| 摘要 |
FIELD: information technology.SUBSTANCE: apparatus has a first unit for relaying signals in a channel, having an optical signal coupler and a switch for selecting channel lines, which consists of four interconnected optical switches, and a second unit for detecting, allowing or prohibiting passage of external signals to the first unit, having a first unit for detecting presence of signals in two lines at the same time in the channel, presence of a signal in one line only, absence of signals in both lines during a given time interval, a second unit consisting of four delay elements for external signals, and a third unit consisting of four switches.EFFECT: broader functional capabilities owing to faster detection, elimination and location of faults when transmitting optical signals.7 dwg |
