“施工电梯安全通信装置”日前通过评议,这套装置是上海市建四公司为解决施工电梯的安全通信而研制的,它由①信号按钮有线对讲机;②电力载波通话器;③调度控制台等三个主要部门组成。使用方法:施工人员需要电梯时,可通过各楼层电梯口的按钮 “Safety elevator construction elevator” recently passed the appraisal, this set of equipment is built in Shanghai four companies to solve the construction of elevator safety communications and developed by the ① signal button wired interphone; ② power line phone; ③ scheduling console Three major departments. How to use: When construction workers need an elevator, they can push the button of elevator on each floor