发明名称 |
SUBSCRIBER TEST SYSTEM FOR DATA SWITCHBOARD |
摘要 |
PURPOSE:To ensure an easy test through utilization of the subscriber test switchboard, by securing a double connection for the signal transmitter/receiver used for the exchange connection control to the subscriber bus within the switchboard and storing the full subscriber line change into the memory. |
申请公布号 |
JPS5390804(A) |
申请公布日期 |
1978.08.10 |
申请号 |
JP19770006125 |
申请日期 |
1977.01.21 |
申请人 |
NIPPON ELECTRIC CO;NIPPON TELEGRAPH & TELEPHONE |
发明人 |
SENGOKU MASAMI;HARUTA KATSUHIKO |
分类号 |
H04M3/26;H04L12/26 |
主分类号 |
H04M3/26 |
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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