摘要
本文所介绍的大容量编码对讲系统是一种全新观念的对讲设备,它在门路选择设计上首次采用音频数字编码切换方式,替代了目前对讲机中的简单直接切换方式,这不仅增大了对讲容量,而且输出联线固定为5根不变,使其容量可不受联线的限制而根据需要任意增加,从而大大拓宽了对讲机的使用范围。
This article presents a new capacious automatic codig two-way intercom.This intercom,which for the first time,applies a way of audio-frequeney numerical co- ding exchange in selecting terminal and has more advantages than the previous simple direct exchange intercom.It can increase the intercom capacity without changing of the five output lines.The specific property make the capacity be able to increase according to need while not being affected by output lines and thus makes the intercom be used more widely.
出处
《医疗卫生装备》
CAS
1990年第1期24-25,共2页
Chinese Medical Equipment Journal