In order to maximize the utilization of optical fiber resources, meet the high-performance (high-speed rate, large capacity) of data transmission and the increase of broadband demand, a single-mode optical fiber jumper can be used to cascade the expansion port of one CWDM passive WDM to another CWDM passive WDM in the new campus optical fiber cabling, so that the existing optical fiber can be installed or rented without additional optical fiber Double the fiber capacity. How to connect the optical fiber jumper to the WDM? The specific connection method is as follows:
1. Fuse the optical cable and the pigtail, then put it into the optical fiber fusion plate of the optical fiber distribution frame, and then use the adapter to connect the CWDM passive WDM with the single-mode optical fiber jumper;
2. First place two CWDM passive WDM in 1U rack type fiber distribution box (convenient for management), and then use single-mode fiber jumper to connect the two CWDM passive WDM;
3. Connect the CWDM passive WDM with the switch by using single-mode fiber jumper and single-mode optical module.
How to detect the optical fiber jumper?
Before connecting the optical fiber jumper to the equipment, it is necessary to check whether the optical fiber jumper is qualified. Otherwise, when all the optical fiber jumpers have been wired, it is found that the fault of the optical fiber jumper leads to the failure of the optical fiber link, which will cause great trouble. So how to detect the optical fiber jumper?
1. Use a red light pen to check whether the optical fiber jumper is connected, and make sure that the optical fiber jumper has no breakpoint or fault;
2. Use the optical return loss tester to measure the insertion loss and return loss of the optical fiber jumper. Generally, the insertion loss value is less than 0.3dB, and the return loss value is greater than 45dB. The measurement results can be used if they meet the requirements;
3. Use optical power meter or OTDR optical time domain reflectometer to measure fiber connector loss and fiber attenuation (or even detect fiber failure point), as long as it meets the standard, it can be used.
