Is possible to apply VLAN segregation with layer2 switch?

Hi all,

on my project i have to implement Network segregation (logical or physical).

The problem is that they only have FORTISWITCH 148E that it's a switch layer 2.

So as far i know is not possible to use this switch for VLAN implementation and segregation because it's allows only the communication INTRA-VLAN and not INTER-VLAN (between 2 different VLANS)

The only way is through a physical segragation, right? or there is some way to go on with logical?

Also on on fortinet site they report for this switch:

- VLANs Supported

they means that it's support the INTRA-VLAN communication right? because its a little misleading.

thanks in advance!!