TP-Link T1600G-18TS Configuration Manual page 388

Configuring Layer 2 Multicast
3) Choose the menu VLAN > 802.1Q VLAN > VLAN Config to load the following page.
Create VLAN 10 and add Untagged port 1/0/1-3 and Tagged port 1/0/4 to VLAN 10.
Figure 5-20 Configure Link Type
4) Choose the menu VLAN > 802.1Q VLAN > Port Config to load the following page.
Configure the PVID of port 1/0/1-4 as 10.
Configuration Examples
Configuration Guide 365