MT56DSU2 Owner’s Manual
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The Mu11iDSU56K DIP switches are shown and described below.
Figure 2-1 MuIttDSU56K Board Layout
2.2.1 12-Position DIP Switch (#1-12)
The 12-position DIP switch is used to select the data rate, clocking, RTS control, DSR control, AsynclSync
operation, diagnostic modes (Loopback Test, Test Pattern), Circuit Assurance, and System Status. The
default settings are shown in Table 2-1. If you want to make changes to one of these settings, refer to
section 2.3.
2.2.2 4-Position DIP Switch (#13-16)
The 4-position DIP switch is used to select Async Word Length, Elastic Store, and Anti-Streaming options.
The defaults are 10-Bit Async Word Length, Elastic Store disabled, and Anti-Streaming disabled. If
changes to these settings are required, refer to section 2.3.
2.3 Changing the Default DIP Switch Settings
Use Table 2-1 to determine the DIP switch setting changes required for your MultiDSU56K to operate in
your particular environment. You may want to record your switch setting changes for future reference (e.g.,
troubleshooting, equipment moves/changes, calling Tech Support). The DIP switches are illustrated in
Figure 2-1.
