What does OFNP mean in fiber?

What does OFNP mean in fiber?

Fiber Optic Non-Conductivity Plenum

OFNP stands for Fiber Optic Non-Conductivity Plenum. OFNP fiber cables are fire and smoke resistant. They can be installed in pipes, plenums and other spaces for building gas streams. This is the highest level of fire rated cable, no other cable can be used as a substitute.

Is OFNP plenum rated?

The OFNP (plenum) rating conforms to strict NEC building safety codes but is compatible with unrated or OFNR (riser) rated applications.

How do you identify a fiber optic cable?

A: Optical fiber cables can be identified by the color-coding of the Bale clasp. The various types of single-mode fiber cables can be seen in the following colors – gray, violet, blue, green, yellow, orange, red, and brown. On the other hand, multimode optical fiber cables have the Bale Clasp in black color.

What is 50 125 fiber optic cable?

50/125 is one of the most commonly used multimode optical fiber; the other commonly used is 62.5/125 types. Here the 50 and 125 is measurement by the unit micron. One meter is equal to one million micron.

What is plenum vs riser cable?

Usually, riser cables are installed in between the walls of buildings. They can also be installed in areas that do not pose danger in case of a fire. Plenum rated cable is a cable that is suited to go in the plenum spaces of buildings.

What is a plenum rated cable?

Plenum rated cable has a special insulation that has low smoke and low flame characteristics. Plenum cable is mandated to be installed in any “air handling” space. For example, most large office buildings use the ceiling to return air to the AC unit.

What are the 2 types of fiber optic cables?

There are two types of fibre optic cables – multimode and single-mode. Multimode optical fibre or OFC is capable of carrying multiple light rays (modes) at the same time as it has varying optical properties at the core. Single-mode fibre has a much smaller core size (9 microns).

What are the 3 common variations of fiber cable?

There are three types of fiber optic cable commonly used: single mode, multimode and plastic optical fiber (POF).

What is the difference between 50 125 and 62.5 125 fiber?

So a higher fiber bandwidth enables you to transmit at a faster rate or for longer distances. In short, 50-micron cable provides longer link lengths and/or higher speeds in the 850-nm wavelength.
…
Gaining ground.

Can you mix fiber cable types?

Although 50μm and 62.5μm fibers are fully compatible with laser sources with thousands of tests, industry standards, leading media as well as equipment manufacturers recommend that you should not mix different types of fiber in a single link.

What is the difference between FT4 and FT6?

FT4 Cables can be used in Non-Combustible buildings. Products passing the FT6 Horizontal Flame and Smoke Test are designated FT6 in the column where the trade number appears. This test is for cables which must pass a Horizontal Flame and Smoke Test in accordance with ANSI/NFPA Standard 262-1985 (UL-910).

When should you use riser cable?

The type of installation determines which cable, riser or plenum, is used. If the installation only goes between floors in non-plenum areas, riser cable is sufficient. If budget is an issue, riser cable is usually cheaper than plenum rated cable. However, for use in plenum areas, always best use plenum rated cable.

Why would you use plenum cable?

A plenum air return would unknowingly circulate toxic air throughout an office. Since both you and the Fire Department don’t want you to die from breathing in toxic fumes from your cabling, code requires Plenum Rated cable installed through any plenum air return space.

What are the 3 types of fiber optic cable?

There are three types of fiber optic cable: single mode, multimode and plastic optical fiber (POF).

How do you identify fiber optic cable?

Key Steps for Cable Identification

1. Check the jacket color. In non-military applications: OM1/OM2 = orange. OM3 = aqua.
2. Read the print legend. Look for OM1 (62.5/125), OM2 (50/125), OM3 (50/125), OM4 (50/125) or OS2 (9/125) Look for a rating, such as OFNP or OFNR.

How do I know what type of fiber cable I have?

Can you mix 62.5 and 50 micron fiber?

Although it is technically feasible to combine 50 micron and 62.5 micron core multimode fibers in the same system, there is a one-time attenuation loss when coupling 62.5 micron fiber into 50 micron fiber.

How far can you run 62.5 fiber?

Gaining ground

Can you connect 62.5 and 50 micron fiber?

If you decide to add 50-µm fiber to an existing 62.5-µm infrastructure, connecting 50-µm directly to 62.5-µm is generally not recommended. The difference in core sizes could cause high loss when transmitting from the 62.5-µm into the 50-µm fiber.

Can you join single mode and multimode fiber?

Yes, it is possible to connect two devices with a single fiber at one end and multimode at the other. Single mode cables are typically useful for long geographical distances.

What is FT6 cable used for?

Overview. This FT6 plenum rated Cat6 ethernet cable consists of a RJ45 male on one end and a RJ45 male on the other. It is typically used for ethernet network connections such as patch panels, switches and computers to routers.

What is FT4 fire rating?

The FT4 certification is one of the most popular as it has one of the toughest tests to pass, given the 70,000 BTU/hour flame. This certifications testing procedure has cables mounted on a vertical tray, which are exposed for 20 minutes to a 70,000 BTU/hour flame. This test is identical to the IEEE 1202 flame test.

Why is it called riser cable?

Getting To Know Riser Cables
Riser cable is cable that is ran between the floors in non plenum areas. They get their name because of the way riser cable is ran which is rising up to each floor. Riser cable is important in that it can be a buildings backbone that transmits data, audio and video signals.

Which wire type can you run in a plenum?

Plenum cables are the highest standard and can safely be substituted for any other cable type such as riser, CM, CL2 or CL3 cables.

What is the difference between plenum and non plenum cable?

Thus, fire and building safety codes mandate plenum-rated cables be used in plenum spaces and air ducts. They can also be used in non-plenum areas. Non-Plenum cables, on the other hand, are much cheaper and not as fire-resistant. When burned, they release toxic fumes such as hydrochloric acid and dioxin.