User's Manual
Sierra ROU 40W User Manual
© FRTek Co. Ltd 2015
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Confidential: Any reproduction or distribution without the express written consent of FRTek Co. Ltd
or FRTek US LLC is strictly prohibited
■ Appropriate Measures
- Solution : Replacing the harbness connected DTU, if it still has the problem, replace the DTU board
- Measures : Check the operation by replacing the harbness connected DTU or DTU board.
(10) DTU Link Fail (MHU, ROU)
■ Phenomenon
- Alarm window : GREEN → RED
■ Causes
- Occur the problems of link fail between DTU board and CPU
■ Appropriate Measures
- Solution : Check Reference clock or Check the connectivity between DTU board and Back Board
- Measures : Check the connectivity status of DTU board and replace DTU board.
(11) VSWR (ROU)
■ Phenomenon
- Alarm window : GREEN → RED
■ Causes
- Occur the problems at antenna input port or AMP
■ Appropriate Measures
- Solution : Check antenna inputport connection status, if there is no fault, replace the AMP
- Measures : Check the antenna input port and if there is no fault, replace the AMP and confirm it works.
(12) Over Power (ROU)
■ Phenomenon
- Alarm window : GREEN → RED
■ Causes
- Has the problem at RRFU intergrated module output
■ Appropriate Measures
- Solution : Although it set the static output by controling ATT, if it still has the problem, RRFU intergrated
moduled should be replaced
- Measures : Check the operation by chekcing and repacing the RRFU intergrated module
(13) Over Temp (ROU)
■ Phenomenon
- Alarm window : GREEN → RED
■ Causes
- RRFU’s intergrated module temparature is more than 85℃
■ Appropriate Measures
- Solution : Checm the temparatrue table. Even though it is set approprate temarature, still has a problem. APD
AMP should be replaced.
- Measures : Check the operation by replacing the RRFU intergrated module
(14) Battery (ROU)
■ Phenomenon
- Alarm window : GREEN → RED
■ Causes
- Battery has some problems.