Nortel Networks Circuit Card 사용자 설명서

 NT7D16 Data Access card

The DAC functions fully when operating within the following specified 
conditions. See Table 166.

The DAC has a predicted mean time between failure (MTBF) of 8 years at 
45 degrees Celsius. The mean time to repair (MTTR) is 1 hour.

The DAC is fully supported in any card slot in either the main or expansion 
cabinet without any hardware modification. Insert the DAC into any available 
card slot and secure it in place using the locklatches.

To cable out the DAC, run a standard 25-pair cable to the cross connect, or 
use one of the following breakout cables in conjunction with an Amphenol 
50-pin female-to-female gender converter:

•

QCAD318A50-pin Amphenol to 6 female DB25 connectors

•

QCAD319A50-pin Amphenol to 6 male DB25 connectors

Note: For Cabinet system, the format to be used in response to the “TN” 
prompt must be one of the following:

CC 00 00 UUCC - Card Slot

or

CC UUUU - Unit Number

Ambient temperature

0 to 60 degrees C

40 to 70 degrees C

Humidity

5% to 95%

5% to 95%