FIELD: computer technology. SUBSTANCE: unit has three counters, six triggers, memory unit, comparison circuit, ten AND gates, NOT gate, OR gate, decoupling element and delay element. When the trunk becomes free and requirement for configuration representation is absent, device changes to arbitrary mode. If requirement is present, the device changes to arbitrary mode and represents network configuration, where 1 is generated which goes to general information line if K-th user is connected at K-th condition of interval number counter. If user is not connected, zero is generated which goes to line. Condition of the line is memorized in memory unit for K-th address. EFFECT: improved efficiency. 1 dwg
