RM471 BLACK BOX, RM471 Datasheet - Page 4

• Manufacturer Part Number: RM471
• Description: 19" SLIDING ADJUSTABLE TOWER S
• Manufacturer: BLACK BOX

3/3/2011
#24208
RM470A-R3: Back view
724-746-5500
blackbox.com
technically Speaking
open frame. There are several things you should consider when
you’re deciding whether you need an enclosed cabinet or a rack.
stability of a cabinet might be important if you’re installing large,
heavy equipment like servers. But if you need frequent access to
all sides of the equipment, an open rack might be more
convenient. And if your equipment needs a lot of ventilation,
you’ll have to be more careful about the air supply if you enclose
it in a cabinet.
environment is open or dusty, for example, you might need the
extra protection of an enclosed cabinet. On the other hand,
a rack might be perfectly adequate in a well-maintained data
center.
installation? A cabinet with a door looks much neater than an
open rack.
with a simple lock and key.
It’s easier to get at all sides of the equipment. But you’ll have
to take other steps to keep the equipment secure—keeping it in
a locked room, for example.
installation styles. Some are freestanding; some are designed
to be mounted on a wall. Others sit on the floor but attach to
the wall for more stability.
a preassembled cabinet. You’re ready to load your equipment
as soon as the cabinet arrives.
Choosing cabinets and racks.
why cabinets? why racks?
when you’re trying to create a professional image,
everything counts.
A cabinet is an enclosure with a door (or doors); a rack is an
First, what equipment will you be putting in it? The extra
Second, in what environment will you be installing it? If the
Don’t neglect aesthetics. Will customers or clients see your
Finally, there’s security. An enclosed cabinet can be locked
On the other hand, there are advantages to open racks, too.
Both cabinets and racks come in all sizes and in many different
If you need to set up your installation in a hurry, you can order
a server cabinet:
specifies guidelines for cabinet certifications. NEMA 12 cabinets
are constructed for indoor use to provide protection against
certain contaminants that might come in contact with the
enclosed equipment. The NEMA 12 designation means a particu-
lar cabinet has met the guidelines, which include protection
against falling dirt, circulating dust, lint, fibers, and dripping or
splashing liquids. Protection against oil and coolant seepage is
also a prerequisite for NEMA 12 certification.
NEMA 12 cabinet. Certain environments put equipment at a
higher risk than others. For example, equipment in industrial
plants is subject to varying degrees of extreme temperature. Even
office buildings generate lots of dust and moisture, which is
detrimental to equipment. NEMA 12 enclosures help to ensure
that your operation suffers from as little downtime as possible.
equipment you need to house. This list can include CPUs, moni-
tors, keyboards, modems, servers, switches, hubs, routers, and
UPSs. Consider the size and weight of all your equipment as well.
The rack must be large and strong enough to hold everything you
have now, and you’ll also want to leave extra room for growth.
Choosing the right server cabinet.
NeMA 12 certification.
Choosing the right rack.
• High-volume airflow. The requirements for additional
• Extra depth to accommodate newer, deeper servers.
• Adjustable rails.
• Rails with M6 square holes. Although 10-32 tapped and
• Front and/or rear accessibility.
Consider this quick checklist of features when choosing
The National Electrical Manufacturers’ Association (NEMA)
Organizations with mission-critical equipment benefit from a
Before you choose a rack, you have to determine what
airflow increase as more servers are mounted in a cabinet.
Additionally, manufacturers are making servers narrower to
increase available space. But with more servers in the same
amount of space, heat buildup is frequently a problem.
drilled holes are sometimes still required, newer hardware
has M6 square holes. Know which type of mounting
equipment you’ll need.
BLACK BOX
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