Nortel Circuit Card, Installation Manual, Page: 75 / 908

Overview Page 75 of 906
Circuit Card Description and Installation
Power consumption
The SDI cards obtain their power directly from the module backplane. Power
consumption for each of the cards is shown in Table 10.
Environmental
The SDI cards operate without degradation under the conditions listed in
Table 11.
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.
Table 10
Power consumption
Voltage
Maximum power consumption
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
Table 11
Environmental specifications
Specification Operation Storage
Ambient temperature 0° to 50°C;
(32° to 122°F)
–55° to +70°C;
(–58° to 158°F)
Relative humidity
(non-condensing)
5% to 95% 0% to 95%
Altitude 3500m;
(11000 ft)
15000m;
(50000 ft)