LED电话机附加器,线路简洁、发光醒目、功能齐全、安装简便、耗电低、不影响通话质量,是一种集实用性、装饰性于一体的较为理想的电话机附加装置。电路如图所示。它由LS1003多功能模块和6只变色发光二极管组成,直接并接于外线和电话机之间,从而自动实现夜间微光照明、外线及电话机故障监测、外线被盗用监测、分机 LED telephone add-on, the line is simple, glittering, full-featured, easy to install, low power consumption, does not affect the call quality, is a practical, decorative in one of the more ideal telephone add-ons. Circuit as shown. It consists of LS1003 multi-function module and 6 color LED, and directly connected between the outside and the telephone, which automatically achieve night lighting, outside and telephone monitoring, outside monitoring of theft, extension