The telecommunication network system is one of the important social infrastructures. However, the behavior under the earthquake is not clear. Then, the building where the telecommunication equipment was integrated was constructed. And the seismic test was run. As a result of the experiment, we got two important things below: 1. Minimum fixation is necessary if the equipments in the building of the quake absorbing structure. 2. More strong fixation is necessary if the equipments in the building of the quakeproof structure.
