Specifications

Excalibur Multirate DAP Installation and Operation
3-2
Cable Connections
After the DAP has been placed in a suitable location, the necessary cable connections can
be made. All interface connectors are located on the DAP's rear panel as shown in Figure
3-1.
NMI
EXT
ALM
DED SW56 DL
DTE
POWER
Figure 3-1. Excalibur Multirate DAP Rear Panel
Connecting to the DTE
The Excalibur Multirate DAP provides a 25-pin RS-232-E female connector, labeled
DTE, for connecting to the DTE. The dual interface DAP is equipped with a strap-
selectable RS-232-E or V.35 interface. The correct cable or adapter to use depends on
the interface selected:
• RS-232-E - Use a standard EIA RS-232 cable (25-pin male to 25-pin female) to
make this connection. This cable is typically supplied with the DTE. To connect
to the DTE, plug the male end of the cable into the DAP and plug the female end
into the DTE. Figure 3-2 illustrates this connection. Table 3-1 lists the
pin/signal assignments for this connector.
• V.35 - Use Adapter Part No. 27C522-02 (25-pin male to 34-pin female) to make
this connection. This adapter is provided with the dual interface DAP. Use a
standard V.35 cable (34-pin male to 34-pin female) to make this connection.
This cable is typically supplied with the DTE. To connect to the DTE, plug the
male end of the cable into the adapter and plug the female end into the DTE.
Figure 3-3 illustrates this connection. Table 3-2 lists the pin/signal assignments
for this connector. (Older dual interface DAPs, Models 15-05A and 15-05B, are
equipped with a 34-pin female connector, labeled DTE V.35, for connecting to
the DTE. Use a standard V.35 cable to make this connection. To connect to the
DTE, plug the male end of the cable into the DAP and plug the female end into
the DTE. The pin/signal assignments for this connector are identical to those
listed in Table 3-2.)