# \[Hilo\] What will happen if I toggle RTS signal?

**URL:** <https://forum.sierrawireless.com/t/hilo-what-will-happen-if-i-toggle-rts-signal/6570>\
**Category:** HL Series FAQ\
**Created:** [July 23, 2013, 6:36am UTC](https://forum.sierrawireless.com/t/hilo-what-will-happen-if-i-toggle-rts-signal/6570 "2013-07-23T06:36:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![FAQ\_Poster](https://avatars.discourse-cdn.com/v4/letter/f/f9ae1b/32.png) [@FAQ\_Poster](https://forum.sierrawireless.com/u/FAQ_Poster)\
**Post date:** [July 23, 2013, 6:36am UTC](https://forum.sierrawireless.com/t/hilo-what-will-happen-if-i-toggle-rts-signal/6570/1 "2013-07-23T06:36:25Z")

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Answer: When AT&K3 is set to enable the hardware flow control  
If you toggle RTS to inactive, the terminal will be not able to receive the data from the module any more. As a result, the data is buffered…  
If you toggle RTS back to active, the buffered data will be sent to PC immediately.

When AT&K0/AT&K4 is set to disable hardware flow control:  
If you toggle RTS to inactive or active, then no impact for the data, the terminal will still be able to receive the data from the module.