User's Manual

Sierra ROU 10W User Manual

Confidential: Any reproduction or distribution without the express written consent of FRTek Co. Ltd

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■ Appropriate Measures

－ Solution : Check and replace the FAN

－ Measures : Check the operation by chekcing and repacing the fan

(7) External FAN (MHU, ROU)

■ Phenomenon

－ Alarm window : GREEN → RED

■ Causes

－ Occuring some problems at external fan

■ Appropriate Measures

－ Solution : FAN Check and replace

－ Measures : Check the operation by chekcing and repacing the fan

(8) TX S/D(High) (ROU)

■ Phenomenon

－ Alarm window : GREEN → RED

■ Causes

－ TX output is higher than alarm setting value

■ Appropriate Measures

－ Solution : Set appropriate TX ATT

－ Measures : Setting the TX ATT in accordance with environment and truning ALC on to prevent to be S/D.

(9) DTU Status (MHU, ROU)

■ Phenomenon

－ Alarm window : GREEN → RED

■ Causes

－ Occur the problems at harbness connected DTU board or DTU board

■ 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