发明名称 |
1:N RING-TYPE SIGNAL PROTECTION APPARATUS |
摘要 |
A system is illustrated that uses a spare or auxiliary add-drop muldem located at each end of N high capacity transport circuits to form a ring-type protection circuit using one additional high capacity transport. This is accomplished by using error detection circuitry to switch all of the auxiliary muldems to be normally in a high speed input/output circuit LOOPed condition but switching the auxiliary muldems on either end of a "bad" circuit to a THRU or open condition upon detection of a problem and allowing signals to be routed through the protection transport mechanism rather than the normal transport mechanism. 37
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申请公布号 |
CA2076844(C) |
申请公布日期 |
1999.03.16 |
申请号 |
CA19922076844 |
申请日期 |
1992.08.25 |
申请人 |
ALCATEL NETWORK SYSTEMS, INC. |
发明人 |
STALICK, VICTOR J. |
分类号 |
H04J3/14;H04L12/437;H04Q11/04;(IPC1-7):H04B3/46;H04B3/06;H04J3/16;H04L12/42 |
主分类号 |
H04J3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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