正在加载图片...
Figure 6.2: Internal PBx-Based Telephone network 2. Final distribution Along or Through Wal ■■■■ ■■■■■■ ■■■■■■ 3. Patch Cord 1. Horizontal distribution One 4-Pair UTP Cord 6-76-7 Figure 6.2: Internal PBX-Based Telephone Network 1. Horizontal Distribution One 4-Pair UTP Cord 2. Final Distribution Along or Through Wall 3. Patch Cord
<<向上翻页向下翻页>>
©2008-现在 cucdc.com 高等教育资讯网 版权所有