设备的符号不表示任何制造商的类型或型号。他们 表示在电缆系统中操作的设备的功能。这些符号很容易识别 在轮廓内或轮廓附近添加型号或型号。如果这种型号或类型 使用名称时，应在图例页上说明这些名称 用于显示符号的图形。

The symbols for devices do not indicate types or model numbers of any manufacturer. They represent the function of the device operated within a cable system. The symbols permit easy addition of model or type numbers within or near their outline. If such model or type designations are used, an explanation of these designations should be placed on a legend sheet for the drawing on which the symbols appear.