User's Manual

Ripwave Base Station I&C Guide Navini Networks, Inc.
200 Part #40-00047-00 Rev D v1.0
February 28, 2003
NEMA Type 3R
NEMA Type 3R enclosures are rated for indoor or outdoor use to provide a degree of protection
against falling rain and sleet and to remain undamaged by the formation of ice on the enclosure.
NEMA Type 3R enclosures do not provide protection against submersion. Typical examples of
NEMA 3R cabinets are external enclosures containing above-ground electrical panels, and other
equipment, that may or may not require ventilation
Finishes
Outdoor cabinets are normally finished with UV resistant powder-coated polyurethane coatings.
The finishes are baked on after coating, provide excellent resistance to damage, are very durable,
and provide superior corrosion resistance. Normal colors are tan, white, and green, in shades
typically used by traditional telecom service providers. Other types of coatings and colors may
be available from a cabinet manufacturer to meet specific zoning requirements. In the event that
a cabinet manufacturer is unable to provide a specific custom color, the cabinet manufacturer
will usually be able to provide a refinishing process and third-party coating sources that can
supply coatings that are compatible with the original factory finish.
Bullet Resistance
Due to the emphasis on being light-weight, low maintenance, and corrosion resistance, outdoor
cabinets are not normally constructed to provide bullet resistance, although a cabinet
manufacturer may be able to provide this functionality.
Expandability
Outdoor cabinets come in both single- and multi-cabinet styles in order to meet the design
criteria of the customer. Manufacturer designs of multi-bay cabinets may utilize either single
cabinet modular sections that bolt together to form larger multi-bay cabinets with seals between
cabinets, or welded multi-bay cabinets that do not utilize seals between cabinet equipment
mounting bays. Care should be taken to ensure that multi-bay cabinet designs or expansions of
single-bay cabinets provide adequate airflow between cabinet equipment bays.
Lifting Eyes
Cabinets are usually equipped by the manufacturer with lifting eyes to permit placement on site
using a crane. Depending on the manufacturer, the lifting eyes may or may not be removable.
Equipment Access
BTS equipment will require an outdoor cabinet that provides front and rear access for installation
and maintenance of the BTS equipment.