RC7611-1 rebooting during LTE TX test

IoT Modules RC76
1

Looping 12.5 LTE RF Transmission Path Test from Sierra Wireless RC76xx Product Technical Specification

Observe on random loops see the COM port close and see reset counter increment to 2 after re-connecting after shutting off TX.

Model RC7611-1

Fimware: SWI9X07H_00.03.03.00 2bb7a4 jenkins 2020/04/15 07:57:

Have adequate current draw and also see using 0 dBm instead of procedure’s 10 dBm power.

2

Hi @wallaceb
Welcome you to our community!
Could you please share with me some information as below:

  1. Please upgrade to the latest firmware for your RC7611-1 by following the link below and then recheck whether the issue is resolved?
    https://source.sierrawireless.com/resources/airprime/software/rc76xx/rc76xx-firmware-release-9,-d-,0/#sthash.PtqmxwTa.dpbs

  2. Has this issue happened before? Or is this the first time?

  3. How many RC7611-1 module do you have? Can you try on another RC7611-1 module to see if get the same issue?

  4. Please share with me the AT command log and specific step by step you tested on your RC7611-1 module

Thanks,

3

Hello,

I debugged more by adding additional delay, after boot (enumeration) and FTM mode and also initialized the RST pin state on test system (was un-initialized). I am now unable to reproduce and appears more stable. I’m going to close topic for now.