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Western Jack ground and GPIO ground | Telit Cinterion IoT Developer Community

December 16, 2016 - 11:09pm, 2256 views


I would like to confirm if the western jack connector's ground is internally connected to the ground on the GPIO. We are concerned because the GPIO has a limit of 100mA thus if we do not connect the western jack ground could that cause the module to reboot, especially during transmission bursts? 

To put the question in an other way is it safe NOT to connect ground on the RJ connector?

We are looking for confirmation because the module can draw more than 100mA via the western jack and we are not sure if this may cause reboots since the ground on GPIO can only draw 100mA.

Thank you.