User's Manual

Sierra ROU 40W User Manual
© FRTek Co. Ltd 2015
33
Confidential: Any reproduction or distribution without the express written consent of FRTek Co. Ltd
or FRTek US LLC is strictly prohibited
7. Alarm and Troubleshooting
(1) AC (MHU, ROU)
■ Phenomenon
－ PSU LED : PSU AC LED Off
－ Alarm window : GREEN → RED
■ Causes
－ Input power 120V/AC is not normally enters
■ Appropriate Measures
－ Solution : Check the Input power 120V/AC
- Measures : Check the input power 120V/AC, if there is no problems, check the operation by replacing PSU.
(2) DC (MHU, ROU)
■ Phenomenon
－ PSU LED : PSU DC LED RED
－ Alarm window : GREEN → RED
■ Causes
－ PSU output voltage decreases 85% or under
■ Appropriate Measures
－ Solution : Replacing PSU
- Measures : Check the operation by repacing PSU
(3) LD Alarm (MHU, ROU)
■ Phenomenon
－ Alarm window : GREEN → RED
■ Causes
－ LD of optical module is not normal
■ Appropriate Measures
－ Solution : Replacing optical module
－ Measures : Check the operation by repacing optical module
(4) PD Alarm (MHU, ROU)
■ Phenomenon
－ Alarm window : GREEN → RED
■ Causes
－ PD of optical module is not normal
■ Appropriate Measures
－ Solution : Clean optical connector and check optical cable or replacing optical moduel
－ Measures : Clean optical connector, check the optic cable and fix the problem.
If there is no falut, replace the optical module.
(5) TX/RX PLL (MHU, ROU)
■ Phenomenon