beautypg.com

AT&T DEFINITY 7200 series User Manual

Page 11

background image

CONTENTS

xi

_

______________________________________________________________________________________

_

______________________________________________________________________________________

_

______________________________________________________________________________________

Figure 6-3. Direct Link DCS Connections

6-5

Figure 6-4. Minimized Link Connections

6-6

Figure 6-5. DCIU/PI Linkage in a DCS Cluster

6-7

Figure 6-6. Short Haul Analog Signaling: System 75/G1 to System 75/G1 Via DSU

6-8

Figure 6-7. Long Haul Analog Signaling: System 75/G1 to System 75/G1 Via Modem

6-9

Figure 6-8. Long Haul Digital Signaling: System 75/G1 to System 75/G1 Via AVD DS1

6-9

Figure 6-9. Long Haul Digital Signaling: System 75/G1 to System 75/G1 Via ISDN PRI

6-9

Figure 6-10. Short Haul Digital Signaling: System 75/G1 to System 75/G1 — Direct Via MPDM

or MTDM

6-10

Figure 6-11. Short Haul Analog Signaling: System 85/G2 to System 85/G2 Via DSU

6-10

Figure 6-12. Long Haul Analog Signaling: System 85/G2 to System 85/G2 Via Modem

6-11

Figure 6-13. Long Haul Digital Signaling: System 85/G2 to System 85/G2 Via ISDN PRI

6-11

Figure 6-14. Short Haul Analog Signaling: System 85/G2 to System 85/G2 — Direct Via IDI

(Isolating Data Interface)

6-11

Figure 6-15. Short Haul Analog Signaling: System 75/G1 to System 85/G2 — Direct Via

DSU

6-12

Figure 6-16. Long Haul Analog Signaling: System 75/G1 to System 85/G2 — Direct Via

Modem

6-12

Figure 6-17. Long Haul Digital Signaling: System 75/G1 to System 85/G2 Via AVD DS1

6-13

Figure 6-18. Long Haul Digital Signaling: System 75/G1 to System 85/G2 Via ISDN PRI

6-13

Figure 6-19. Short Haul Digital Signaling: System 75/G1 to System 85/G2 — Direct Via

MPDM

6-14

Figure 6-20. AUDIX in a DCS Network

6-20

Figure 7-1. Possible Data Connections

7-3

Figure 7-2. Synchronous vs. Asynchronous Communication

7-5

Figure 7-3. Modes of Link Operation

7-6

Figure 7-4. Serial vs. Parallel

7-7

Figure 7-5. Off-Premises Data-Only Extension — Configurations

7-12

Figure 8-1. PC/PBX and PC/ISDN 3270 Emulation Connections

8-4

Figure 8-3. External Modem Pool Using Intelligent Modems (Hayes-compatible)

8-11

Figure 8-4. Integrated Modem Pool

8-11

Figure 8-5. Modem Pooling over a DS1 Channel

8-12

Figure 8-6. Outside DTE Access to LAN

8-15

Figure 8-7. Outside PC Access to a LAN Operating with StarGROUP Software

8-17

Figure 8-8. Asynchronous Communications from LANs Operating with StarGROUP

Software 8-17