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Default DIP Switches (Model U, V.35)
The V.35 interface is provided so that you can connect the I-modem to a
bridge, router, or multiplexer, as a replacement or backup for a CSU/DSU
and leased lines.
To change the setting to V.35, flip the DIP switches on the bottom of the
I-modem to the following positions (DIP switches 1 and 2 aren't shown in
the figure because their settings are not relevant):
Figure 8.2 Default DIP Switches for the External Model U Courier
Default DIP Switches (Model S/T)
If you have Model S/T, the default DIP switches are the same as in figure
8.2.
In addition, there are additional default settings: DIP switch 1 and 2 are
set ON. DIP switch 3 through 12 are set OFF.
Use the following chart to set termination on the Model S/T.
To set this termination
0 Ohm termination
50 Ohm termination
100 Ohm termination
DIP Switches and Jumpers
Set these DIP switches
9 through 12 OFF
9 and 11 OFF
10 and 12 ON
9 and 11 ON
10 and 12 OFF
12-3
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