Telenetics 2185 manual Leased-Line Backup Application Example, Switch Three

		Telenetics 2185
Table 3-8. Switch Three
Switch
Segment	Setting		Reason
3-1	Up		Main Channel connection to DTE
3-2	Up		Subchannel one connection to DTE
3-3	Up		Subchannel two connection to DTE
3-4	Down		Subchannel three connection to DCE
3-5	XX		Subchannel four not used
3-6	XX		Subchannel five not used

Leased-Line Backup Application Example

Another common application example for your 2185 is the Leased-Line Backup application. In this example, the 2185 is again used to connect a mainframe to remote users. The primary connection is through a digital network via DSUs (Digital Service Units). The backup route is through leased-lines via dial modems. Figure 3-10 shows this application.

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