Modem WPS Light not lit

[#1]

Hi, I have a new modem from Plusnet, Technicolor TG582n. It was set up by Plusnet for my account and all I had to do was plug it in  :). It's working fine. I have read the instructions, all the lights, dns, wireless, etc are lit green but the WPS light is not lit up at all. Is it supposed to be? Have I got security working?
Thanks.
If this is in the wrong place I will delete or move it, sorry.

[#2]

Fenster
From what i can remember WPS light on router only comes on if you press this to link up with other devices, as for security this should be set to WPA2-Personal this is the most secure setting.
Click on link below, fro understanding on what lights do on your router;
https://support.gradwell.com/entries/23135091-Understanding-the-lights-on-the-Technicolor-TG582n-bro...

[#3]

Hi Fenster,
As long as you have a Green/ Amber light on the Wireless Light on your router, you are secure. The WPS light won't come on unless you physically press it to pair a device to it.

[#4]

Thanks Markm9 and Chris. I will study the link, very useful.  I have a Tablet and a smart phone which I have put the password into so they can now use the modem to connect to the internet. That is pairing? Anyway everything works, just wondered about the light.
Thanks