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YML856 Rev3 NCT480 IP DSLAM User GuideNCT480 IP DSLAM User Guide
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Ventilation
The NCT480 fans maintain a suitable operating temperature for the internal circuitry. Ensure that the air
intake vents at the left side of the box and the air exhaust vents on the right side of the box are not obstructed
in anyway.
Figure 3-1 NCT480 Ventilation Control Diagram
Field Description
Fan unit
4
Air flow
7 (CFM)
Air pressure
3 (mmH20)
Speed per fan
6000 (RPM)
Noise level
26 (dBA)
Table 3-2 System Air-Flow Specification
Space
The NCT480 system fits in either a 19-inch (48.26 cm) wide rack or a 23-inch (58.42 cm) wide rack.
The NCT480 is 1.96 inches (1U) in height and 10.2 inches (26 cm) in depth. Depending on your configuration
type, plan accordingly so that the CO rack accommodates your needs.
Power
The NCT480 mini IP-DSLAM using built-in power converter unit, the built-in power converter unit is required a
VDC power source for it needs. The voltage is from -36 VDC to -60 VDC with power consumption of 85W.
Before you connect the system to a power source, verify that the power source is properly grounded and that
it falls within the internal power supply rating.