This read-write object sets, for a Master, the range of addresses (in multiples of ten) of distant-end units the master will forward EDMAC messages for; for a Slave, it reports that slave's own fixed, query-only address. This address is what an EDMAC-based management system uses to route management traffic to the correct specific remote unit among potentially many sharing the same outbound carrier, so a master configured with an incorrect address range would fail to relay management traffic for remotes actually assigned addresses outside that configured range. A slave unit reporting an address of 30 tells the network operator that its master must be configured to include address 30 within its forwarding range, or that specific remote's EDMAC management traffic won't be relayed by the hub.