The telescope is a set of clusters with each cluster being considered as a complete detector of high energy neutrinos. Such a structure allows to add new clusters without rebuilding the whole telescope. A cluster consists of eight strings which hold optical modules (OM) detecting the Cherenkov radiation. These modules are grouped in sections, each section contains 12 OM and a master module of the section (SMM). Waveform signals from all the OMs of a section are sent to the correspondent master module via coaxial cables. Having been digitalized and timestamped the data are transferred to the cluster center which is connected to the shore station via optical cable. These chains are also utilized for remote managing the telescope and any of its modules from the shore station or from anywhere through the Internet.

The work of all the clusters is synchronized in time so as to events looked for (particles showers or muon overflights) could be extracted from the data obtained with the help of different clusters.

In a cluster peripheral strings are 60 meters away from the central one. The distance between optical modules is 15 m. As being the result of optimization of the telescope configuration, the arrangement allows to detect both showers and muon overflights most effectively. The chains of the optical modules are sunk into lake Baikal with the upper modules at the depth of 700 m and the bottom ones at the depth of 1240 m.

The strings are held down by heavy anchors and pulled upward by a bunch of buoys. Thus a cluster is not a rigidly fixed system, the strings can move to a certain extend. For every optical module to be precisely located in every moment of time each string contain acoustic transmitters and sensors which form the acoustic positioning system.