| 摘要 |
A system for monitoring the status of a plurality of repeaters located along a transmission line connecting two terminal stations, wherein data is transmitted between the two terminal stations through the plurality of repeaters, in the form of a multiframe consisting of a group of consecutive frames, each of the consecutive frames in the multiframe transmitting an address of the corresponding repeater, respectively, and the status of each of the repeaters being written in the corresponding frame when each of the repeaters has received the corresponding one of the consecutive frames.
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