| 单词 | MDF (Main Distribution Frame) |
| 释义 | MDF (Main Distribution Frame) A distribution frame on one side of which main cable connect and on the other side of which lesser cable connect. An MDF may connect external lines and trunks from the public network on one side and internal cables on the other. In an end user environment, an MDF may connect lines and trunks from the public network on one side, or perhaps cables from a PBX, and on the other side connect internal cables connecting to intermediate distribution frames, terminal blocks, or directly to terminals within the customer premises. Short jumpers connect one side to the other. In a telecommunications environment, network trunks terminate on one side and local loop lines on the other. The MDF incorporates protectors for protection against power spikes and surges, and serves as a test point. See also distribution frame, frame, and IDF. |
| 随便看 |
|
科学参考收录了5291条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。