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Telenetics 2185
3-15
Digital Bridging Application Example
One of the most common applications for your 2185 is as a digital
bridge. In this instance, a 2185 is used to connect a large number of
local and remote asynchronous terminals to a mainframe computer at a
central site. Figure 3-9 shows this application.
In this application, the main channel of the 2185 connects to a host com-
puter through a front-end processor. The data rate is 9. 6 kbps and the
format is synchronous. Since the main channel is connected to a DTE-
type device, the main channel on the 2185 is set to DTE.
All three subchannels are set to operate at 9. 6 kbps, as they must be the
same as the main channel. Subchannels one and two are set to DTE,
since they are connected directly to controllers. Subchannel three is set
to DCE, as it connects to a modem. The following charts show the cor-
rect switch settings for this particular application.