Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario

 NT8D02 and NTDK16 Digital Line cards

The Digital Line card provides 16 voice and 16 data communication links.

The 32 port NT8D02 Digital Line card is supported in the MG 1000S and 
MG 1000S Expansion. 

You can install this card in any IPE slot. 

The NTDK16 is a 48 port card supported only in the Chassis system. It is 
based on the NT8D02 Digital Line card and is functionally equivalent to three 
NT8D02s, and configured as cards 4, 5, and 6 in the main chassis. It uses A94 
Digital Line Interface chips (DLIC) to provide the interface between the 
Digital sets and the system. 

The NTDK16 Digital Line card can only be installed in slot 4 of the main 
chassis which is slotted to prevent accidental insertion of other cards.

The Digital Line card circuitry is mounted on a 31.75 cm by 25.40 cm 
(12.5 in. by 10 in.) printed circuit board. The NT8D02 is a double-sided PCB, 
whereas the NTDK16 is 4 layers, but standard thickness. Both cards connect 
to the backplane through a 120-pin or 160-pin edge connector.

The faceplate of the NT8D02 Digital Line card is equipped with a red LED 
that lights when the card is disabled. See Figure 101 on 

. When the 

card is installed, the LED remains lit for two to five seconds as a self-test runs. 
If the self-test completes successfully, the LED flashes three times and 
remains lit until the card is configured and enabled in software, then the LED 
goes out. If the LED continually flashes or remains weakly lit, replace the 
card.

Note: The NTDK16AA has one LED. This LED shows the status of 
Card 4. The NTDK16BA has three LEDs. These LEDs show the status 
of Cards 4, 5, and 6 configured on the NTDK16.