Cable Requirements - Avaya Nortel Communication Server 1000 Reference

5. Push the MSDL firmly into the connector using the locking devices as levers by
6. Push the card-locking devices firmly against the front panel of the card so they latch
7. Observe the red LED on the MSDL faceplate. If it turns on, flashes three times, and
8. If the LED turns on and stays on continuously without flashing three times, the card
9. Connect the cables. The installation is complete.
10. Unplug the MSDL card and reinsert it. If the red LED still does not flash three times,
11. After 10 minutes unplug the card and reinsert it. If the card still does not flash three

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
page 332 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
types on page 332, 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
Circuit Card Reference
pushing them toward the card's front panel.
to the front lip in the module and to the post on the card.
stays on continuously, the MSDL is operating correctly but is not yet enabled. Go
to step 7.
may be defective. Go to steps 8 and 9.
leave the card installed for approximately 10 minutes to allow the card to be
initialized.
times, the card is defective and must be replaced.
Figure 92: MSDL cabling
Table 149: Cable
July 2011
Installation
on
331