Overview Page 73 of 894

Power consumption

The SDI cards obtain their power directly from the module backplane. Power consumption for each of the cards is shown in Table 9.

Table 9

Power consumption

 

 

Maximum power consumption

 

 

 

 

Voltage

NT8D41BA

QPC513

QPC841

 

 

 

 

+5 VDC ±5%

1.0 Amp

3.0 Amp

1.5 Amp

+12 VDC

±5%

100 mA

50 mA

100 mA

–12 VDC

±5%

100 mA

50 mA

100 mA

 

 

 

 

 

Environmental

The SDI cards operate without degradation under the conditions listed in Table 10.

Table 10

Environmental specifications

Specification

Operation

Storage

 

 

 

Ambient temperature

0° to 50°C;

–55° to +70°C;

 

(32° to 122°F)

(–58° to 158°F)

 

 

 

Relative humidity

5% to 95%

0% to 95%

(non-condensing)

 

 

 

 

 

Altitude

3500m;

15000m;

 

(11000 ft)

(50000 ft)

 

 

 

Electrostatic discharge

The SDI cards meet the requirements of the IEC 801-2, clause 8.0 procedure. They can withstand a direct discharge of ±5 to ±20 kV without being damaged.

Circuit Card Description and Installation

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Nortel Networks 553-3001-211 manual Power consumption, Environmental, Electrostatic discharge, NT8D41BA