You may find different types of fiber optic transceivers on the market, but how to classify these transceivers into specific categories? In this article, several factors which can influence the classification of optic transceivers will be introduced for an overall understanding of transceiver modules. The factors may include the applications of transceivers for which they are intended. Now, let’s have a look at the explanation of these criteria used to classify fiber optic transceivers.
Data Transfer Distance
Fiber optic transceivers are not possibly transferring the same distance. For instance, a multimode transceiver transmission will typically include a distance of 2 km to 5 km. A single-mode transceiver can transmit a distance from 20 km to 120 km. This is important in selecting a transceiver for an application. If the transmission distance is not adequate, the application will not function properly. Data transmission distance may be affected by whether the transceivers are single fiber or dual fiber.
Work Level/Rate Points
Work-level and rate points also have different categories, which range from 10 M to 1000 M. These points are categorized into two different types: rack-mounted fiber optic transceivers or desktop fiber optic transceivers. Desktop fiber optic transceivers are typically chosen for a low-traffic environment or one user. For instance, if we need to “meet the corridor in a single switch on the joint”, fiber optic transceivers may be used. By contrast, rack-mounted fiber optic transceivers are designed for multi-user aggregation.
When points are discussed according to work, the full duplex mode occurs when the data transmission is transmitted by two different transmission lines. There is communication at both ends of the device and are used for both sending and receiving operations. Generally, in this type of transceiver configuration, there is no time delay generated by the operation.
The half-duplex mode is used with a single transmission line that is used for both reception and transmission. The communication cannot occur simultaneously in the same direction. And this is the reason why it is called the half-duplex system.
Managed Vs. Unmanaged Transceivers
Unmanaged Ethernet optical transceivers are typically plug and play. They may have electrical interfaces with hardware Dual In-line Package (DIP) switch settings mode. With managed Ethernet fiber optic transceivers, they support a carrier-grade network management.
Built-In Power Supply Vs. External Power Supply
A built-in power supply fiber optic transceiver can support equipment power protection, filters, and a wide power supply voltage regulator. This type of configuration reduces the external point of failure. An external power supply is preferred because the device is affordable and compact.
These ways for classification will come into play when your design requires fiber optic transceivers. You are capable to choose the right type of transceiver for application, and your clients may also be satisfied with dependability of the transceiver you pick for them. On the contrary, once you fail to select the suitable transceiver for not referring to the classification, the equipment will break down prematurely and become less reliable. In order to prevent the undesirable consequences, it is important to know the classification of optic transceiver modules.
The article originates from http://www.sfp-transceiver-modules.com/wiki/a/105/Ways-to-Classify-Fiber-Optic-Transceivers.