RJ45 And RJ70

PORTABLE FORCED AIR HEATERS

SAFETY

INFORMATION

WARNINGS

IMPORTANT: Read this Owner’s Manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.

DANGER: Carbon monoxide poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re- semble the flu, with headaches, dizziness, and/or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include preg- nant women, persons with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.

Make certain you read and understand all Warnings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.

Use only kerosene or no. 1 fuel oil to avoid risk of fire or explosion. Never use gasoline, naphtha, paint thinner, alcohol, or other highly flammable fuels.

Fueling

a)Personnel involved with fueling shall be qualified and thoroughly familiar with the manufacturer’s instructions and applicable governing regulations

regarding the safe fueling of heating units.

b)Only the type of fuel specified on the heater’s data plate shall be used.

c)All flame shall be extinguished and the heater allowed to cool, prior to fueling.

d)During fueling, all fuel lines and fuel- line connections shall be inspected for leaks. Any leaks shall be repaired prior to returning the heater to service.

e)At no time shall more than one day’s supply of heater fuel be stored inside a building in the vicinity of the heater. Bulk fuel storage shall be outside the structure.

f)All fuel storage shall be located a minimum of 8 meters from heaters, torches, welding equipment, and similar sources of ignition (excep- tion: the fuel reservoir integral with

the heater unit).

g)Whenever possible, fuel storage shall be confined to areas where floor pen- etrations do not permit fuel to drip onto or be ignited by a fire at lower elevation.

h)Fuel storage shall be in accordance with the authority having jurisdiction.

Never use heater where gasoline, paint thinner, or other highly flammable va- pors are present.

Follow all local ordinances and codes when using heater.

Heaters used in the vicinity of tarpau- lins, canvas, or similar enclosure ma- terials shall be located a safe distance from such materials. The recommended minimum safe distance is 3 meters. It is further recommended that these en- closure materials be of a fire retardant nature. These enclosure materials shall be securely fastened to prevent them from igniting or from upsetting the heater due to wind action.

Use only in well-vented areas. Before using heater, provide at least a 2800 square-centimeter opening of fresh, outside air for each 25,000 Kcal/Hr of rating.

Use only in places free of flammable vapors or high dust content.

Use only the electrical voltage and fre- quency specified on model plate.

Use only a three-prong, grounded ex- tension cord.

Minimum heater clearances from com- bustibles:

Outlet: 2.5 meters

Sides: 1.25 meters

Top: 1.25 meters

Rear: 1.25 meters

Locate heater on a stable and level sur- face if heater is hot or running or a fire may occur.

When moving or storing heater, keep heater in a level position or fuel spill- age may occur.

Keep children and animals away from heater.

Unplug heater when not in use.

When used with thermostat, heater may start anytime.

Never use heater in living or sleeping areas.

Never block air inlet (rear) or air outlet (front) of heater.

Never move, handle, refuel, or service a hot, operating, or plugged-in heater.

Never attach duct work to front or rear of heater.

UNPACKING

1.Remove all packing items applied to heater for shipment.

2.Remove all items from carton.

3.Check items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

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Desa RJ45, RJ70 owner manual Safety Information, Unpacking

RJ70, RJ45 specifications

Desa RJ45 and RJ70 are two prominent connector types commonly used in networking and telecommunications. They serve as vital components in facilitating communication and data transfer over various networks, playing crucial roles in both home and commercial environments.

The RJ45 connector is perhaps the most recognized of the two, primarily used in Ethernet networks. Its standard design accommodates eight pins, enabling the connection of twisted-pair cables, most notably Category 5e, Category 6, and higher. This widespread acceptance can be attributed to its ability to support high-speed data transfer rates, with contemporary setups allowing speeds up to 10 Gbps over short distances. Key features of the RJ45 connector include its simple plug-and-play functionality, which streamlines installation and enhances user experience.

In comparison, the RJ70 connector is less common but is engineered for specific applications within telecommunications. This connector is designed with four pins, mainly used with telephone systems and low-speed data transmission. The RJ70 is particularly notable for its application in modular voice communication, where it is employed to connect telephones and to facilitate basic data connections.

Both RJ45 and RJ70 utilize differential signaling to enhance performance and reduce interference, which is vital in densely populated electronic environments. Furthermore, the connectors’ compact size aids in efficient space management, an important characteristic in data centers and telecom applications.

The physical structure of these connectors includes a locking mechanism to secure connections firmly, ensuring stability during operation. Additionally, RJ45 connectors typically come in shielded (STP) and unshielded (UTP) variations, offering options for users based on their environmental needs to mitigate electromagnetic interference.

In summary, Desa RJ45 and RJ70 connectors are integral to modern networking technologies. RJ45 connectors dominate Ethernet installations with their high-speed capabilities and versatility, while RJ70 connectors fulfill niche roles in voice communication systems. Understanding the features and technologies behind these connectors is essential for professionals in telecommunications and networking, ensuring optimal setup and performance in diverse applications. The ongoing evolution in networking demands keeps these connector types relevant, adapting to the increasing bandwidth requirements and technological advancements in data communication.