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Page 396 of 894 NT6D80 MSDL card
553-3001-211 Standard 2.00 September 2004
Cable requirements
The MSDL card includes four high-density 26-pin (SCSI II) female
connectors for ports and one 8-pin miniature DIN connector for the monitor
port. See Figure 83 on page 397 for a diagram of the MSDL cabling
configuration.
A D-Channel on the MSDL requires a connection from the appropriate
MSDL port connector to the DCH connector located on the ISDN PRI trunk
faceplate.
Other operations on the MSDL are connected to external devices such as
terminals and modems. To complete one of these connections, connect the
appropriate I/O connector on the MSDL to a connector on the I/O panel at the
back of the module where the MSDL is installed. If a terminal is connected
to the regular SDI port, use 8 bit, VT100 terminal emulation. If the terminal
is connected to the SDI/STA port with line mode editing, use 8 bit, VT220
terminal emulation.
To determine the type and number of cables required to connect to MSDL
cards, you must determine the type of operation you wish to run and select the
appropriate cable to connect the operation to the MSDL port. Different types
of cables, as described in Table 150 on page 398, connect the MSDL port to
a device:
• NTND26, used to connect the MSDL port to the ISDN PRI trunk
connector J5, for DCH
• QCAD328, when cabling between two different columns, that is, I/O to
I/O (when MSDL is in one row and QPC720 is in another row)
• NTND98AA (J5 of QPC720 to I/O panel)
• NTND27, used to connect the MSDL port to the I/O panel at the rear of
the module, for other interface functions