For anyone searching for the answer I figured it out myself, its for thier "EG4 BMS" app on the App Store, you can use this app to directly connect to...

  Not sure why no one here or email support has this answer but after lots of searching finally figured it out myself. The antennas are for the...

@eg4eric ... 7 months later do you have any information about the wifi antennas, how they are supposed to be used and their purpose??   &n...

Can anyone from EG4 comment here?

@simply-efficient thats my understanding, the switch on the gridboss needs to be directly connected to the RSD port on the flexboss for it to work...t...

@holymaniac Did you end up resolving this?

  Did you connect the the two wires for the rapid shutdown from the inverter terminals (the one that has the jumper cable on it) to the two ter...