ADTRAN NetVanta 1748F Series, Руководство по установке оборудования

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Unit Installation ADTRAN 1748F Switch
20 Copyright © 2016 ADTRAN, Inc. 61700558F1-34B
Figure 6. Install Unit in Rack
Switch Cooling Requirements
Wherever the switch is located, be sure to pay close attention to switch cooling requirements. The location
should be well ventilated and provide unrestricted air flow at the front, back, and sides of the switch. If the air
flow is insufficient, it may cause the switch to overheat and possibly fail.
The switch includes a removable fan tray module located in the rear of the switch. The module options may have
either a front-to-back (F2B) airflow direction or a back-to-front (B2F) airflow direction. The switch’s plug-in
power supply modules also include a fan, which can be either F2B or B2F airflow direction. For proper switch
cooling, all installed modules must have a matching airflow direction.The following figure shows the airflow
through the switch.
Figure 7. Switch Cooling
Rack Mounting the Unit Using the Rack Mounting Brackets
Step Action
1 Install the rack mounting brackets on the unit. To avoid damaging the unit, use only the screws
shipped with the mounting brackets when attaching them to the chassis (see
Figure 5 ).
2 To allow proper grounding, scrape the paint from the rack around the mounting holes where the
unit will be positioned.
3 Position the unit in a stationary equipment rack. This unit occupies 1U of space.
4 Have an assistant hold the unit in position as you install two mounting bolts (not provided)
through the unit’s brackets and into the equipment rack using a #2 Phillips-head screwdriver (see
Figure 6 ).
5 If installing a single switch only proceed to Supplying Power to the Unit on page 22 . If installing
multiple switched repeat steps 1 through 4 and refer to
B2F Airflow
F2B Airflow