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Installation 46
Model 3088 Series User Manual 3 • RocketLink-G installation
The DCE/DTE strap is located on the top side of the 3088/D pc board (See figure 12). The arrows on the top
of the strap indicate the configuration of the X.21 port (for example, if the DCE arrows are pointing toward
the DB-15 connector, the X.21 port is wired as a DCE). Change the DCE/DTE orientation by pulling the
strap out of its socket, rotating it 180°, then plugging the strap back into the socket. You will see that the
DCE/DTE arrows now point in the opposite directions, showing the new configuration of the X.21 port. To
close the case, fit the two halves together snugly and snap them back in place.
Figure 12. Setting the DCE/DTE Strap (X.21 only)
Connecting the Model 3088/K serial interface
Connecting the Model 3088/K to an E1 Network
The Model 3088/K supports E1 network connections. This section describes how to connect the network to
your Model 3088/K.
The interconnecting cables shall be acceptable for external use
and shall be rated for the proper application with respect to volt-
age, current, anticipated temperature, flammability, and
mechanical serviceability.
DCE/DTE Strap
DB-15 Connector
DCE
DTE
CAUTION