Any of the following alarms occurs: ALM-10077, ALM-34110, ALM- 34120, ALM-34122, ALM-34231, ALM-10004, ALM-34011, ALM- 34001, ALM-34003, ALM-34005, ALM-34142, ALM-34143, and ALM- 34148. In this case, check whether the optical cable and optical module are normal. This document provides a troubleshooting guide for the WiMAX RRU3702 Radio Remote Unit. After combining the RRU log analysis and the alarm of the optical module, the radio frequency maintenance link is triggered by the power-off of the RRU board, as shown in the following screenshot. The cause of the RRU startup alarm record is. HW&Frequent Alarm • - HW alarm & procedure • - frequently alarm & procedure • - follow alarm from BE & procedure HW alarms & Procedure • 1. Hardware overview • DU Board: DUL20 Port Connector Description RI A-F SFP Interface DU-RU (electrical) or DU-RRU (optical) TN A RJ-45. This document describes the Remote Radio Unit multi-Standard (RRUS) 32. Remote Radio Unit (RRU) is often used as a generic expression for a remotely installed Radio Unit (RU). Seals that have been implemented by Ericsson must not be broken or. The common faults related to the RF channels are uplink channel fault, uplink interference, eNodeB fault connection of antenna, downlink channel fault, downlink antenna fault, This document describes the analysis procedure beginning from problem symptom to conclusion. VSWR alarm. OFF: The optical fiber is disconnected. Hardware failure self-test and alarm; Environment Detection; Provide 2 paths of baseband–RF interface and 4 paths of external alarm input, and a serial port, a FE interface, a.
