Heat ventilation Flexible size Network Rack Cabinet Electromagnetic
Air Management Unit
The airflow management unit is mainly used to prevent air from
circulating repeatedly in the cabinet and improve the cooling
efficiency of the equipment room. Usually divided into passive and
active two modes.
1. Passive airflow management unit
Passive airflow management units often use passive components to
change the distribution of airflow. For example, the blanking plate
promotes normal air circulation in the enclosure by occupying
unused rack space, and is modular, tool-less design that can be
quickly and easily installed into an EIA-31019 in. rack or has a
square mounting hole In the cabinet.
Metal baffles are used in the case of threaded guides, which allow
the airflow to be blocked while allowing the cable to pass from the
front of the rack to the back of the rack.
Using an air control baffle kit consisting of lU, 2U, 4U, 8U
baffles prevents air recirculation by occupying unused rack space.
2. Active airflow management unit
Active airflow management units often use active devices to change
the flow of airflow in the cabinet. According to different
functions, there are the following types.
(1) Side-to-side airflow distribution. Rack equipment with lateral
air flow poses many challenges for IT facility managers, especially
in the area of refrigeration. Because most cabinets are designed
for front-to-back airflow, it is difficult to maintain ideal
operating temperatures in side-ventilated equipment. The
cabinet-side air supply unit considers better safety and
composition. It allows the cabinets to be placed side by side one
by one without blocking the air flow.
The rack-side air supply unit is usually a 2U cabinet with air
supply products for lateral air flow between network devices or
servers. It sucks the air with adjusted temperature and humidity
from the front of the cabinet and sends it to the airflow inlet on
the side of the network equipment. In this way, the life of the
equipment is extended by supplying an appropriate inlet
This product is recommended for one or more network devices stacked
in a rack. The cabinet side air supply unit can be placed above or
below the network equipment. The user can configure the air flow
through the interchangeable airflow guide vanes.
(2) Rear airflow management. In a high-density device environment,
traditional heat dissipation methods are generally inefficient.
High-density rack installations can cause IT equipment to overheat
and cause downtime. The rack exhaust device collects the hot air
that is exhausted and returns it to the ventilation ducts,
eliminating hotspots in the data. With a temperature-based
automatic fan speed adjustment mechanism, the fan can automatically
adjust the speed for optimal performance. With the device's LCD
display, users can view rack temperatures, monitor alarm
conditions, and adjust device settings. The rack exhaust can be
remotely monitored and controlled through the integrated network
management card. This space-saving product is installed on the back
of the cabinet that meets the requirements without occupying the
space of the table.
(3) Front airflow management. The rack-mounted front air
distribution unit is a unique rack mounted fan tray product that
works with existing precision air conditioning systems to deliver
cold air to the equipment in the enclosure. The air distribution
equipment is connected to the living floor and directs the
supplementary air directly into the cabinet to prevent it from
mixing with the outside hot air before reaching the equipment
The rack type air distribution device can eliminate the temperature
difference between the top and bottom of the casing, and it can
also prevent the recirculation of exhaust gas with high temperature
from the entrance into the casing.
For rack enclosures, rack-mounted air conditioning equipment with a
rated load of more than 1.5 kW is suitable. It can provide air flow
at a maximum of 3.0 kW. If underground air-conditioning equipment
cannot meet the needs of nearby telecommunications equipment, the
above-mentioned equipment must also be used on the living floor.