AT&T 1987 AT&T Telephone User Manual


 
SYSTEM 25
CABINET
———————
ZTN82
OR ZTN128
CALL
PROCESSOR
TN758
POOLED
MODEM
TDM
TN726
BUS
DATA
LINE
——
C2
C1
Z210A
400B2
ADAPT.
ADAPT.
C7
——————
2012D
248B
TN742
ANALOG
LINE
CO
TRUNK
FACILITY
PART OF
OCTOPUS
PART OF
CABLE
SIP
——
C2
Z210A
C1
355AF
C3
Z3A4
ADAPT.
ADU
ADAPT.
——
PART OF
SIP
— — — — — — —
——
TRANS.
ADAPT.
CONNECTED
AS OPS
OR CO
FACILITY
CO CABLE
CENTRAL
OFFICE
——————————
SYSTEM
TYPICAL
ADMINISTRATION
MODEM
TERMINAL
(212 TYPE)
OPS OR CO TRUNK
——————————
LEGEND:
C1 -
C2 -
C3 -
OPS -
355AF ADAPTER -
Z3A4 ADU -
248B ADAPTER -
400B2 ADAPTER -
2021D TRANSFORMER -
C7 -
MODULAR CORD (D8W-87) - PEC 2725-07G
OCTOPUS CABLE (WP90780) - PEC 2720-05P
EIA CROSS OVER CABLE (M7U-87) - PEC 2724-30G
OFF PREMISES STATION
RS-23Z RECEPTACLE TO MODULAR JACK PEC 2750-A25
EQUIPPED WITH 3 FOOT RECEPTACLE - PEC 2169-004
MODULARIZES 2012D TRANSFORMER
POWER ADAPTER
15-18V AC TRANSFORMER
PEC 21691
MODULAR POWER CORD (D6AP-87)
Figure 2-50. SAT Off-Premises Switched Connections
2-233