{"id":2869,"date":"2024-10-11T21:19:41","date_gmt":"2024-10-11T19:19:41","guid":{"rendered":"https:\/\/cle-automazioni.com\/?post_type=product&p=2869"},"modified":"2026-07-27T17:09:06","modified_gmt":"2026-07-27T15:09:06","slug":"pof-2hd-dual-channel-armored-optical-fiber","status":"publish","type":"product","link":"https:\/\/cle-automazioni.com\/en\/pof-2hd-dual-channel-armored-optical-fiber\/","title":{"rendered":"Dual channel armored optical fiber – POF\/2HD"},"content":{"rendered":"

POF\/2HD is a dual channel multi-mode armored optical fiber<\/a> with rodent-resistant protection, featuring core and cladding diameters of 1.0 mm and 2.2 mm, respectively. It is mainly used in industrial environments due to its immunity to electromagnetic interference (EMI) and its electrical insulation properties. It can easily achieve the transmission speeds required by common industrial serial communication standards, up to 250 kbps. RS485, RS232, and RS422 typically do not require high communication speeds in industrial applications, as they prioritize stability and robustness.<\/p>\n

In networks subject to heavy electromagnetic interference, which is common in industrial environments, it is good practice to install two or more optical-to-electrical converters connected by an optical fiber link to ensure signal integrity. There are also environments in which electrical equipment is prohibited, such as swimming pools, saunas, and buildings at risk of fire, where the use of optical fiber becomes essential.<\/p>\n

The protective outer jacket makes the optical fiber suitable for underground installation and may be necessary for outdoor installations or more complex operating conditions. In critical applications where communication cannot be interrupted, it is advisable to use synthetic optical fiber protected against accidental damage. The thick outer jacket provides additional protection, including in the event that falling objects could damage the optical fiber. When this level of protection is not required, the dual channel POF\/2<\/a> synthetic optical fiber is available without rodent-resistant protection.<\/p>\n

 <\/p>\n

Single-mode or multi-mode?<\/h4>\n

Single-mode optical fibers are used for high-speed transmission applications, reaching speeds of several Gbps, but they have several disadvantages compared with multi-mode fibers. For example, they allow only small bending radii, require extremely precise termination, and are very expensive. Multi-mode fiber, on the other hand, supports lower speeds but is more affordable and flexible from an installation perspective. For example, standard workshop tools are sufficient for termination, while the converters use convenient screw connectors suitable for manual installation. A few simple precautions can also be taken to reduce signal loss and improve communication quality.<\/p>\n

Single-mode optical fiber can only be made of glass, which certainly offers several advantages, primarily the maximum achievable speed and the longer transmission distance. However, the speeds required in industrial environments, which are often only a few tens of kbps, can easily be achieved using plastic fiber. For this reason, multi-mode synthetic optical fiber made of plastic is often the more convenient choice for industrial applications and building automation.<\/p>\n

A single synthetic optical fiber link can cover approximately 100 meters, which is sufficient for most indoor and outdoor applications. For longer distances, such as a backbone connection between two separate buildings, glass optical fiber is recommended. It can cover distances of several kilometers, although it must be professionally terminated.<\/p>\n

 <\/p>\n

When is the armor needed?<\/h4>\n

In more demanding environments, several problems can be prevented by using synthetic armored optical fiber. The durable outer jacket protects the fiber against accidental damage that could cause communication interruptions. Standard optical fiber usually has only a simple outer covering, and damage to this covering can result in communication errors. For example, sunlight can enter the optical fiber through a cut or chipped section of the covering and interfere with communication.<\/p>\n

 <\/p>\n

Use cases<\/h4>\n

POF\/2HD armored synthetic optical fiber is multi-mode and can be used in combination with optical-to-electrical converters and repeaters such as CMM\/1S<\/a> and TSS\/1M, which are suitable for RS485 communication. These are industrial converters designed for DIN rail mounting, as are the CRM\/1S and TSS\/1F, which use RS232 and RS422 communication standards.<\/p>\n

For connection to a PC via USB or a DB9 connector, the BTS\/1 and DFP\/9S are recommended, respectively. The complete range of serial communication standards, optical fiber types, and power supply configurations is available in the product catalogue. Special requirements, such as higher transmission speeds, can be submitted through the contact form.<\/p>\n","protected":false},"excerpt":{"rendered":"

POF\/2HD is a dual channel multi-mode armored optical fiber with core and cladding diameters of 1.0 mm and 2.2 mm, protected by a thick outer jacket that makes it suitable for underground installation and resistant to rodents. It is the reinforced version of POF\/2, with the same optical characteristics, and is chosen when the route runs outdoors or where the fiber may be subject to crushing and impact.<\/p>\n

 <\/p>\n

FAQ<\/h4>\n

What is the difference between POF\/2 and POF\/2HD?<\/strong><\/p>\n

The optical characteristics are identical. The difference lies in the outer jacket, which is thicker, providing protection against rodents, crushing, and accidental impacts, and allowing for underground installation.<\/p>\n

 <\/p>\n

What speeds does it support?<\/strong><\/p>\n

Up to 250 kbps, which covers RS485, RS232, and RS422 in industrial applications, where connection stability is more important than bandwidth.<\/p>\n

 <\/p>\n

How many channels does it have?<\/strong><\/p>\n

Two, one per direction, which is what\u2019s needed for a full-duplex serial link or a pair of optical-electrical converters.<\/p>\n","protected":false},"featured_media":2557,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[257,267,265],"product_tag":[280,281],"class_list":["post-2869","product","type-product","status-publish","has-post-thumbnail","product_cat-isolation","product_cat-accessories","product_cat-optical-fiber","product_tag-optical-fiber","product_tag-synthetic-fiber","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product\/2869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/comments?post=2869"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/media\/2557"}],"wp:attachment":[{"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/media?parent=2869"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product_brand?post=2869"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product_cat?post=2869"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product_tag?post=2869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}