LB1120 - replacement for VerizonJetpack

Would like to undestand how to replace a Jetpack from Verizon with a LB1120 and have that provide internet access to my Orbi Mess network.   

Need to understand the steps needed to accomplish this.

Currently I have a Linkys system connected to the Jetpack via WiFi and then an ethernet cable to the Orbi system.  Works most of the time but need to reboot the Jetpack occationally.  Looking for a direct connect from Verizon to Ortbi.