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As for the MTP/MPO loopback, it is mainly used for testing parallel optics, such as 40G and 100G transceivers. The LC and SC loopbacks are made with simplex fiber cable and common connectors it’s not difficult to understand their configurations. In testing fiber optic transceiver modules, the most commonly used are LC, SC and MTP/MPO loopback cables. According to the optical connector type of the loopback, fiber loopback cables can be divided to LC, SC, FC, ST, MTP/MPO, E2000, etc. Based on the fiber type used, there is single-mode loopback and multimode loopback, available for different polishing types. This designing is more compact in size and stronger in use. Some vendors provide improved structure with a black enclosure to protect the optical cable.
![lc loopback cable lc loopback cable](https://www.fiberpatch-cords.com/test/fiberpatch-cords.com/photo/pl32021387-remark.jpg)
Generally, a fiber loopback is a simplex fiber optic cable terminated with two connectors on each end, forming a loop. For safety reason, no high-voltage equipment is allowed in plenum space because presence of fresh air can greatly increase danger of rapid flame spreading if the equipment catch on fire.īefore deciding which loopback cable to use, we should firstly know the structure and classification of fiber loopback cable. Thus better CMP cable with a non-halogen plenum compound is further produced. It has to be noted that some CMP cable made of fluorinated ethylene polymer (FEP) still has shortcomings of potential toxicity. As an excellent performer cable, it is usually more costly than other cable types. Additionally, CMP MTP/MPO cable is more fire-retardant than LSZH, and as a result, sites are better protected. It is designed to restrict flame propagation no more than five feet, and to limit the amount of smoke emitted during fire. CMP rated communication cable is suitable for telephone and computer network exactly for this matter. Typical plenum spaces are between the structural ceiling and the drop ceiling or under a raised floor.
![lc loopback cable lc loopback cable](https://www.molex.com/mx_upload/family/lc_connectors_and_adapters/LCProductFamily_hpi.jpg)
CMP MTP/MPO cable is designed to be used in plenum spaces, where air circulation for heating and air conditioning systems can be facilitated, by providing pathways for either heated/conditioned or return airflows.
![lc loopback cable lc loopback cable](https://www.cablesnmore.com/content/images/thumbs/000/0008571_lc-fiber-optic-loopback-adapter-9125.jpeg)
The main compatible optical modules and cables are listed in the below: In addition, you can use TP-LINK TXC432-CU1M or TP-LINK TXC432-CU3M to achieve the link. The TP-Link T1700G-28TQ support 10BASE-T with UTP category 3, 4, 5 cable (maximum 100m), 10GBASE-LR and 10GBASE-SR to connect. You can choose 10G optical transceivers or 10G DAC cables to transfer data. Besides, you can also use 1000BASE-X with singlemode or multimode fiber cable to connect.įigure2: Optional choices for 10G networkĪs for the 10G SFP+ ports, there are two approaches to achieve transfer the data. For the 10/100/1000Mbps RJ-45 ports, you can use 100BASE-TX or 1000Base-T optical transceiver with UTP category 5, 5e or above cable (maximum 100m) to achieve the link. And it is a switch supports different optical modules and network cables. Compatible Optics for TP-Link T1700G-28TQĪs being mentioned, the TP-Link T1700G-28TQ has 24 10/100/1000Mbps RJ-45 ports and 4 dedicated 10G SFP+ slots to achieve network connectivity.