Nortel Networks 553-3001-211 manual Installing the Data Access card, Environmental, Reliability

NT7D16 Data Access card Page 493 of 894

Environmental

The DAC functions fully when operating within the following specified conditions. See Table 161.

Table 161

DAC environmental specifications

Specification	Operating	Storage
Ambient temperature	0 to 60 degrees C	40 to 70 degrees C
Humidity	5% to 95%	5% to 95%

Reliability

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.

Installing the Data Access card

Cabinet system

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

Circuit Card Description and Installation