We have purchased recently "1000BASE-ZXC SFP 1550nm 160km" SFP ,(SFP1G-ZXC-55), We want to test this SFP in our lab with CISCO and Fortinet devices, For those two devices, a 10m SM cable is connected. mainly we need to know, what is the attenuator size to be selected for our lab test.
От Анонимный пользователь 20/07/2023
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The general rule for signal loss is around 0.4db per kilometer. To test your setup in a lab, you need to get your real distance (let's say 100km) and multiply by 0.4 which now equals 40db. For this you may need to order 2 attenuators for each strand. One 15db and the other 25db. You insert one into the other for a total of 40db attenuation. От R***S 24/08/2023