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DCIU
DCIU
OR
TN760
SN232
(TIE TRUNK)
(TIE TRUNK)
TN722
ANN11
OR TN767
(DS1)
(DS1)
GENERIC 2
SYSTEM 85/G2
WITH
WITH
UNIVERSAL
TRADITIONAL
MODULE
MODULE
Figure 6-12. Long Haul Analog Signaling: System 85/G2 to System 85/G2 Via Modem
DCIU
DCIU
TN754
SN270B
(DIGITAL
(DIGITAL
LINE)
OR
TN767
ANN35
(PRI)
GENERIC 2
SYSTEM 85 (R2V4)/G2
WITH
WITH
UNIVERSAL
TRADITIONAL
MODULE
MODULE
*ONE OF THE 23 B-CHANNELS IS USED FOR DCS SIGNALING: THE REMAINING 22 CHANNELS CAN BE USED FOR VOICE.
Figure 6-13. Long Haul Digital Signaling: System 85/G2 to System 85/G2 Via ISDN PRI
DCIU
DCIU
OR
TN760
SN232
(TIE TRUNK)
(TIE TRUNK)
TN722
ANN11
OR TN767
(DS1)
(DS1)
GENERIC 2
SYSTEM 85/G2
WITH
WITH
UNIVERSAL
TRADITIONAL
MODULE
MODULE
Figure 6-14. Short Haul Analog Signaling: System 85/G2 to System 85/G2 — Direct Via IDI (Isolating
Data Interface)
SIGNALING CHANNEL
RS449
RS232C
MODEM
RS449 TO RS232C CONVERSION
ANALOG OR DS1 VOICE CHANNEL
SIGNALING CHANNEL
RS449 CONVERSION
RS449
MPDM
LINE)
ISDN PRI
(PRI)
SIGNALING CHANNEL
RS449
ANALOG OR DS1 VOICE CHANNEL
DISTRIBUTED COMMUNICATIONS SYSTEM (DCS)
RS232C
RS449
MODEM
RS232C TO
RS449
MPDM
RS449
105A
IDI
DCIU
DCIU
OR
TN760
SN233
(TIE TRUNK)
(TIE TRUNK)
TN722
ANN11
OR TN767
(DS1)
(DS1)
SYSTEM 85/G2
GENERIC 2
WITH
WITH
TRADITIONAL
UNIVERSAL
MODULE
MODULE
DCIU
DCIU
SN270B
TN754
(DIGITAL
(DIGITAL
LINE)
LINE)
OR
ANN35
TN767
(PRI)
(PRI)
SYSTEM 85 (R2V4)/G2
GENERIC 2
WITH
WITH
TRADITIONAL
UNIVERSAL
MODULE
MODULE
DCIU
DCIU
OR
SN233
TN760
(TIE TRUNK)
(TIE TRUNK)
ANN11
TN722
(DS1)
OR TN767
(DS1)
SYSTEM 85/G2
GENERIC 2
WITH
WITH
TRADITIONAL
UNIVERSAL
MODULE
MODULE
6-11
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