Figure 9-1. Dedicated/Permanent Switched Connections — Configurations (Sheet 1-Or 2) - AT&T DEFINITY 2500 series Network Manual

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HIGH-USAGE
DATA
TERMINAL
A. SYSTEM 75 OR GENERIC 1 - PSC USING STANDARD BUILDING WIRING
DTE MODEM
B. SYSTEM 85 (R2V3) TO SYSTEM 85 (R2V3 OR V4) OR GENERIC 2 OVER DS1
HIGH-USAGE
DATA TERMINAL
OR
MULTIPLEXER
C. SYSTEM 75, SYSTEM 85 (R2V4), GENERIC 1 OR GENERIC 2 - PSC/DSC USING PRIVATE NETWORK DIGITAL FACILITIES
Figure 9-1. Dedicated/Permanent Switched Connections — Configurations (Sheet 1-or-2)
ORIGINATING
S75/G1
DATA MODULE
MPDM
DIGITAL
LINE PORT
4-WIRE, E&M
TIE TRUNK
S85/G2
DSC
DS1
4-WIRE, PRIVATE-LINE
MODEMS
S75/S85/G1/G2
MPDM
DIGITAL
LINE PORT
PSC OR DSC
(24TH-CHANNEL OR ISDN-PRI MOS SIGNALING
COMMUNICATION TYPE MUST BE AVD OR DATA)
DATA COMMUNICATIONS CONFIGURATIONS
MADU SUPPORTS
ASYNCHRONOUS ONLY
HOST
COMPUTER
MADU
OR
FRONT-END
EIA
PROCESSOR
INTERFACE
PSC —
ALSO REFERRED TO AS "SOFTWARE
CONNECTION"
S85/G2
DSC
MODEM
S75/S85/G1/G2
MPDM
PSC OR DSC
9-3
DTE
MULTIPLEXER
OR
COMPUTER