SIMCom Wireless Solutions Co.,Ltd.

   
Home > Service and Support > Routine Problems
< Return to the list

Usage of RI

2018-10-15 17:38:53

Incoming messages: The voltage of RI changes from high to low (RI will output low level pulse of 120ms when receiving a message).
Incoming calls: The voltage of RI changes from high level to low level (RI will remain low level until the call is answered).

Contact us

+86 21 31575100

Follow us

WeChat

Copyright © 2020 芯讯通无线科技(上海)有限公司 版权所有 All Rights Reserved. 沪ICP备18031063号