发明名称 |
EQUIPMENT FOR THE STEP-BY-STEP REMOTE LOCATING OF REPEATERS OF A PCM CONNECTION |
摘要 |
A step-by-step remote locating system for a digital bidirectional transmission link includes repeater pairs between a monitoring end equipment and a remote equipment. The monitoring equipment transmits remote location sequences and a locate end interruption on a forward channel. The sequences are intended to command closing and opening respective loop-back paths between two repeaters of the pairs. Each sequence comprises a predetermined integral number k of nonconsecutive interruptions in a transmitted digital signal throughout a predetermined period and, with the exception of the first sequence, an interruption preceding the k interruptions intended for opening the loop-back path of the preceding pair. The remote locate circuit associated with each repeater pair comprises an interruption counter. When the count of the counter is k the respective loop-back path to the monitoring equipment is closed. When the count is not equal to k, the loop-back path is opened. The count of the counter automatically returns to zero in response to a count less than k at the end of the predetermined period or in response to a locate end interruption longer than the predetermined period. |
申请公布号 |
DE3162787(D1) |
申请公布日期 |
1984.04.26 |
申请号 |
DE19813162787 |
申请日期 |
1981.06.18 |
申请人 |
SOCIETE ANONYME DE TELECOMMUNICATIONS |
发明人 |
BARGETON, GILBERT LOUIS;BEYNIE, CLAUDE PAUL MARCEL |
分类号 |
H04B17/40;(IPC1-7):04B17/02 |
主分类号 |
H04B17/40 |
代理机构 |
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代理人 |
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地址 |
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