A pair of video optical transceivers corresponds to an optical fiber link. If there are more points, the networking method will determine the amount of fiber used, the space in the computer room, and the scope of failure. This article sorts out two mainstream structures and one connection method that needs to be treated with caution.

Point-to-point is the most basic structure

One transmitter and one receiver occupy one fiber. The link is simple and the positioning is fast. Abnormal images at a single point will not affect other points. Small projects or scenarios where points are independent of each other should be planned point-to-point first, numbered point by point, and the number of optical fibers should be calculated by pair with appropriate extra margin. There is no need to rewire cables for later expansion.

Converged networking saves fiber cores and management ports

When multiple cameras in an area need to be brought together to the same monitoring center, a multi-channel model can be used to push the eight-channel images and reverse data into one link. The front-end converges by slice, and the receiving end is centrally arranged in the computer room, unified with labels, and hierarchically managed. Refer toSecurity video surveillance fiber optic transmission solutionLink planning ideas. High-definition image source mixed points are available2-way HDMI+network+2-way independent two-way audio optical transceiverResponsible for aggregation nodes, video, network, and voice processing on the same fiber, reducing the number of equipment.

Chain connections need to be carefully evaluated

Some people want to string multiple points on the same fiber and relay them step by step to save fiber, but the risk is high: any intermediate level loses power or is abnormal, and all downstream pictures are interrupted. The troubleshooting needs to be carried out station by station. A city public security bureauPhase III of "Safe City" video surveillance optical fiber transmission of a city's Public Security BureauProject implementation experience also proves that point-to-point plus computer room aggregation is more stable than chain connection. When common fiber is really needed, it is recommended to add fiber pairs or change the convergence position instead of multi-level series connection.

Selecting the device model after the networking method is determined can avoid most of the rework. EB-LINK can assist in planning the link structure according to the point table. Telephone consultation on weekdays is 0755-83179002.