China Cheap price Sfp Sr Transceiver - Gigabit fiber optic transceiver (2 optical and 4 electricity) – Changfei Optoelectronics

product description:

This product is a gigabit fiber optic transceiver with 2 gigabit optical ports and 4 1000Base-T(X) adaptive Ethernet RJ45 ports. It can help users realize the functions of Ethernet data exchange, aggregation and long-distance optical transmission. The device adopts fanless and low power consumption design, which has the advantages of convenient use, small size and simple maintenance. The product design conforms to the Ethernet standard, and the performance is stable and reliable. The equipment can be widely used in various broadband data transmission fields such as intelligent transportation, telecommunications, security, financial securities, customs, shipping, electric power, water conservancy and oil fields.

1. How to distinguish between single-fiber transceivers and dual-fiber transceivers

There are currently two ways to distinguish single-fiber transceivers from dual-fiber transceivers.
①When the optical fiber transceiver is embedded with an optical module, the optical fiber transceiver is divided into a single fiber transceiver and a dual fiber transceiver according to the number of fiber cores of the connected fiber jumper. The linearity of the fiber jumper connected to the single-fiber transceiver (right picture) is a fiber core, which is responsible for both transmitting and receiving data; while the fiber jumper connected to the dual-fiber transceiver (left picture) has a fiber core. Linear is two cores, one of which is responsible for transmitting data and the other for receiving data.
② When the optical fiber transceiver does not have an embedded optical module, it is necessary to distinguish whether it is a single-fiber transceiver or a dual-fiber transceiver according to the inserted optical module. When a single-fiber bidirectional optical module is inserted into the optical fiber transceiver, that is, the interface is a simplex type, the optical fiber transceiver is a single-fiber transceiver; when a dual-fiber bidirectional optical module is inserted into the optical fiber transceiver, that is, the interface is dual In the case of industrial type, this transceiver is a dual fiber transceiver

2. Solutions for single-fiber transceivers and dual-fiber transceivers

1. Ethernet to Fiber Link—Single Fiber Transceiver
Single-fiber transceivers can be connected to switches through a fiber link: a simplex fiber patch cord connects the BIDI installed on the two transceivers
SFP single-fiber bidirectional optical modules, and then use unshielded twisted pair (UTP) to connect single-fiber transceivers and switches.
2. Ethernet to Fiber Link—Dual Fiber Transceivers
Dual-fiber transceivers can connect UTP copper-based Ethernet devices through fiber-optic links: two duplex fiber optic patch cords connect dual-fiber bidirectional optical modules installed in both transceivers, then use unshielded twisted pair (UTP) Connect the dual-fiber transceiver and PoE switch, and finally connect the fiber optic cable in the middle to take full advantage of the fiber optic cable, achieve longer link extension, and protect data from noise interference.
3. How to choose single fiber transceiver and dual fiber transceiver
In the past, when the fiber optic transceiver was an embedded optical module, the choice of single fiber or dual fiber of the fiber optic transceiver needed to be carefully considered. Now the fiber optic transceiver can match the pluggable optical module, so there is no need to worry about whether to choose a single fiber transceiver or a dual fiber transceiver. fiber transceiver, only need to replace the optical module.