Harmonic MediaGrid Installation And Configuration Manual page 45

Chapter 2 System Installation with the Content-
Server 4000 Series
Figure 2–3: Rear Enclosure Mounting
CAUTION: Use only the power cords supplied.
CAUTION: Once the enclosure is installed in the rack, dispose of the lifting straps. Due to the difficulty in
attaching the straps once the enclosure is installed in the rack, the straps are not suitable for removing the
enclosure from the rack.
Continue to the following sections to open the drawers and install the drives.
Opening and Closing a Drawer
CAUTION: To prevent overturning, drawer interlocks stop users from opening both drawers at the same
time. Do not attempt to force open a drawer when the other drawer in the enclosure is already open. In a
rack containing more than one enclosure, do not open more than one drawer per rack at a time.
CAUTION: Operating temperatures inside the enclosure drawers can reach up to 60°C. Take care when
opening drawers and removing drive carriers.
Note the following important points before opening a drawer:
Opening a drawer does not interrupt the functioning of the system, and disk drives can be

hot-swapped while the enclosure continues to operate. However, drawers must not be left
open for longer than two minutes, otherwise airflow and cooling will be compromised.
To reduce the possibility of toppling, only one drawer can be open at any one time.

The drawer locks into place when opened all the way. To reduce pinching hazards, two

latches must be released before the drawer can be pushed back in.
Each drawer can be locked shut by turning both anti-tamper locks clockwise using a

screwdriver with a Torx T20 bit.
IMPORTANT: During normal operation, drawers must be kept shut to ensure correct airflow and
cooling.
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Rack Mounting the Harmonic MediaGrid 4000 Series System
45 Harmonic MediaGrid Release 4.1