Finally I connected all necessary ports on the 48p patch panel and on the 48p switch. Connected 1:1, ie. port 1 on patch is port 1 on switch. I wanted to reconnect my NVR from port 2 to port 49 on the switch to have free port 2 for keeping the 1:1 connections with patch panel, but it failed. When I insert SFP to RJ45 module to port 49 and reconnect NVR, it is unreachable. I enabled port 49 in MAC VLAN settings, in 802.1Q VLAN settings set untagged port 49 in same VLAN10, as was by port 2. Everything should be fine, but it doesn't work. I don't know why.