There is a blog that details how you can use your own switch to connect to the Optical hub.
The suggested switch used is a "managed switch that support vlan tagging". Vlan tagging is actually a protocol IEEE 802.1Q. The switch must be able to support this tagging.
Tag used as belows.
vlan 10 - Internet
vlan 20 - MIO TV
vlan 30 - VOIP
vlan 40 - Management
I don't quite know what vlan 40 is used for.