backplane slot的意思|示意

If a particular switch card with no backplane connection is installed in a slot of the mainframe, it will be electrically isolated from other CARDS installed in the mainframe.

如果将没有背板连接的特殊开关卡安装到主机的某个插槽，那么它和主机中安装的其它插卡则是电气隔离的。

The end result is similar to having a system built with a motherboard, except that the backplane determines the slot configuration.

最终的结果是有一个类似的系统内置了主板，但确定的背板插槽配置。