User's Manual
Table Of Contents
- Chapter 1 - Introduction
- Chapter 2 – Hardware Overview
- Chapter 3 – Installation and Initialization
- Chapter 4 - Commissioning
- Introduction
- Access Rights
- Restore Defaults
- Configure, Manage and Monitor using Web Browser
- General Screen
- IP Address Setup
- Dual License - Design Type Setup
- Frequency, Modulation and ATPC Setup
- Ethernet Advanced Configuration
- Data Rate Settings for Connected User Interfaces
- Save Configured Parameters
- BER Test – GX800 Link and User Lines Verification
- Analysis of Interference in GX800 link
- Firmware Upgrade, License Upgrade
- Alarms
- SNMP Settings
- IP Management
- Chapter 5 – Troubleshooting
- Chapter 6 - Technical Parameters
- Chapter 7 - Appendix
the value of the measured signal varies significantly, and so the measurement risks becomes
inaccurate.
!! ATTENTION !! When aligning the antennas watch out for the possibility of "false"
alignment on the side lobes of remote antenna. It is important to identify main lobe
antenna, by rotating the antenna to have the maximum RSL voltage. The value of RSL
should always correspond to expected calculated value of input signal strength.
The Basic Link Function Test - Verification
Before connecting to the user's ports, it is good to quickly perform a basic test that verifies proper
GX800 link installation and its error-free condition.
Obtaining the Basic Link Information
To obtain basic link information, navigate to General menu and Status sub-menu in the
Graphical User Interface (GUI) and evaluate the following parameters:
Key Parameters Description
TX Power
Data should have a value corresponding to the assignment
(Telecommunication Authority)
RX Level
Data should be in the range -35 to -50 dBm and should correspond
to the expected level resulted from calculation tolerance + / - 3dBm).
Approximately the same value (+ / - 3dBm) should be measured on
the opposite side too.
Mean Square
Error (MSE)
Data should be in the range -40 (better) to -32(worse) dB (the lower
the better)
The Mean Square Error (MSE) refers to the average of the square
difference between the actual received symbols and the idealized
points. The closer the points are in the state diagram - the better.
Modem sync The synchronization status of the modem part should be set to OK.
MSE threshold for each modulation is as follows:
128QAM : - 26 dB
64QAM : - 23 dB
32QAM : - 20 dB
16QAM : - 17 dB
QPSK : - 10.5 dB
The same evaluation needs to be done on the other side of the link.
!! Note !! As final adjustment of the GX800 link parameters is not yet done (especially IP
address), you may find the icon of the opposite terminal not yet glowing green.
If the measured values do not match the above said values, it is necessary to perform a detailed
check of the link adjustment.
Tsunami™ GX800 Installation and Management Guide 19