User Manual
Table Of Contents
- System Part Number Explanation
- 1 Introduction
- 2 System Description
- 2.1 Master Unit
- 2.2 Remote Unit
- 3 System design
- 4 Installation guidelines
- 5 Commissioning
- 6 RF Commissioning
DELTANODE FIBER DAS MANUAL
©DeltaNode Solutions 2012
39
Revision 12-03
4.2 Installing the Master Unit and Remotes
All equipment must be properly grounded. This means that the ground peg in the mains connector for
both head-end gear (Master Unit) and remote gear (Remote Units) must be connected to Phase, Neutral
and Ground in a proper way before the plug is inserted in the unit.
The chassis of the remote and the rack of the master unit should be grounded to a potential bar or safety
grounding bar when operated. All electrical installations should be done by a certified electrician only.
5 Commissioning
5.1 Preparations
The minimum of preparations necessary are to have the system documentation which should include the
following items at least:
• The system layout and block schematic
• A connection diagram for the head-end Master Unit
• The type of connectors and tappers used to interface to the base station ports
• The number of carriers for each of the BIU that the base stations connects via
• Maximum output power for each service from the base stations
• Fiber losses should be documented beforehand so that you can compare what the system
actually measures
• Sectorization information, which sectors should go to which remotes
• DAS calculator sheets showing the expected settings for each of the RF chains in uplink and
downlink.
• Information about Ethernet connection if the system should be monitored by remote. How to
connect it to the Internet for remote viewing unless you are using a modem.
5.1.1 Necessary tools
The tools necessary to commission the system includes:
• One laptop for changing the system settings, checking any alarms and status. Only software
needed is a web browser. Operating system can be Windows, Linux or Mac as you prefer.
• Spectrum analyzer to measure the uplinks. The system relies on test tone measurements in the
uplink and therefore it is important to have equipment to measure them
• SMA tool to be able to connect or disconnect BTS cables from the BIU.
• QMA adaptor so you can measure signals directly on the head-end units such as the FOI, BIU, POI
and so on.
5.1.2 Software
No particular software is necessary except a modern graphical based web browser.