| 单词 | ISO/IEC 11801 |
| 释义 | ISO/IEC 11801 An international standard from the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), specifying general-purpose telecommunications structured cabling systems. The standards include both copper wire and optical fiber inside cabling systems.The standard specifies classes of twisted pair copper performance, as follows: Class A: 100 kHz Class B: 1 MHz Class C: 16 MHz 74570c09.qxd 9/11/07 12:22 PM Page 263 |
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