Cisco Serial Number Universal Device Poller.
Start > All programs > SolarWinds Orion> Network performance Monitor> Universal Device Poller.
Click “New Universal Device Poller”
Type the following OID 1.3.6.1.2.1.47.1.1.1.1.11 and Click Next.
Click Next
Select your required Node and Click Test.
Click "Finish"
Now import the report attached in Orion Report Writer
Start > All Programs > SolarWidns Orion > Alerting Reporting Mapping
Open > browse the Report and save.
( Please Wait for Next Polling Interval and you should be able to view the Results on Webpage.
For more details how to use Universal Device Poller please find the Video Tutorial below.
http://www.solarwinds.com/resources/videos/video-tutorial-universal-device-poller-in-orion-npm.html