You can create an uplink port by specifying the vlans on the ports 
hello all -  we are a church with a very simple setup.  we need to have one port dedicated to a public wi-fi, and the rest of the ports for the church office.  one (or more) ports will connect to our router. so, i am thinking about a setup like this (again, please remember i am a noob) port 1 - connected to a dedicated pc to monitor switchports 2-3    port two goes to our wi-fi wireless-access-point, port   port three goes to our routerports 4-48    ports 4 through 47 are all the computers, printers, etc   port 48 also goes to our router i figured out how to get into the serial interface, by entering: then i went into the website interface, created two vlans, and set ports 2&3 to "U" on the pubic-vlan, and set ports 4-48 to "U" on the office-vlan. i would like to run this past anybody who knows more about this than i do (which includes just about everybody) previously we had a PS-3448 and i just simply ran the following script (below), but that didn't work on this new switch.  on the PS-3448 i only needed one cable for the router, not two.  but again i am only guessing here. any help would be most appreciated by me and everybody at the church!  PS-3448 setup script below: enableconfig interface vlan 1ip address 192.168.123.234 /24exit ip default-gateway 192.168.123.254username admin password admin level 15 interface ethernet e1switchport mode private-vlan isolatedexit interface range ethernet e(2-48)switchport mode private-vlan communityexit interface ethernet g4switchport mode private-vlan promiscuousexit vlan databasevlan 1000exit interface vlan 1000private-vlan primaryprivate-vlan isolated 20private-vlan community add 10exit interface range ethernet e(2-48)switchport private-vlan community 10exit interface ethernet g4switchport private-vlan promiscuous 1000exit interface ethernet e1switchport private-vlan isolated 1000exitexitcopy running-config startup-configY show vlan private-vlan primary 1000show running-configshow startup-config 
noob initial setup on the powerstack 6248 from a 3248