Coastcom D/I Mux III System

Chapter 3. Installation
73
Data Circuits
Data connections are made via the DB-25 female backplane connectors on the D/I MUX III, shown below
in figure 3-18. An adapter cable is needed to connect the Data Terminal Equipment (DTE) to the D/I
Mux III. The D/I Mux III end of the cable must have a male DB-25 connector. The opposite end of the
cable must have the appropriate connector for matching user equipment. Please consult the appropriate
data card manual for detailed cable pinouts/connections.
Figure 3-18. RS-232C Female Data Circuit (DCE)
Figure 3-19. RS-449 Female Data Circuit