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。
2
The vacuum load switch unit is fixedly sealed and isolated by adopting epoxy resin.
真空负荷开关单元采用环氧树脂固封绝缘。
3
Isolated relays, such as those used in the Model 7013 relay Switch Card, can be used to control certain test system requirements, such as the conveyor.