NT5K17 Direct Dialing Inward Trunk Card 1-3
UK Trunk cards description 553-3001-173
Configuration information for the NT5K17 DDI trunk card is downloaded
automatically from the CPU during power-up or manually by commands
from maintenance programs.
Physical description
Measurements
Each NT5K17 DDI trunk card measures as follows:
He ig ht:
318 mm (12. 5 i n. )
De pth:
254 mm (10 in .)
Connections
The NT5K17 DDI trunk card has eight units. Each trunk unit on the card
connects to the backplane through an 80-pin connector. The backplane is
cabled to the input/output (I/O) panel, and the I/O panel is cabled to the
cross-connect terminal.
At the cross-connect terminal, each unit connects to external apparatus by
A and B leads. For detailed termination and cross-connect information, see
System installation procedures (553—3001—210).
Self-test
When the card is installed, the red Light Emitting Diode (LED) on the
faceplate flashes as the self-test runs. If the self-test completes
successfully, the card is automatically enabled (if it has been configured in
software) and the LED goes out. If the self-test fails, the LED will remain
lit. The LED will also remain lit if one or more units on the card become
disabled while the card is operating.
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United Kingdom
United Kingdom
United Kingdom
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United Kingdom
