Nortel CTA 500dm Installation Manual page 82

82 Appendix
CTA 500 dm LED
CTA 500 dm On Line Guide
The status LED is on the back of the CTA 500dm. It provides
information about the current state of the CTA 500dm and the
B-channels based on its ßashing pattern.
The following table shows the LED ßashing patterns and
CTA 500dm states.
LED Pattern CTA 500 dm State
continuous on Idle
single blink on Active
double blink on Active
single blink off off-line (error or powering up)
fast blink waiting for file download (refer to
"Installing CTA 500dm and
Norstar TAPI Service Provider
software" on page
slow blink out-of-sync (network not available)
(refer to
page
12)
"Power problem?" on
71)
B-channel State
both idle
one channel active
both channels active
not available
not available
not available
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