Balance 1350 with a remote MAX-HD2

Depending on the number of VLANs you want to extend between the locations you have two fundamental approaches.

  1. Create a single layer 2 SpeedFusion VPN between the two devices, with an access port to that VPN presented at either end. Then connect your existing managed switches / routers to those ports to trunk the VLANS. (whatever VLANs you present to the access port at one end will be available at the other),
  2. Create a SpeedFusion VPN between the two devices and use multiple Layer 2 sub-tunnels (upto 4) one per VLAN that you want to extend. Then you can connect VLANs at either end via individual sub tunnels.

Some links:
Video tutorial on using Layer 2: https://peplink.ninja/2020/06/04/using-sd-wan-as-a-long-distance-ethernet-cable/