{"id":3017,"date":"2024-10-11T21:14:38","date_gmt":"2024-10-11T19:14:38","guid":{"rendered":"https:\/\/cle-automazioni.com\/?post_type=product&p=3017"},"modified":"2026-09-24T17:34:30","modified_gmt":"2026-09-24T15:34:30","slug":"tqq-1m-versalink-optical-fiber-rs485-repeater","status":"publish","type":"product","link":"https:\/\/cle-automazioni.com\/en\/tqq-1m-versalink-optical-fiber-rs485-repeater\/","title":{"rendered":"VersaLink optical fiber RS485 repeater – TQQ\/1M"},"content":{"rendered":"

TQQ\/1M is a VersaLink optical fiber RS485 repeater, with a low voltage supply. It consists of a synthetic fiber-optic master section with a screw-type connector and an electrical section with an RS485<\/a> output. It can be used to extend the transmission distance of a serial communication or to isolate network branches. It can be mounted on a control panel with a 35 mm DIN rail and is very compact, as it occupies only 2 modules.<\/p>\n

The synthetic optical fiber RS485 repeater accepts a wide range of low-voltage AC and DC power supplies; it is fully Plug & Play and requires no drivers or DIP switches. This repeater operates in half-duplex mode and automatically detects data direction and transmission speeds up to 250 kbps, making it easy to install in any new or existing system.<\/p>\n

 <\/p>\n

Working principle<\/h4>\n

TQQ\/1M VersaLink optical fiber RS485 repeater consists of a master optical section, where the received signal is retransmitted by the slave optical section. The signal is simultaneously converted and transmitted by the RS485 electrical slave section. The response packets received from the slave optical terminals are retransmitted to the master terminals. However, these packets are not converted by the RS485 electrical slave section.<\/p>\n

In an installation, it is good practice to install a converter at the beginning of a multi-mode fiber run and an VersaLink optical fiber RS485 repeater such as the TQQ\/1M<\/a> on each floor. This helps reduce issues related to ground potential differences or possible power supply voltage spikes. Optical fiber is a perfect electrical insulator and therefore protects the RS485 bus from the propagation of lightning strikes or other atmospheric discharges.<\/p>\n

Optical fiber isolates various branches of a network (such as the floors of a hotel or sections of a photovoltaic system) from electromagnetic interference (EMI) and power surges. Electromagnetic interference is common in these environments; therefore, it is good practice to install two or more optical-to-electrical converters to ensure signal integrity.<\/p>\n

Furthermore, a VersaLink optical fiber RS485 repeater allows for the regeneration of the electrical signal, thereby improving communication quality.<\/p>\n

 <\/p>\n

What is an optical fiber repeater used for?<\/h4>\n

A VersaLink optical fiber RS485 repeater is typically used to integrate multi-mode optical fiber segments into an RS485 serial bus network. There are also environments where electrical equipment is prohibited, such as swimming pools, saunas, and buildings at risk of fire, where optical fiber therefore becomes necessary.<\/p>\n

The transmission speed is certainly more limited than glass fiber, but it is still more than sufficient for the few Mbps required in industrial applications. In building automation, controlling modules on an RS485 bus requires a few hundred kbps, and synthetic optical fiber is definitely recommended for isolating different zones of a system.<\/p>\n

 <\/p>\n

Protocol<\/h4>\n

TQQ\/1M VersaLink optical fiber RS485 repeater is completely independent of the protocol used. This means that the repeater is transparent to the communication and can be used with protocols such as Modbus, BACnet, or any proprietary protocol.<\/p>\n

This is possible because the repeater operates on electrical levels rather than at the protocol level itself. Therefore, this VersaLink optical fiber RS485 repeater can also be used in complex networks where multiple protocols are present simultaneously on the same RS485 bus.<\/p>\n

 <\/p>\n

Versatility<\/h4>\n

TQQ\/1M VersaLink optical fiber RS485 repeater is also available with other combinations of serial standards and optical fiber, or as a simple converter. The TVV\/1M<\/a> and TSS\/1M<\/a> repeaters, for example, accept glass optical fiber with a bayonet connector or synthetic optical fiber with screw connector, respectively. TQQ\/1F<\/a> and TQQ\/1R<\/a>, on the other hand, are suitable for various serial standards, namely RS422 and RS232.<\/p>\n

CMM\/1Q<\/a>\u00a0industrial serial converter can be used to terminate an optical bus. All combinations of serial standards, fiber optics, and power supply are available in the catalog; however, special requests (such as higher speeds) can be made via the contact form.<\/p>\n","protected":false},"excerpt":{"rendered":"

\n

TQQ\/1M is a VersaLink optical fiber RS485 repeater powered by low voltage. It consists of a master section made of synthetic optical fiber with a Versatile Link connector and an electrical section with an RS485 output.<\/p>\n

 <\/p>\n

This VersaLink optical fiber RS485 repeater consists of an optical master section, where the received signal is retransmitted by the optical slave section. The signal is simultaneously converted and transmitted by the RS485 electrical slave section. Response packets received from the optical slave terminals are retransmitted to the master terminals. However, these packets are not converted by the RS485 electrical slave section.<\/p>\n

 <\/p>\n

It isolates the various branches of a system from electromagnetic interference, power surges, or even lightning strikes.<\/p>\n

 <\/p>\n

It is completely protocol-transparent, so it can be used with Modbus or any proprietary protocol operating on an RS485 bus.<\/p>\n

 <\/p>\n

It accepts a wide range of low-voltage AC and DC power supplies, is fully Plug & Play, and requires no drivers or DIP switches. The RS485 serial interface operates in half-duplex mode and automatically detects data direction and baud rates up to 250 kbps, so it can be easily installed in any new or existing system.<\/p>\n

 <\/p>\n<\/div>\n","protected":false},"featured_media":2587,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[257,265,264,266],"product_tag":[274,280,279],"class_list":["post-3017","product","type-product","status-publish","has-post-thumbnail","product_cat-isolation","product_cat-optical-fiber","product_cat-repeaters","product_cat-rs485-en","product_tag-din-rail","product_tag-optical-fiber","product_tag-rs485","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product\/3017","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=3017"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/media\/2587"}],"wp:attachment":[{"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/media?parent=3017"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product_brand?post=3017"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product_cat?post=3017"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/cle-automazioni.com\/en\/wp-json\/wp\/v2\/product_tag?post=3017"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}