AT&T System 85 manual 7400B Plus Data Module …………………………………………………………

Figure 5-2. The 7400B Plus Data Module ………………………………………………………… 5-10

Figure 5-2. Block Diagram of the 7400B Interface ………………………………………………… 5-12

Figure 5-3.	The 8400B Plus Data Module ………………………………………………………… 5-18
Figure 5-2. Typical Installation of the U.S. Configuration, including Telephone and
	Separate Power Supply ………………………………………………………………… 5-19
Figure 5-3. Typical Installation of the International Configuration, including Telephone
	and Separate Power Supply …………………………………………………………… 5-20
Figure 5-4. Typical Installation of the U.S. and International Configuration, including
	Telephone and Closet Power Supply ………………………………………………… 5-21
Figure 5-5.	The 7500B Data Module ……………………………………………………………… 5-28
Figure 5-6.	Digital Terminal Data Module mounted on a 7405D Voice Terminal ……………… 5-36
Figure 5-2.	Block Diagram of DTDM Interfaces …………………………………………………… 5-37
Figure 5-3.	The Optional Z702AL1 Data Service Unit shown with 7407D01B Voice Terminal 5-42

Figure 5-2. Block Diagram of Z702AL1 Data Service Unit Interfaces …………………………… 5-43

Figure 5-3.	The 703A Data Service Unit …………………………………………………………… 5-47
Figure 5-2.	Block Diagram of 703A Data Service Unit …………………………………………… 5-49
Figure 5-3.	The DEFINITY High Speed Link ……………………………………………………… 5-53
Figure 5-2.	Switched Network Application ………………………………………………………… 5-58
Figure 5-3. Permanent (Private Line) Applications………………………………………………… 5-60

Figure 5-4. The Processor Data Module (stand-alone model) …………………………………… 5-63

Figure 5-5. The Trunk Data Module (stand-alone model) ………………………………………… 5-68

Figure 5-6.	The MTDM, the Stand-alone model …………………………………………………… 5-72
Figure 5-7.	The 3270A or 3270T Data Module …………………………………………………… 5-77
Figure 5-2.	3270C Data Module …………………………………………………………………… 5-80
Figure 5-3.	The Z3A Asynchronous Data Unit …………………………………………………… 5-85

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