, used with private or intcrcommunicati,,g
lines. Common signal should be used to operate a common Gignal
reh~ · -
Oo not wire directly to a buzzer.
t
Remove pins
to make
key nonlocking when used for signaling.
Page 34