MINI-LINKEandEMicro
3529
Figure 35 AMM 4U
The units are interconnected through a backplane at the back of t he AM M. All
external connections are made through connectors at the front of the units.
The AMM is made of aluminum. The side walls guide the units and conduct
away the heat. M ounting brackets are screwed to the side walls for installation
in 19" racks and cabinets. The aluminum magazine is chromate coated.
A front panel protects the cables at the unit fronts. It is perforated at the center
to let cooling air through and for visibility of LEDs at the unit fronts. The front
panel is painted dar k gray. It is closed with 2 or 4 screws respectively and folds
down vertically around hinges at its lower edge when opened.
Front cables are routed to the left and right of the access module magazine and
along the cabinet at the rack side walls.
Cooling
Cooling of the access module is accomplished by forced ventilation.
The cooling air enters at the front of the AMM, flows between the units and out
through openings at the back of the magazine on both sides of the backplane.
When the airflow is not sufficient a fan unit placed on top of the AMM in a 19"
rack cools the access module, see also Section 8.9 on page 154.
42
AE/LZT 110 2012 R8C 2002-03-04
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