User's Guide
Table Of Contents
- User Guide
- Contents
- Preface
- 1 About this Guide
- 2 Overview
- 3 RU Hardware Feature
- 3.1 System Configuration
- 3.2 RU Specifications
- 3.3 Environment Specifications
- 3.4 RU Downlink/Uplink Default Parameters
- 3.5 Antenna Configuration
- 3.6 Carrier Configuration
- 3.7 Block Diagram
- 3.8 External Interface
- 3.9 TX Control Function
- 3.10 Performance Requirement
- 3.11 Mechanical Design and Other Options
- 4 Ordering Information
- 5 Installation
- 6 Operations
- 7 Maintenance and Trouble Clearing
- 8 Removal
- A References
- B ZTP Overview
- C Optical Connector Cleaning
- D Glossary
- Index
3.8.5
Debug/Test Port
The RU has a debug/ test port for predeployment purposes, for example, development and manufacturing
verification.
Attention: This port is for factory use only.
3.8.6
Maintenance Interface
A maintenance interface area is located on the bottom of the RU. This area is sealed by a maintenance cover
with protection against water ingress. The maintenance cover can be opened manually without tools.
The RU maintenance cover has at least three LEDs that indicate the status of the RU, for example, operation,
failure (machine status) and eCPRI link.
■ One Fault, Red color
■ One Operational, Green color
■ One Interfaces, Green color (one corresponding to eCPRI port)
The software controls the on/ off and blinking LEDs according to the status of the RU.
Table 10
RU Status by LED Combination
RU status
LED
Operation Fault Fronthaul
Operational Green blinking Red off Don't care
TxON Green on Red off Don't care
BLK Green blinking Red blinking Don't care
Alarm (M ajor) Green off Red blinking Don't care
Alarm (Critical) Green off Red on Don't care
Alarm (minor) Green blinking or Green on Red blinking Don't care
L1 disconnection Don't care Don't care Green off
L1 link found
(M -Plane not found)
Don't care Don't care Green blinking
RU Hardware Feature
External Interface
41
Release 1.0 · Issue 1, March 2021
Fujitsu and Fujitsu Customer Use Only