Difference between Access Point / Station and Bridge / Router?

In my current network setup, I have a Cisco RVS4000 router that feeds into a 48 port ethernet switch and a Ubiquiti PicoStation M2 wireless access point.

I want the Cisco router to act as a DHCP server for the whole network. I am unsure how I should setup the Ubiquiti PicoStation M2...

The 2 options which seem relevant are Network Mode and Wireless Mode.

The options for Network Mode are:

• Bridge
• Router
• SOHO Router

The options for Wireless Mode are:

• Station
• Station WDS
• Access Point
• Access Point WDS

From what I've read and what I want... I'd go for Bridge and Access Point?

Yes, Bridge and Access Point are the correct settings for extending your existing network onto wireless "media". the other options would create a second network.