With nLight devices, there are sometimes error codes that will sequence as the device is added to the system. These codes represent different issues based on the sequence.
2 Blinks/Rapid Flash= Communication Error
3 Blinks/Rapid Flash= Bus Power Error
4 Blinks/Rapid Flash= Legacy Device Update Error*
Steady/No FLash= Polling device, no error.
* Legacy errors can happen when a new device is added into an older system, and there is a firmware comparability error. Sometimes this can be resolved by updating the firmware of the older devices.