Physical Description - Northern Telecom NT5K17 Description

Physical description

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Configuration information for the NT5K17 DDI trunk card is downloaded
automatically from the CPU during power-up or manually by commands
from maintenance programs.
Measurements
Each NT5K17 DDI trunk card measures as follows:
He ig ht:
De pth:
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.
NT5K17 Direct Dialing Inward Trunk Card 1-3
318 mm (12. 5 i n. )
254 mm (10 in .)
UK Trunk cards description 553-3001-173