Convertible to Pigtail patch cord LC/PC, Multi-mode (MM) OM3, LSFH indoor
Multi-mode (MM) fibre optic patch cord, used for interconnecting optical equipment, has both ends pre-terminated with LC/PC connectors.
The 900μm cover is of LSFH type and is recommended for indoor use.
Additionally, its connectors have a short boot, facilitating installation in wall sockets, avoiding attenuation due to undisired bends, aiding the sliding of the patch cords through conduits, reducing the space required for connection, and being less demanding regarding bend radius.
It can be cut to convert it into a pigtail, a cable with a single pre-terminated end that allows fusion to the other end.
- Multimode OM3 ITU-T G.651.1 fiber type
- LSFH sheath, aqua blue
- LC/PC connectors
- 2m long
Multimode fiber types
Multimode (MM) optical fiber is that which can transmit more than one light mode simultaneously, allowing multiple signals to be propagated at the same time. Its main advantage over single-mode (SM) fiber is the lower cost of both the fiber and the optical devices, making it an ideal solution for short distances, such as enterprise networks, communications rooms or data centers.
Multimode fiber cables are classified into 5 categories, called OM (Optical Multimode), from OM1 to OM5, and are mainly differentiated by their transmission speed in relation to distance.
The following table shows the distance that each category reaches according to the transmission speed:
| Category | Fast Ethernet | Gigabit Eth. | 10Gigabit Eth. | 40Gigabit Eth. | 100Gigabit Eth. |
| OM1 | 2000m | 275m | 33m | - | - |
| OM2 | 2000m | 550m | 82m | - | - |
| OM3 | 2000m | - | 300m | 100m | 70m |
| OM4 | 2000m | - | 550m | 150m | 150m |
| OM5 | - | - | 550m | 150m | 150m |
Additionally, multimode fibers differ in several factors:
- OM1 fibers have a core diameter of 62.5μm, while OM2, OM3, OM4 and OM5 fibers have a smaller core of 50μm
- OM1 and OM2 were the first to be developed. They are designed for use with LED light sources and are now tending towards disuse, as they are not suitable for high-speed networks. The next categories, OM3, OM4 and OM5, have been designed for use with laser emitters (VCSEL) achieving higher levels of bandwidth and speed
- OM3 and OM4 fibers work with 850 nm wavelengths, however, OM5 fiber has been optimized for WDM (Wave Division Multiplexing) applications. It is capable of transmitting up to 4 channels at higher wavelengths (880, 910 and 940 nm), obtaining a very high bandwidth
The following table summarizes the main characteristics of each type of multimode fiber:
| Category | Core/cladding diameter | Usual external color | Optical source | Bandwidth |
| OM1 | 65,2/125µm | Orange | LED | 200 MHz·km |
| OM2 | 50/125µm | Orange | LED | 500 MHz·km |
| OM3 | 50/125µm | Aqua blue | Laser (VCSEL) | 2000 MHz·km |
| OM4 | 50/125µm | Magenta | Laser (VCSEL) | 4700 MHz·km |
| OM5 | 50/125µm | Lime green | Laser (VCSEL) | 28000 MHz·km |
What is the difference between OM3 and OM4?
Among the different categories of multimode (MM) fiber, OM3 and OM4 fibers stand out as the most widely used today, since they achieve high transmission speed and bandwidth at an affordable price. OM4 fiber is an evolution of OM3, thanks to its improved internal construction, it has lower attenuation and thus manages to operate with a higher bandwidth than OM3, reaching greater distances.
| Fiber core type | Multi-mode (ITU-T-G.651.1) | |
|---|---|---|
| Optical fiber type category | OM3 | |
| Fiber core diameter | μm | 50 |
| Fiber cladding diameter | μm | 125 |
| Cable structure | Loose tube | |
| Outer sheath Diameter | mm | 0.9 |
| Outer sheath Material | LSFH | |
| Blocking jelly | No | |
| Attenuation 1310nm | dB/km | < 1 |
| Insertion losses in connector 1 | dB | < 0.5 |
| Insertion losses in connector 2 | dB | < 0.5 |
| Return losses in connector 1 | dB | > 30 |
| Return losses in connector 2 | dB | > 30 |
| Optical connector type 1 | LC | |
| Polishing type (Optical connector 1) | PC | |
| Optical connector type 2 | LC | |
| Polishing type (Optical connector 2) | PC | |
| Minimum bending radius | mm | 4.5 |
| Operating temperature | °C | -20 ... 70 |
Physical data
Net weight: 4 g
Gross weight: 4 g
Width: 1 mm
Height: 2,000 mm
Depth: 1 mm
Main product weight: 4 g
Packing
Bag 1 pcs.
| tlv_tags | Multimode fiber typesMultimode (MM) optical fiber is that which can transmit more than one light mode simultaneously, allowing multiple signals to be propagated at the same time. Its main advantage over single-mode (SM) fiber is the lower cost of both the fiber and the optical devices, making it an ideal solution for short distances, such as enterprise networks, communications rooms or data centers. Multimode fiber cables are classified into 5 categories, called OM (Optical Multimode), from OM1 to OM5, and are mainly differentiated by their transmission speed in relation to distance.
Additionally, multimode fibers differ in several factors:
The following table summarizes the main characteristics of each type of multimode fiber:
What is the difference between OM3 and OM4?Among the different categories of multimode (MM) fiber, OM3 and OM4 fibers stand out as the most widely used today, since they achieve high transmission speed and bandwidth at an affordable price. OM4 fiber is an evolution of OM3, thanks to its improved internal construction, it has lower attenuation and thus manages to operate with a higher bandwidth than OM3, reaching greater distances. |
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