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
Chapter 5 Troubleshooting
User Login Problems
A user logs out from the application without LOGOUT only when another user logs in and kill the
current user. Please note that an Administrator user can kill USER/GUEST but vice-versa is not
applicable.
To avoid login problems, do not use browser's “back“, “forward” or “refresh” buttons but only the
links and buttons of the web interface.
A user might log out also when the link takes longer time to respond.
Login Problems While Device Restarts
• Web Interface: These problems occur when when the ODU is not connected and you
tried to login before the connection got established. When the device restarts, wait for
about 30-60 seconds, and then login.
• Command Prompt: When you try to login to the device after its restart using RJ45 to
RS232 interface and a message is displayed at prompt saying “no access”. This
happens probably when IDU does not communicate correctly with its own peripheries
including ODU (typically disconnected ODU). This status can last about 30 seconds. If it
happens for a longer period of time during the device operation, or if these commands
cause terminal “freezing”, use the command “reset killmonitor” (it causes shorter drop out
– approximately 5 seconds), or restart device (“reset system” - longer drop out –
approximately 35 seconds).
Problems in Communicating with the ODU
When you face these problems, disconnect the IF cable from ODU and measure voltage on the
ODU RF connector. The measure voltage should be same as IDU supply voltage (Depending on
the cable length, the maximal decline is -2 V). If it is not same then check the device
consumption. The IDU consumption together with ODU should be approximately 1 A.
Problems in Setting ODU Parameters
Before setting the ODU parameters (set rad txf and set rad txp) in the text mode, use “?” for
viewing adjustable values. Maximal output power of ODU depends on the type of modulation.
Problems with Modem Synchronization
Check the external Automatic Gain Control (AGC) which is the automatic adjustment of IDU gain
at receiving way (cable). The ideal value is between 4 to 16 dB. The more the value, the higher is
the IF attenuation. The displayed gain can be a maximum of 17.5 dB, which means:
1. No signal is received
2. ODU is not powered
3. Broken cable
Problems with Received Signal (Rx) level at ODU
Check whether the ODU parameters are properly set (the Tx frequency and Rx frequency should
be same on both the terminals, adequate output power and ODU is not muted) for both the IDUs.
Next, check for correct installation and antenna alignment (voltmeter on BNC connector).
Tsunami™ GX800 Installation and Management Guide 52