Nortel Networks M3310 - Manual (Page 210)

210 Digital Telephone IP Adapter Installation and Administration Guide
Troubleshooting Standard 2.1
Digital Telephone IP Adapter unit LED
indicators
During the Digital Telephone IP Adapter power-up cycle, watch the front panel
of the Digital Telephone External IP Adapter, or the rear panel of the digital
telephone housing the Digital Telephone Internal IP Adapter. The LED
indicators normally behave as follows:
!
The Power LED lights up and remains lit.
!
The remaining LED indicators flash whenever there is network activity.
If the LED indicators display incorrectly:
!
Ensure that the Digital Telephone IP Adapter unit is connected to a power
source.
!
If you are using an uninterruptible power supply (UPS), ensure the UPS is
powered on.
!
Verify that the AC power source is operational.