TROUBLESHOOTING THE DMTX4
ChromaFlex DMT24, DMT34 & DMT44 Multi-Wavelength DWDM Direct Modulated Transmitter Module – Hardware Interface Manual
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TROUBLESHOOTING THE DMTX4
10 . Troubleshooting The DMTx4
Condition
Steps to Check
Power LED OFF (AC)
Check if Power Cable is plugged in and Power Switch is in ON position.
Verify AC Outlet is Functional and confirm fuse on the AC feed is fine, replacing it if
necessary.
Look for other signs of life in unit like running fan, LCD display etc.
Power LED OFF (DC)
Verify DC Feed is active and fuse is intact on fuse panel.
Verify DC Feed is not reversed.
Look for other signs of life in unit like running fan, LCD display etc.
Optical LED is Amber or Red
Check output light level.
RF LED is Amber or Red
Check RF Input level.
If in MGC mode Attn set too high (or too low if overdriving RF inputs).
Communication Issue with Unit
Please confirm set-up is as described in the User Interface document.
If problem persists, please contact customer service for further help.
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