Ok, So I figured it out thanks to the following thread:
First, my items file is wrong.
In the Paper UI under Things, I select my target device. Then under the “Switch” channel, I have the following text (I blanked out the custom item id):
zwave:device:(customitemid):node2:switch_binary
In my items file, I add this text to the appropriate place:
Switch Test_Power {channel=“zwave:device:(customitemid)node2:switch_binary”, autoupdate=“true”}
Then my sitemap looks like this:
itemap test label=“test”
{
Frame label=“test”
{
Switch item=Test_Power
}
}