Seismic-Certified Racks Provide Maximum Durability

Seismic-Certified Racks Provide Maximum Durability
Racks :: A Requirement for Zone 4 Regions, Also Beneficial in Many Other Environments
Network engineers deploying equipment in Zone 3 or Zone 4 rated
geographical areas have a simple choice to make when specifying
equipment racks: put simply, they must use seismic-certified racks
in all installations. However, many other applications benefit from
the design strength of seismic-certified racks.
Stronger welds and heavier-duty metals are just two of the
factors that enhance the strength and durability of seismic racks.
In addition, the general design and construction of a seismic rack
provides greater stability for heavier equipment, helping to ensure
long-term perform- ance of deployed equipment.
Certification is Key
Seismic Rack Type
Available Sizes
Network bays
Height: 7’, 9’, 11’6”
Width: 19”, 23”
Unequal flange racks
Height: 7’, 9’, 11’6”
Width: 19”, 23”
Seismic indoor cabinets
Height: 7’ Width: 19”, 23”
Depth: 36”
Global seismic frames
Height: 7’, 2100 mm, 2200 mm
Width: 19”, 23”, 600 mm
Depth: 300, 450, 600, 750 mm
Heavy duty battery racks
Height: 7’
Width: 23”
Table 1: Size and configuration options for Telect seismic- certified
equipment racks.
Telect offers a full range of seismic-certified equipment racks, in a
comprehensive array of configurations.
Unequal Flange Racks
The standard for most telecom networks, unequal flange racks
feature a design that includes built-in cable management due
to the extension of flanges on the frame posts. Like network
bays, unequal flange racks are available in the widest range of
configurations; for virtually any specification, there’s an unequal
flange rack that will fit perfectly.
Each Telect seismic rack is independently certified to Zone 4
requirements. Different types of racks are engineered to handle
varying weights of equipment (see Table 2 below for details).
When a rack specification is not pre-determined for an application,
using the weight certification is a simple way to determine the
appropriate rack for the installation.
Telect’s line of seismic-certified racks — which includes the
full range of Hendry equipment racks — is one of the most
comprehensive available today.
Seismic Indoor Cabinets
For applications requiring additional security for mounted
equipment, a seismic-certified cabinet is an excellent choice.
Lockable doors, adjustable mounting rails and pivoting surfaces
provide enhanced functionality in Telect cabinets, which are
available in 19” and 23” widths.
Network Bays
Widely used in telecommunications central offices, network bays
provide a basic frame for equipment housing. Guard boxes
support externally mounted electrical strips. Network bays are
available in a comprehensive range of configurations to meet
nearly any specification.
Global Seismic Frames
Global seismic frames meet the requirements of mission- critical
applications worldwide. Combining a robust physi- cal design with
detailed features that address the equip- ment requirements of
different global markets, these innovative frames are available in
North American and ETSI-standard configurations.
Different Racks, Different Features
Weight of Equipment in Rack
Suggested Rack Type
Up to 350 lbs.
Network bays
The foundation of many installations, designed with guard
boxes to support externally mounted electrical strips
Up to 450 lbs.
Unequal flange racks
Build-in cable management sets this rack apart; the
standard for central office applications
Up to 525 lbs.
Seismic indoor cabinets
A complete line of indoor cabinets available as frames or
Up to 850 lbs.
Global seismic frames
For Zone 4 compatibility worldwide; North American and
ETSI stan- dard configurations available
Up to 2,600 lbs.
Heavy-duty battery racks
A single solution for FCC backup power requirements — the
only two-post system on the market
Table 2: Zone 4 seismic certifications (by weight) for Telect seismic equipment racks.
© Telect, Inc., All Rights Reserved, 11.2.11/rev.8
1.509.926.6000 ::
Seismic-Certified Racks Provide Maximum Durability
Racks :: A Requirement for Zone 4 Regions, Also Beneficial in Many Other Environments
Heavy-Duty Battery Racks
FCC Requirements for backup power in communications networks
have made battery backup solutions a key application. Telect
heavy-duty battery racks are the most robust two-post system
available today. Available in -48V and +24V configurations, these
racks support up to five battery shelves (typically four batteries
per shelf) for a high-density, highly durable solution.
The equipment rack is the foundation upon which nearly all
communications equipment deployments must be built. Choosing
a seismic-certified equipment rack helps to make that foundation
as solid as possible.
Oftentimes the rack is a low purchase priority compared to more
costly equipment that will eventually be installed in it; however,
selecting the right rack for the application is a key step in ensuring
ongoing performance.
Furthermore, this unique rack can also accommodate
equipment other than batteries, providing one of the most
versatile and heavy-duty general use seismic-certified equipment
rack solutions available today.
A seismic-certified equipment rack from Telect is the strongest
way to start each installation, whether you’re in a Zone 3 or
Zone 4 area, or are just looking for a higher level of strength
and durability.
Accessories and Hardware
From seismic anchor kits to cable management, Telect provides
all of the accessories required to complete the installation of a
seismic-certified equipment rack. All accessories (and all rack
configurations) are available online at
Figure 1: Sample seismic-certified equipment racks. From left, a network bay, an unequal flange rack, a seismic-certified indoor cabinet, a global
seismic frame, and a heavy-duty battery rack with three shelves of batteries and additional space for other equipment.
© Telect, Inc., All Rights Reserved, 11.2.11/rev.8
1.509.926.6000 ::
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