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8-30 PUBLIC AND PRIVATE DATA NETWORK CONNECTIONS
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VOICE
CHANNELS
AT&T
PUBLIC
NETWORK
PUBLIC
SWITCHED
DATA NETWORK
S75/S85
G1/G2
MPDM/M1*
DTE
DS1 (ROBBED BIT) TRUNKS
POP
POP
DS1 (ROBBED BIT) TRUNKS
4ESS
4ESS
•
DACS
S75/S85
G1/G2
DTEMPDM/M1*
DATA
CHANNELS
DATA
CHANNELS
Figure 8-21. Private Data Network with Robbed Bit, Fractional T1 Facilities (Mode 1)
Satellite Private Data Network Links
For satellite private data network links, AT&T offers the SKYNET Digital Service. This service allows
AT&T to provide business users with a cost-effective, private network through wide area coverage
satellites. Transport rates from 56 kbps to 1.544 Mbps are available.
The service is available within the contiguous 48 states extending into US Caribbean locations and Hawaii.
Earth stations can be provided on a dedicated basis on customer premises, or on a shared-use basis using
terrestrial access.