System 75 Or Generic 1 (G1) To System 85 Or Generic 2 (G2); Figure 6-15. Short Haul Analog Signaling: System 75/G1 To System 85/G2 — Direct Via Dsu; Figure 6-16. Long Haul Analog Signaling: System 75/G1 To System 85/G2 — Direct Via Modem - AT&T DEFINITY 2500 series Network Manual

6-12
DISTRIBUTED COMMUNICATIONS SYSTEM (DCS)
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System 75 or Generic 1 (G1) to System 85 or Generic 2 (G2)

PI
TN754
DCP
(DIGITAL LINE)
TN760
(TIE TRUNK)
TN722
OR TN767
(DS1)
SYSTEM 75/G1
Figure 6-15. Short Haul Analog Signaling: System 75/G1 to System 85/G2 — Direct Via DSU
PI
TN754
DCP
(DIGITAL LINE)
TN760
(TIE TRUNK)
TN722
OR TN767
(DS1)
SYSTEM 75/G1
Figure 6-16. Long Haul Analog Signaling: System 75/G1 to System 85/G2 — Direct Via Modem
SIGNALING CHANNEL
MTDM DSU
ANALOG OR DS1 VOICE CHANNEL
SIGNALING CHANNEL
RS232C
MTDM MODEM
ANALOG OR DS1 VOICE CHANNEL
RS449
RS232C
DSU
RS232C
TO RS449
CONVERSION
(TIE TRUNK)
SYSTEM 85/G2
TRADITIONAL
RS232C RS449
MODEM
RS232C
TO RS449
CONVERSION
(TIE TRUNK)
SYSTEM 85/G2
TRADITIONAL
DCIU DCIU
OR
TN760
SN233
(TIE TRUNK)
TN722
ANN11
OR TN767
(DS1)
(DS1)
GENERIC 2
WITH WITH
UNIVERSAL
MODULE MODULE
DCIU DCIU
OR
TN760
SN233
(TIE TRUNK)
TN722
ANN11
OR TN767
(DS1)
(DS1)
GENERIC 2
WITH WITH
UNIVERSAL
MODULE MODULE