AT&T 7500 series Network Router User Manual


 
PUBLIC AND PRIVATE DATA NETWORK CONNECTIONS 8-25
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PUBLIC
SWITCHED
DATA NETWORK
(DOMESTIC)
S85
G1/G2
MPDM,
7400A&B,
7500B
DTE
PRI
POP
POP
PRI
4ESS
4ESS
S85
G1/G2
DTE
MPDM,
7400A&B,
7500B
Figure 8-15. Domestic Public Switched Data Network with ISDN-PRI Facilities (Modes 0, 1, 2, 3)
PUBLIC
SWITCHED
DATA NETWORK
(INTERNATIONAL)
G2
7500B
DTE
BRI
POP
PRI
INT’L
OFFICE
4ESS
TERML
ADPTR
DTE
DCE
Figure 8-16. International Public Switched Data Network with ISDN-PRI Facilities (Modes 0, 1)