› M1 Support Forum › M1DBH and M1DBHR together › Reply To: M1DBH and M1DBHR together
December 7, 2020 at 5:04 pm #4504
ELK Tech Support
J1 and J2 are in parallel with each other and are the same connection point as the RS485 Terminals +VKP, Data A, Data and NEG. J1 and J2 are generally used as temporary connection points for example bench testing. If you connect the M1DBH to J1 and another Bus Device to J2 this would be the same as Two Home Run Connections.